8 files changed, 1086 insertions, 0 deletions

diff --git a/creg/test_data/auto-mpg.testfeat b/creg/test_data/auto-mpg.testfeat
new file mode 100644
index 00000000..91c21e99
--- /dev/null
+++ b/creg/test_data/auto-mpg.testfeat
@@ -0,0 +1,93 @@
+test1_fiat_124b	{"horsepower": 76.0, "acceleration": 14.5, "cylinders": 4.0, "displacement": 88.0, "weight": 2065.0}
+test2_dodge_aspen	{"horsepower": 110.0, "acceleration": 18.7, "cylinders": 6.0, "displacement": 225.0, "weight": 3620.0}
+test3_toyota_celica_gt_liftback	{"horsepower": 95.0, "acceleration": 14.8, "cylinders": 4.0, "displacement": 134.0, "weight": 2515.0}
+test4_amc_matador	{"horsepower": 110.0, "acceleration": 18.0, "cylinders": 6.0, "displacement": 258.0, "weight": 3632.0}
+test5_audi_5000s_(diesel)	{"horsepower": 67.0, "acceleration": 19.9, "cylinders": 5.0, "displacement": 121.0, "weight": 2950.0}
+test6_datsun_310	{"horsepower": 65.0, "acceleration": 16.4, "cylinders": 4.0, "displacement": 86.0, "weight": 2019.0}
+test7_chevrolet_woody	{"horsepower": 60.0, "acceleration": 22.1, "cylinders": 4.0, "displacement": 98.0, "weight": 2164.0}
+test8_volkswagen_1131_deluxe_sedan	{"horsepower": 46.0, "acceleration": 20.5, "cylinders": 4.0, "displacement": 97.0, "weight": 1835.0}
+test9_plymouth_satellite_sebring	{"horsepower": 105.0, "acceleration": 16.5, "cylinders": 6.0, "displacement": 225.0, "weight": 3613.0}
+test10_amc_matador	{"horsepower": 120.0, "acceleration": 13.9, "cylinders": 8.0, "displacement": 304.0, "weight": 3962.0}
+test11_chevrolet_chevette	{"horsepower": 52.0, "acceleration": 22.2, "cylinders": 4.0, "displacement": 85.0, "weight": 2035.0}
+test12_buick_century_special	{"horsepower": 105.0, "acceleration": 15.8, "cylinders": 6.0, "displacement": 231.0, "weight": 3380.0}
+test13_ford_escort_2h	{"horsepower": 65.0, "acceleration": 20.7, "cylinders": 4.0, "displacement": 98.0, "weight": 2380.0}
+test14_ford_torino_500	{"horsepower": 88.0, "acceleration": 15.5, "cylinders": 6.0, "displacement": 250.0, "weight": 3302.0}
+test15_dodge_aries_wagon_(sw)	{"horsepower": 92.0, "acceleration": 14.4, "cylinders": 4.0, "displacement": 156.0, "weight": 2620.0}
+test16_plymouth_valiant	{"horsepower": 105.0, "acceleration": 16.5, "cylinders": 6.0, "displacement": 225.0, "weight": 3121.0}
+test17_amc_pacer	{"horsepower": 90.0, "acceleration": 17.0, "cylinders": 6.0, "displacement": 232.0, "weight": 3211.0}
+test18_honda_civic	{"horsepower": 97.0, "acceleration": 15.0, "cylinders": 4.0, "displacement": 120.0, "weight": 2489.0}
+test19_ford_ltd	{"horsepower": 148.0, "acceleration": 13.5, "cylinders": 8.0, "displacement": 351.0, "weight": 4657.0}
+test20_volkswagen_rabbit	{"horsepower": 70.0, "acceleration": 14.0, "cylinders": 4.0, "displacement": 90.0, "weight": 1937.0}
+test21_honda_civic_1500_gl	{"horsepower": 67.0, "acceleration": 13.8, "cylinders": 4.0, "displacement": 91.0, "weight": 1850.0}
+test22_chevrolet_impala	{"horsepower": 165.0, "acceleration": 12.0, "cylinders": 8.0, "displacement": 350.0, "weight": 4209.0}
+test23_chevrolet_chevette	{"horsepower": 63.0, "acceleration": 17.0, "cylinders": 4.0, "displacement": 98.0, "weight": 2051.0}
+test24_amc_concord	{"horsepower": 90.0, "acceleration": 17.2, "cylinders": 6.0, "displacement": 232.0, "weight": 3210.0}
+test25_ford_pinto	{"horsepower": 83.0, "acceleration": 17.0, "cylinders": 4.0, "displacement": 140.0, "weight": 2639.0}
+test26_ford_country_squire_(sw)	{"horsepower": 142.0, "acceleration": 14.3, "cylinders": 8.0, "displacement": 351.0, "weight": 4054.0}
+test27_plymouth_valiant_custom	{"horsepower": 95.0, "acceleration": 16.0, "cylinders": 6.0, "displacement": 225.0, "weight": 3264.0}
+test28_chevy_s-10	{"horsepower": 82.0, "acceleration": 19.4, "cylinders": 4.0, "displacement": 119.0, "weight": 2720.0}
+test29_maxda_rx3	{"horsepower": 90.0, "acceleration": 13.5, "cylinders": 3.0, "displacement": 70.0, "weight": 2124.0}
+test30_plymouth_sapporo	{"horsepower": 105.0, "acceleration": 16.7, "cylinders": 4.0, "displacement": 156.0, "weight": 2745.0}
+test31_amc_hornet	{"horsepower": 90.0, "acceleration": 17.6, "cylinders": 6.0, "displacement": 232.0, "weight": 3085.0}
+test32_chevrolet_caprice_classic	{"horsepower": 145.0, "acceleration": 12.5, "cylinders": 8.0, "displacement": 305.0, "weight": 3880.0}
+test33_pontiac_sunbird_coupe	{"horsepower": 88.0, "acceleration": 16.0, "cylinders": 4.0, "displacement": 151.0, "weight": 2740.0}
+test34_mercury_marquis_brougham	{"horsepower": 198.0, "acceleration": 11.5, "cylinders": 8.0, "displacement": 429.0, "weight": 4952.0}
+test35_mercury_monarch_ghia	{"horsepower": 139.0, "acceleration": 12.8, "cylinders": 8.0, "displacement": 302.0, "weight": 3570.0}
+test36_ford_country_squire_(sw)	{"horsepower": 170.0, "acceleration": 12.0, "cylinders": 8.0, "displacement": 400.0, "weight": 4746.0}
+test37_audi_fox	{"horsepower": 83.0, "acceleration": 16.5, "cylinders": 4.0, "displacement": 98.0, "weight": 2219.0}
+test38_triumph_tr7_coupe	{"horsepower": 88.0, "acceleration": 15.1, "cylinders": 4.0, "displacement": 122.0, "weight": 2500.0}
+test39_dodge_d100	{"horsepower": 150.0, "acceleration": 14.0, "cylinders": 8.0, "displacement": 318.0, "weight": 3755.0}
+test40_mercury_cougar_brougham	{"horsepower": 130.0, "acceleration": 14.9, "cylinders": 8.0, "displacement": 302.0, "weight": 4295.0}
+test41_pontiac_phoenix_lj	{"horsepower": 105.0, "acceleration": 19.2, "cylinders": 6.0, "displacement": 231.0, "weight": 3535.0}
+test42_vw_rabbit_custom	{"horsepower": 71.0, "acceleration": 14.0, "cylinders": 4.0, "displacement": 89.0, "weight": 1925.0}
+test43_peugeot_504	{"horsepower": 87.0, "acceleration": 17.5, "cylinders": 4.0, "displacement": 110.0, "weight": 2672.0}
+test44_datsun_310_gx	{"horsepower": 67.0, "acceleration": 16.2, "cylinders": 4.0, "displacement": 91.0, "weight": 1995.0}
+test45_dodge_monaco_(sw)	{"horsepower": 180.0, "acceleration": 11.5, "cylinders": 8.0, "displacement": 383.0, "weight": 4955.0}
+test46_chevrolet_monza_2+2	{"horsepower": 110.0, "acceleration": 13.5, "cylinders": 8.0, "displacement": 262.0, "weight": 3221.0}
+test47_capri_ii	{"horsepower": 92.0, "acceleration": 14.9, "cylinders": 4.0, "displacement": 140.0, "weight": 2572.0}
+test48_mazda_rx2_coupe	{"horsepower": 97.0, "acceleration": 13.5, "cylinders": 3.0, "displacement": 70.0, "weight": 2330.0}
+test49_plymouth_fury	{"horsepower": 95.0, "acceleration": 19.0, "cylinders": 6.0, "displacement": 225.0, "weight": 3785.0}
+test50_plymouth_fury_iii	{"horsepower": 215.0, "acceleration": 8.5, "cylinders": 8.0, "displacement": 440.0, "weight": 4312.0}
+test51_dodge_st._regis	{"horsepower": 135.0, "acceleration": 15.2, "cylinders": 8.0, "displacement": 318.0, "weight": 3830.0}
+test52_amc_spirit_dl	{"horsepower": 80.0, "acceleration": 15.0, "cylinders": 4.0, "displacement": 121.0, "weight": 2670.0}
+test53_peugeot_504_(sw)	{"horsepower": 87.0, "acceleration": 19.5, "cylinders": 4.0, "displacement": 120.0, "weight": 2979.0}
+test54_chevroelt_chevelle_malibu	{"horsepower": 105.0, "acceleration": 18.5, "cylinders": 6.0, "displacement": 250.0, "weight": 3897.0}
+test55_opel_1900	{"horsepower": 90.0, "acceleration": 14.0, "cylinders": 4.0, "displacement": 116.0, "weight": 2123.0}
+test56_dodge_challenger_se	{"horsepower": 170.0, "acceleration": 10.0, "cylinders": 8.0, "displacement": 383.0, "weight": 3563.0}
+test57_vw_pickup	{"horsepower": 52.0, "acceleration": 24.6, "cylinders": 4.0, "displacement": 97.0, "weight": 2130.0}
+test58_peugeot_604sl	{"horsepower": 133.0, "acceleration": 15.8, "cylinders": 6.0, "displacement": 163.0, "weight": 3410.0}
+test59_mazda_glc_4	{"horsepower": 68.0, "acceleration": 16.0, "cylinders": 4.0, "displacement": 91.0, "weight": 1985.0}
+test60_audi_4000	{"horsepower": 78.0, "acceleration": 15.8, "cylinders": 4.0, "displacement": 97.0, "weight": 2188.0}
+test61_plymouth_duster	{"horsepower": 95.0, "acceleration": 16.5, "cylinders": 6.0, "displacement": 198.0, "weight": 3102.0}
+test62_dodge_magnum_xe	{"horsepower": 140.0, "acceleration": 13.7, "cylinders": 8.0, "displacement": 318.0, "weight": 4080.0}
+test63_buick_century_limited	{"horsepower": 110.0, "acceleration": 16.4, "cylinders": 6.0, "displacement": 181.0, "weight": 2945.0}
+test64_chevrolet_monte_carlo_s	{"horsepower": 145.0, "acceleration": 13.0, "cylinders": 8.0, "displacement": 350.0, "weight": 4082.0}
+test65_amc_matador	{"horsepower": 150.0, "acceleration": 11.5, "cylinders": 8.0, "displacement": 304.0, "weight": 3672.0}
+test66_honda_accord	{"horsepower": 75.0, "acceleration": 14.5, "cylinders": 4.0, "displacement": 107.0, "weight": 2205.0}
+test67_plymouth_volare	{"horsepower": 100.0, "acceleration": 17.2, "cylinders": 6.0, "displacement": 225.0, "weight": 3430.0}
+test68_ford_galaxie_500	{"horsepower": 198.0, "acceleration": 10.0, "cylinders": 8.0, "displacement": 429.0, "weight": 4341.0}
+test69_chevrolet_citation	{"horsepower": 110.0, "acceleration": 12.6, "cylinders": 6.0, "displacement": 173.0, "weight": 2725.0}
+test70_amc_ambassador_sst	{"horsepower": 150.0, "acceleration": 11.5, "cylinders": 8.0, "displacement": 304.0, "weight": 3672.0}
+test71_ford_thunderbird	{"horsepower": 149.0, "acceleration": 14.5, "cylinders": 8.0, "displacement": 351.0, "weight": 4335.0}
+test72_pontiac_phoenix	{"horsepower": 90.0, "acceleration": 13.2, "cylinders": 4.0, "displacement": 151.0, "weight": 2556.0}
+test73_vw_rabbit	{"horsepower": 76.0, "acceleration": 14.7, "cylinders": 4.0, "displacement": 98.0, "weight": 2144.0}
+test74_bmw_2002	{"horsepower": 113.0, "acceleration": 12.5, "cylinders": 4.0, "displacement": 121.0, "weight": 2234.0}
+test75_dodge_colt	{"horsepower": 105.0, "acceleration": 14.4, "cylinders": 4.0, "displacement": 156.0, "weight": 2800.0}
+test76_mercury_capri_2000	{"horsepower": 86.0, "acceleration": 14.0, "cylinders": 4.0, "displacement": 122.0, "weight": 2220.0}
+test77_ford_galaxie_500	{"horsepower": 153.0, "acceleration": 13.5, "cylinders": 8.0, "displacement": 351.0, "weight": 4154.0}
+test78_volkswagen_rabbit_custom_diesel	{"horsepower": 48.0, "acceleration": 21.5, "cylinders": 4.0, "displacement": 90.0, "weight": 1985.0}
+test79_dodge_aspen_se	{"horsepower": 100.0, "acceleration": 17.7, "cylinders": 6.0, "displacement": 225.0, "weight": 3651.0}
+test80_mazda_glc_deluxe	{"horsepower": 52.0, "acceleration": 19.4, "cylinders": 4.0, "displacement": 78.0, "weight": 1985.0}
+test81_mazda_glc_custom	{"horsepower": 68.0, "acceleration": 17.6, "cylinders": 4.0, "displacement": 91.0, "weight": 1970.0}
+test82_audi_100ls	{"horsepower": 91.0, "acceleration": 14.0, "cylinders": 4.0, "displacement": 114.0, "weight": 2582.0}
+test83_oldsmobile_delta_88_royale	{"horsepower": 160.0, "acceleration": 13.5, "cylinders": 8.0, "displacement": 350.0, "weight": 4456.0}
+test84_ford_gran_torino	{"horsepower": 137.0, "acceleration": 14.5, "cylinders": 8.0, "displacement": 302.0, "weight": 4042.0}
+test85_plymouth_cricket	{"horsepower": 70.0, "acceleration": 20.5, "cylinders": 4.0, "displacement": 91.0, "weight": 1955.0}
+test86_plymouth_fury_iii	{"horsepower": 150.0, "acceleration": 13.0, "cylinders": 8.0, "displacement": 318.0, "weight": 4096.0}
+test87_plymouth_horizon	{"horsepower": 70.0, "acceleration": 13.2, "cylinders": 4.0, "displacement": 105.0, "weight": 2200.0}
+test88_peugeot_504	{"horsepower": 88.0, "acceleration": 21.9, "cylinders": 4.0, "displacement": 120.0, "weight": 3270.0}
+test89_dodge_dart_custom	{"horsepower": 150.0, "acceleration": 11.0, "cylinders": 8.0, "displacement": 318.0, "weight": 3399.0}
+test90_pontiac_j2000_se_hatchback	{"horsepower": 85.0, "acceleration": 16.2, "cylinders": 4.0, "displacement": 112.0, "weight": 2575.0}
+test91_toyota_starlet	{"horsepower": 58.0, "acceleration": 16.9, "cylinders": 4.0, "displacement": 79.0, "weight": 1755.0}
+test92_mazda_glc_custom_l	{"horsepower": 68.0, "acceleration": 18.2, "cylinders": 4.0, "displacement": 91.0, "weight": 2025.0}
+test93_fiat_124_tc	{"horsepower": 75.0, "acceleration": 14.0, "cylinders": 4.0, "displacement": 116.0, "weight": 2246.0}
diff --git a/creg/test_data/auto-mpg.testresp b/creg/test_data/auto-mpg.testresp
new file mode 100644
index 00000000..4f2cad37
--- /dev/null
+++ b/creg/test_data/auto-mpg.testresp
@@ -0,0 +1,93 @@
+test1_fiat_124b	30.0
+test2_dodge_aspen	18.6
+test3_toyota_celica_gt_liftback	21.1
+test4_amc_matador	16.0
+test5_audi_5000s_(diesel)	36.4
+test6_datsun_310	37.2
+test7_chevrolet_woody	24.5
+test8_volkswagen_1131_deluxe_sedan	26.0
+test9_plymouth_satellite_sebring	18.0
+test10_amc_matador	15.5
+test11_chevrolet_chevette	29.0
+test12_buick_century_special	20.6
+test13_ford_escort_2h	29.9
+test14_ford_torino_500	19.0
+test15_dodge_aries_wagon_(sw)	25.8
+test16_plymouth_valiant	18.0
+test17_amc_pacer	19.0
+test18_honda_civic	24.0
+test19_ford_ltd	14.0
+test20_volkswagen_rabbit	29.0
+test21_honda_civic_1500_gl	44.6
+test22_chevrolet_impala	14.0
+test23_chevrolet_chevette	30.5
+test24_amc_concord	19.4
+test25_ford_pinto	23.0
+test26_ford_country_squire_(sw)	15.5
+test27_plymouth_valiant_custom	19.0
+test28_chevy_s-10	31.0
+test29_maxda_rx3	18.0
+test30_plymouth_sapporo	23.2
+test31_amc_hornet	22.5
+test32_chevrolet_caprice_classic	17.5
+test33_pontiac_sunbird_coupe	24.5
+test34_mercury_marquis_brougham	12.0
+test35_mercury_monarch_ghia	20.2
+test36_ford_country_squire_(sw)	13.0
+test37_audi_fox	29.0
+test38_triumph_tr7_coupe	35.0
+test39_dodge_d100	13.0
+test40_mercury_cougar_brougham	15.0
+test41_pontiac_phoenix_lj	19.2
+test42_vw_rabbit_custom	31.9
+test43_peugeot_504	25.0
+test44_datsun_310_gx	38.0
+test45_dodge_monaco_(sw)	12.0
+test46_chevrolet_monza_2+2	20.0
+test47_capri_ii	25.0
+test48_mazda_rx2_coupe	19.0
+test49_plymouth_fury	18.0
+test50_plymouth_fury_iii	14.0
+test51_dodge_st._regis	18.2
+test52_amc_spirit_dl	27.4
+test53_peugeot_504_(sw)	21.0
+test54_chevroelt_chevelle_malibu	16.0
+test55_opel_1900	28.0
+test56_dodge_challenger_se	15.0
+test57_vw_pickup	44.0
+test58_peugeot_604sl	16.2
+test59_mazda_glc_4	34.1
+test60_audi_4000	34.3
+test61_plymouth_duster	20.0
+test62_dodge_magnum_xe	17.5
+test63_buick_century_limited	25.0
+test64_chevrolet_monte_carlo_s	15.0
+test65_amc_matador	14.0
+test66_honda_accord	36.0
+test67_plymouth_volare	20.5
+test68_ford_galaxie_500	15.0
+test69_chevrolet_citation	23.5
+test70_amc_ambassador_sst	17.0
+test71_ford_thunderbird	16.0
+test72_pontiac_phoenix	33.5
+test73_vw_rabbit	41.5
+test74_bmw_2002	26.0
+test75_dodge_colt	27.9
+test76_mercury_capri_2000	23.0
+test77_ford_galaxie_500	14.0
+test78_volkswagen_rabbit_custom_diesel	43.1
+test79_dodge_aspen_se	20.0
+test80_mazda_glc_deluxe	32.8
+test81_mazda_glc_custom	31.0
+test82_audi_100ls	20.0
+test83_oldsmobile_delta_88_royale	12.0
+test84_ford_gran_torino	14.0
+test85_plymouth_cricket	26.0
+test86_plymouth_fury_iii	14.0
+test87_plymouth_horizon	34.2
+test88_peugeot_504	19.0
+test89_dodge_dart_custom	15.0
+test90_pontiac_j2000_se_hatchback	31.0
+test91_toyota_starlet	39.1
+test92_mazda_glc_custom_l	37.0
+test93_fiat_124_tc	26.0
diff --git a/creg/test_data/auto-mpg.trainfeat b/creg/test_data/auto-mpg.trainfeat
new file mode 100644
index 00000000..20b87d3f
--- /dev/null
+++ b/creg/test_data/auto-mpg.trainfeat
@@ -0,0 +1,300 @@
+train1_buick_century_350	{"horsepower": 175.0, "acceleration": 13.0, "cylinders": 8.0, "displacement": 350.0, "weight": 4100.0}
+train2_audi_100_ls	{"horsepower": 90.0, "acceleration": 14.5, "cylinders": 4.0, "displacement": 107.0, "weight": 2430.0}
+train3_chrysler_newport_royal	{"horsepower": 190.0, "acceleration": 12.5, "cylinders": 8.0, "displacement": 400.0, "weight": 4422.0}
+train4_mercury_zephyr_6	{"horsepower": 85.0, "acceleration": 18.2, "cylinders": 6.0, "displacement": 200.0, "weight": 2990.0}
+train5_volkswagen_model_111	{"horsepower": 60.0, "acceleration": 19.0, "cylinders": 4.0, "displacement": 97.0, "weight": 1834.0}
+train6_dodge_monaco_brougham	{"horsepower": 145.0, "acceleration": 13.7, "cylinders": 8.0, "displacement": 318.0, "weight": 4140.0}
+train7_mercedes-benz_240d	{"horsepower": 67.0, "acceleration": 21.8, "cylinders": 4.0, "displacement": 146.0, "weight": 3250.0}
+train8_datsun_510_(sw)	{"horsepower": 92.0, "acceleration": 17.0, "cylinders": 4.0, "displacement": 97.0, "weight": 2288.0}
+train9_opel_manta	{"horsepower": 75.0, "acceleration": 15.5, "cylinders": 4.0, "displacement": 116.0, "weight": 2158.0}
+train10_renault_12_(sw)	{"horsepower": 69.0, "acceleration": 18.0, "cylinders": 4.0, "displacement": 96.0, "weight": 2189.0}
+train11_chevrolet_nova	{"horsepower": 100.0, "acceleration": 17.0, "cylinders": 6.0, "displacement": 250.0, "weight": 3336.0}
+train12_plymouth_arrow_gs	{"horsepower": 96.0, "acceleration": 15.5, "cylinders": 4.0, "displacement": 122.0, "weight": 2300.0}
+train13_toyota_mark_ii	{"horsepower": 108.0, "acceleration": 15.5, "cylinders": 6.0, "displacement": 156.0, "weight": 2930.0}
+train14_chevrolet_caprice_classic	{"horsepower": 150.0, "acceleration": 12.0, "cylinders": 8.0, "displacement": 400.0, "weight": 4464.0}
+train15_ford_maverick	{"horsepower": 88.0, "acceleration": 16.5, "cylinders": 6.0, "displacement": 250.0, "weight": 3021.0}
+train16_pontiac_lemans_v6	{"horsepower": 115.0, "acceleration": 15.4, "cylinders": 6.0, "displacement": 231.0, "weight": 3245.0}
+train17_ford_granada_gl	{"horsepower": 88.0, "acceleration": 17.1, "cylinders": 6.0, "displacement": 200.0, "weight": 3060.0}
+train18_chevrolet_monte_carlo_landau	{"horsepower": 170.0, "acceleration": 11.4, "cylinders": 8.0, "displacement": 350.0, "weight": 4165.0}
+train19_subaru	{"horsepower": 93.0, "acceleration": 15.5, "cylinders": 4.0, "displacement": 108.0, "weight": 2391.0}
+train20_volkswagen_411_(sw)	{"horsepower": 76.0, "acceleration": 18.0, "cylinders": 4.0, "displacement": 121.0, "weight": 2511.0}
+train21_chrysler_lebaron_salon	{"horsepower": 85.0, "acceleration": 16.6, "cylinders": 6.0, "displacement": 225.0, "weight": 3465.0}
+train22_volkswagen_jetta	{"horsepower": 74.0, "acceleration": 14.2, "cylinders": 4.0, "displacement": 105.0, "weight": 2190.0}
+train23_dodge_coronet_brougham	{"horsepower": 150.0, "acceleration": 13.0, "cylinders": 8.0, "displacement": 318.0, "weight": 4190.0}
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+train299_saab_99e	{"horsepower": 95.0, "acceleration": 17.5, "cylinders": 4.0, "displacement": 104.0, "weight": 2375.0}
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diff --git a/creg/test_data/auto-mpg.trainresp b/creg/test_data/auto-mpg.trainresp
new file mode 100644
index 00000000..ece7fa37
--- /dev/null
+++ b/creg/test_data/auto-mpg.trainresp
@@ -0,0 +1,300 @@
+train1_buick_century_350	13.0
+train2_audi_100_ls	24.0
+train3_chrysler_newport_royal	13.0
+train4_mercury_zephyr_6	19.8
+train5_volkswagen_model_111	27.0
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+train7_mercedes-benz_240d	30.0
+train8_datsun_510_(sw)	28.0
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+train12_plymouth_arrow_gs	25.5
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+train16_pontiac_lemans_v6	21.5
+train17_ford_granada_gl	20.2
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+train19_subaru	26.0
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+train28_nissan_stanza_xe	36.0
+train29_audi_5000	20.3
+train30_chevrolet_malibu	13.0
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+train32_datsun_b210_gx	39.4
+train33_volkswagen_dasher	26.0
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+train35_chrysler_lebaron_medallion	26.0
+train36_pontiac_catalina	16.0
+train37_toyota_tercel	37.7
+train38_datsun_f-10_hatchback	33.5
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+train44_bmw_320i	21.5
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+train47_ford_ltd	13.0
+train48_toyota_corolla_1200	31.0
+train49_amc_ambassador_brougham	13.0
+train50_ford_galaxie_500	14.0
+train51_amc_concord_d/l	18.1
+train52_amc_matador	18.0
+train53_toyota_corona	24.0
+train54_plymouth_reliant	27.2
+train55_ford_pinto	18.0
+train56_datsun_810	22.0
+train57_fiat_x1.9	31.0
+train58_mercury_zephyr	20.8
+train59_toyota_corolla_1600_(sw)	27.0
+train60_chevrolet_chevette	30.0
+train61_toyota_cressida	25.4
+train62_toyota_corolla	34.0
+train63_datsun_710	24.0
+train64_mercury_grand_marquis	16.5
+train65_plymouth_champ	39.0
+train66_datsun_200-sx	23.9
+train67_chevrolet_nova	18.0
+train68_hi_1200d	9.0
+train69_ford_country	12.0
+train70_plymouth_valiant	22.0
+train71_amc_gremlin	20.0
+train72_ford_pinto_runabout	21.0
+train73_chevrolet_monte_carlo_landau	19.2
+train74_amc_concord_dl_6	20.2
+train75_pontiac_firebird	19.0
+train76_chevrolet_cavalier_2-door	34.0
+train77_mercedes-benz_280s	16.5
+train78_dodge_d200	11.0
+train79_amc_hornet	18.0
+train80_plymouth_reliant	30.0
+train81_amc_hornet	19.0
+train82_toyota_corona_liftback	29.8
+train83_ford_maverick	15.0
+train84_cadillac_eldorado	23.0
+train85_mercury_monarch	15.0
+train86_buick_skylark	20.5
+train87_chevrolet_cavalier	28.0
+train88_chevrolet_vega	20.0
+train89_ford_torino	17.0
+train90_chevrolet_chevelle_malibu	18.0
+train91_toyota_corona	31.0
+train92_buick_opel_isuzu_deluxe	30.0
+train93_volvo_244dl	22.0
+train94_opel_1900	25.0
+train95_peugeot_304	30.0
+train96_toyota_celica_gt	32.0
+train97_buick_estate_wagon_(sw)	16.9
+train98_volvo_245	20.0
+train99_chevrolet_impala	11.0
+train100_chevrolet_bel_air	15.0
+train101_datsun_pl510	27.0
+train102_saab_99gle	21.6
+train103_renault_12tl	27.0
+train104_pontiac_catalina	14.0
+train105_subaru	32.3
+train106_chevrolet_chevette	32.1
+train107_saab_99le	25.0
+train108_amc_rebel_sst	16.0
+train109_ford_gran_torino	16.0
+train110_ford_mustang_ii_2+2	25.5
+train111_ford_pinto	26.0
+train112_toyota_corolla	32.4
+train113_toyota_carina	20.0
+train114_amc_hornet	18.0
+train115_plymouth_horizon_4	34.7
+train116_chevrolet_nova	22.0
+train117_fiat_128	24.0
+train118_dodge_coronet_custom	15.0
+train119_volkswagen_rabbit	29.5
+train120_chevrolet_camaro	27.0
+train121_ford_gran_torino_(sw)	13.0
+train122_subaru_dl	30.0
+train123_mazda_626	31.3
+train124_oldsmobile_cutlass_salon_brougham	23.9
+train125_volvo_144ea	19.0
+train126_plymouth_satellite	18.0
+train127_amc_gremlin	18.0
+train128_chevrolet_malibu_classic_(sw)	19.2
+train129_toyota_corolla	29.0
+train130_buick_skylark_320	15.0
+train131_toyota_corona_mark_ii	24.0
+train132_ford_gran_torino	14.5
+train133_dodge_colt	26.0
+train134_pontiac_ventura_sj	18.5
+train135_oldsmobile_cutlass_ls	26.6
+train136_toyouta_corona_mark_ii_(sw)	23.0
+train137_amc_gremlin	19.0
+train138_chevrolet_malibu	20.5
+train139_oldsmobile_starfire_sx	23.8
+train140_amc_ambassador_dpl	15.0
+train141_volkswagen_scirocco	31.5
+train142_plymouth_satellite_custom_(sw)	14.0
+train143_toyota_corolla_liftback	26.0
+train144_ford_fairmont	26.4
+train145_plymouth_fury_gran_sedan	14.0
+train146_buick_century_luxus_(sw)	13.0
+train147_ford_granada_ghia	18.0
+train148_dodge_charger_2.2	36.0
+train149_chevrolet_concours	17.5
+train150_toyota_corona	27.5
+train151_pontiac_grand_prix_lj	16.0
+train152_dodge_colt_m/m	33.5
+train153_pontiac_astro	23.0
+train154_amc_gremlin	21.0
+train155_fiat_strada_custom	37.3
+train156_toyota_corona_hardtop	24.0
+train157_datsun_b210	31.0
+train158_volkswagen_dasher	30.5
+train159_plymouth_duster	23.0
+train160_mazda_626	31.6
+train161_buick_lesabre_custom	13.0
+train162_chevrolet_monte_carlo	15.0
+train163_peugeot_505s_turbo_diesel	28.1
+train164_datsun_610	22.0
+train165_ford_granada	18.5
+train166_pontiac_grand_prix	16.0
+train167_cadillac_seville	16.5
+train168_amc_concord	24.3
+train169_ford_mustang_gl	27.0
+train170_amc_matador	15.0
+train171_ford_gran_torino_(sw)	14.0
+train172_datsun_510_hatchback	37.0
+train173_dodge_rampage	32.0
+train174_datsun_b-210	32.0
+train175_datsun_210_mpg	37.0
+train176_plymouth_horizon_tc3	34.5
+train177_ford_pinto	19.0
+train178_chrysler_new_yorker_brougham	13.0
+train179_chrysler_cordoba	15.5
+train180_oldsmobile_cutlass_salon_brougham	19.9
+train181_plymouth_satellite_custom	16.0
+train182_maxda_glc_deluxe	34.1
+train183_datsun_1200	35.0
+train184_ford_pinto	26.5
+train185_volkswagen_rabbit_l	36.0
+train186_audi_100ls	23.0
+train187_chevrolet_citation	28.8
+train188_buick_electra_225_custom	12.0
+train189_datsun_200sx	32.9
+train190_dodge_colt_hatchback_custom	35.7
+train191_honda_accord_lx	29.5
+train192_plymouth_custom_suburb	13.0
+train193_toyota_mark_ii	20.0
+train194_oldsmobile_omega_brougham	26.8
+train195_ford_ltd_landau	17.6
+train196_chevy_c10	13.0
+train197_dodge_colt	28.0
+train198_oldsmobile_cutlass_supreme	17.0
+train199_ford_pinto_(sw)	22.0
+train200_chevrolet_vega	25.0
+train201_pontiac_catalina_brougham	14.0
+train202_ford_futura	18.1
+train203_honda_civic	33.0
+train204_ford_mustang	18.0
+train205_chevrolet_vega_(sw)	22.0
+train206_buick_century	17.0
+train207_dodge_aspen	19.1
+train208_subaru_dl	33.8
+train209_plymouth_fury_iii	15.0
+train210_fiat_128	29.0
+train211_volvo_264gl	17.0
+train212_dodge_aries_se	29.0
+train213_datsun_510	27.2
+train214_chevrolet_chevelle_malibu_classic	16.0
+train215_ford_ranger	28.0
+train216_vw_dasher_(diesel)	43.4
+train217_chevy_c20	10.0
+train218_buick_skyhawk	21.0
+train219_peugeot_504	23.0
+train220_ford_f250	10.0
+train221_dodge_diplomat	19.4
+train222_honda_civic_(auto)	32.0
+train223_chevrolet_caprice_classic	17.0
+train224_toyota_corolla_1200	32.0
+train225_plymouth_volare_premier_v8	13.0
+train226_opel_manta	26.0
+train227_mercedes_benz_300d	25.4
+train228_chevrolet_cavalier_wagon	27.0
+train229_vw_rabbit	29.0
+train230_toyota_corolla	32.2
+train231_buick_estate_wagon_(sw)	14.0
+train232_ford_f108	13.0
+train233_oldsmobile_omega	11.0
+train234_oldsmobile_cutlass_ciera_(diesel)	38.0
+train235_chevrolet_impala	14.0
+train236_volkswagen_dasher	25.0
+train237_ford_fairmont_futura	24.0
+train238_datsun_210	31.8
+train239_honda_accord_cvcc	31.5
+train240_mazda_glc	46.6
+train241_chevrolet_citation	28.0
+train242_datsun_810_maxima	24.2
+train243_ford_maverick	21.0
+train244_fiat_124_sport_coupe	26.0
+train245_chevrolet_vega	21.0
+train246_chevrolet_chevelle_malibu_classic	17.5
+train247_buick_skylark	26.6
+train248_renault_5_gtl	36.0
+train249_plymouth_duster	22.0
+train250_buick_regal_sport_coupe_(turbo)	17.7
+train251_mercury_lynx_l	36.0
+train252_dodge_aspen_6	20.6
+train253_oldsmobile_vista_cruiser	12.0
+train254_amc_pacer_d/l	17.5
+train255_ford_fairmont_4	22.3
+train256_chevrolet_chevelle_concours_(sw)	13.0
+train257_honda_accord	32.4
+train258_dodge_colt_hardtop	25.0
+train259_amc_hornet_sportabout_(sw)	18.0
+train260_toyota_corona	25.0
+train261_ford_fiesta	36.1
+train262_datsun_280-zx	32.7
+train263_chevrolet_impala	13.0
+train264_toyota_corolla	28.0
+train265_chevrolet_chevelle_malibu	17.0
+train266_volvo_diesel	30.7
+train267_pontiac_phoenix	27.0
+train268_dodge_colt_(sw)	28.0
+train269_vokswagen_rabbit	29.8
+train270_peugeot_504	27.2
+train271_chevrolet_vega_2300	28.0
+train272_ford_fairmont_(auto)	20.2
+train273_plymouth_grand_fury	16.0
+train274_plymouth_'cuda_340	14.0
+train275_ford_granada_l	22.0
+train276_volkswagen_rabbit_custom	29.0
+train277_honda_civic_cvcc	33.0
+train278_chevrolet_nova_custom	16.0
+train279_honda_civic_cvcc	36.1
+train280_volkswagen_type_3	23.0
+train281_toyota_corolla_tercel	38.1
+train282_datsun_pl510	27.0
+train283_ford_maverick	24.0
+train284_dodge_omni	30.9
+train285_plymouth_volare_custom	19.0
+train286_datsun_710	32.0
+train287_honda_civic_1300	35.1
+train288_saab_99le	24.0
+train289_honda_prelude	33.7
+train290_buick_skylark_limited	28.4
+train291_pontiac_catalina	14.0
+train292_mazda_rx-4	21.5
+train293_volkswagen_super_beetle	26.0
+train294_ford_fairmont_(man)	25.1
+train295_fiat_131	28.0
+train296_ford_escort_4w	34.4
+train297_plymouth_horizon_miser	38.0
+train298_ford_mustang_ii	13.0
+train299_saab_99e	25.0
+train300_fiat_124b	30.0
diff --git a/creg/test_data/iris.testfeat b/creg/test_data/iris.testfeat
new file mode 100644
index 00000000..f7528f81
--- /dev/null
+++ b/creg/test_data/iris.testfeat
@@ -0,0 +1,50 @@
+100	{"sepal-length": 4.9, "sepal-width": 2.5, "petal-length": 4.5, "petal-width": 1.7}
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diff --git a/creg/test_data/iris.testresp b/creg/test_data/iris.testresp
new file mode 100644
index 00000000..0952e4da
--- /dev/null
+++ b/creg/test_data/iris.testresp
@@ -0,0 +1,50 @@
+100	Iris-virginica
+101	Iris-virginica
+102	Iris-setosa
+103	Iris-setosa
+104	Iris-setosa
+105	Iris-setosa
+106	Iris-versicolor
+107	Iris-versicolor
+108	Iris-setosa
+109	Iris-versicolor
+110	Iris-versicolor
+111	Iris-virginica
+112	Iris-setosa
+113	Iris-versicolor
+114	Iris-setosa
+115	Iris-virginica
+116	Iris-setosa
+117	Iris-versicolor
+118	Iris-virginica
+119	Iris-virginica
+120	Iris-versicolor
+121	Iris-setosa
+122	Iris-setosa
+123	Iris-virginica
+124	Iris-versicolor
+125	Iris-versicolor
+126	Iris-versicolor
+127	Iris-setosa
+128	Iris-virginica
+129	Iris-virginica
+130	Iris-virginica
+131	Iris-versicolor
+132	Iris-versicolor
+133	Iris-versicolor
+134	Iris-setosa
+135	Iris-virginica
+136	Iris-virginica
+137	Iris-versicolor
+138	Iris-setosa
+139	Iris-virginica
+140	Iris-virginica
+141	Iris-virginica
+142	Iris-versicolor
+143	Iris-setosa
+144	Iris-setosa
+145	Iris-setosa
+146	Iris-versicolor
+147	Iris-virginica
+148	Iris-virginica
+149	Iris-virginica
diff --git a/creg/test_data/iris.trainfeat b/creg/test_data/iris.trainfeat
new file mode 100644
index 00000000..a930a446
--- /dev/null
+++ b/creg/test_data/iris.trainfeat
@@ -0,0 +1,100 @@
+0	{"sepal-length": 5.4, "sepal-width": 3.0, "petal-length": 4.5, "petal-width": 1.5}
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+33	{"sepal-length": 6.4, "sepal-width": 2.7, "petal-length": 5.3, "petal-width": 1.9}
+34	{"sepal-length": 5.8, "sepal-width": 4.0, "petal-length": 1.2, "petal-width": 0.2}
+35	{"sepal-length": 5.2, "sepal-width": 3.4, "petal-length": 1.4, "petal-width": 0.2}
+36	{"sepal-length": 7.6, "sepal-width": 3.0, "petal-length": 6.6, "petal-width": 2.1}
+37	{"sepal-length": 5.8, "sepal-width": 2.7, "petal-length": 5.1, "petal-width": 1.9}
+38	{"sepal-length": 6.0, "sepal-width": 2.2, "petal-length": 4.0, "petal-width": 1.0}
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+41	{"sepal-length": 6.1, "sepal-width": 2.6, "petal-length": 5.6, "petal-width": 1.4}
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+48	{"sepal-length": 4.9, "sepal-width": 3.1, "petal-length": 1.5, "petal-width": 0.1}
+49	{"sepal-length": 6.1, "sepal-width": 3.0, "petal-length": 4.9, "petal-width": 1.8}
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+91	{"sepal-length": 5.0, "sepal-width": 2.3, "petal-length": 3.3, "petal-width": 1.0}
+92	{"sepal-length": 6.9, "sepal-width": 3.1, "petal-length": 5.1, "petal-width": 2.3}
+93	{"sepal-length": 5.7, "sepal-width": 3.0, "petal-length": 4.2, "petal-width": 1.2}
+94	{"sepal-length": 5.1, "sepal-width": 3.8, "petal-length": 1.9, "petal-width": 0.4}
+95	{"sepal-length": 6.0, "sepal-width": 2.9, "petal-length": 4.5, "petal-width": 1.5}
+96	{"sepal-length": 4.8, "sepal-width": 3.4, "petal-length": 1.6, "petal-width": 0.2}
+97	{"sepal-length": 5.2, "sepal-width": 4.1, "petal-length": 1.5, "petal-width": 0.1}
+98	{"sepal-length": 5.6, "sepal-width": 2.9, "petal-length": 3.6, "petal-width": 1.3}
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diff --git a/creg/test_data/iris.trainresp b/creg/test_data/iris.trainresp
new file mode 100644
index 00000000..d77bc6a2
--- /dev/null
+++ b/creg/test_data/iris.trainresp
@@ -0,0 +1,100 @@
+0	Iris-versicolor
+1	Iris-setosa
+2	Iris-setosa
+3	Iris-versicolor
+4	Iris-virginica
+5	Iris-virginica
+6	Iris-versicolor
+7	Iris-virginica
+8	Iris-versicolor
+9	Iris-versicolor
+10	Iris-versicolor
+11	Iris-versicolor
+12	Iris-versicolor
+13	Iris-virginica
+14	Iris-setosa
+15	Iris-setosa
+16	Iris-virginica
+17	Iris-virginica
+18	Iris-setosa
+19	Iris-setosa
+20	Iris-versicolor
+21	Iris-virginica
+22	Iris-virginica
+23	Iris-setosa
+24	Iris-virginica
+25	Iris-setosa
+26	Iris-setosa
+27	Iris-setosa
+28	Iris-versicolor
+29	Iris-versicolor
+30	Iris-setosa
+31	Iris-versicolor
+32	Iris-setosa
+33	Iris-virginica
+34	Iris-setosa
+35	Iris-setosa
+36	Iris-virginica
+37	Iris-virginica
+38	Iris-versicolor
+39	Iris-virginica
+40	Iris-setosa
+41	Iris-virginica
+42	Iris-virginica
+43	Iris-virginica
+44	Iris-setosa
+45	Iris-virginica
+46	Iris-versicolor
+47	Iris-setosa
+48	Iris-setosa
+49	Iris-virginica
+50	Iris-virginica
+51	Iris-virginica
+52	Iris-versicolor
+53	Iris-versicolor
+54	Iris-setosa
+55	Iris-versicolor
+56	Iris-virginica
+57	Iris-setosa
+58	Iris-virginica
+59	Iris-setosa
+60	Iris-versicolor
+61	Iris-virginica
+62	Iris-versicolor
+63	Iris-virginica
+64	Iris-setosa
+65	Iris-virginica
+66	Iris-versicolor
+67	Iris-virginica
+68	Iris-setosa
+69	Iris-setosa
+70	Iris-versicolor
+71	Iris-setosa
+72	Iris-versicolor
+73	Iris-versicolor
+74	Iris-versicolor
+75	Iris-virginica
+76	Iris-versicolor
+77	Iris-setosa
+78	Iris-versicolor
+79	Iris-versicolor
+80	Iris-setosa
+81	Iris-setosa
+82	Iris-virginica
+83	Iris-virginica
+84	Iris-versicolor
+85	Iris-setosa
+86	Iris-virginica
+87	Iris-versicolor
+88	Iris-virginica
+89	Iris-setosa
+90	Iris-setosa
+91	Iris-versicolor
+92	Iris-virginica
+93	Iris-versicolor
+94	Iris-setosa
+95	Iris-versicolor
+96	Iris-setosa
+97	Iris-setosa
+98	Iris-versicolor
+99	Iris-versicolor