datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,03 0:30:00,31 ,       0,0.675471,0.082898,0.161505
sgpcmbeC1.c1,2005,03 1:30:00,31 ,       0,0.738734,0.055193,0.152806
sgpcmbeC1.c1,2005,03 2:30:00,31 ,       0,0.479123,0.059879,0.141658
sgpcmbeC1.c1,2005,03 3:30:00,31 ,       0,0.398142,0.035752,0.095232
sgpcmbeC1.c1,2005,03 4:30:00,31 ,       0,0.064492,0.002713, 0.01182
sgpcmbeC1.c1,2005,03 5:30:00,31 ,       0,0.050115,0.004015, 0.01162
sgpcmbeC1.c1,2005,03 6:30:00,31 ,       0,14.49486,  1.3155,3.410139
sgpcmbeC1.c1,2005,03 7:30:00,31 ,0.002846,159.5759,36.38278,40.17908
sgpcmbeC1.c1,2005,03 8:30:00,30 ,       0,322.6088,139.0547,123.8339
sgpcmbeC1.c1,2005,03 9:30:00,30 ,0.027512,525.3696,220.2653,206.1363
sgpcmbeC1.c1,2005,0310:30:00,30 ,0.264687,626.3897,319.4997,262.6283
sgpcmbeC1.c1,2005,0311:30:00,30 ,0.240082,740.4194,397.2145,292.9825
sgpcmbeC1.c1,2005,0312:30:00,30 ,0.011688,769.4625,416.3018, 300.286
sgpcmbeC1.c1,2005,0313:30:00,30 ,0.123596,813.9216,397.2196,279.4053
sgpcmbeC1.c1,2005,0314:30:00,31 ,0.168266,686.8821,336.5818, 248.164
sgpcmbeC1.c1,2005,0315:30:00,31 ,0.030678,513.8288,259.1077, 196.092
sgpcmbeC1.c1,2005,0316:30:00,31 ,0.022057,362.7176,155.1271,138.8207
sgpcmbeC1.c1,2005,0317:30:00,31 ,       0,159.6985,59.10922,54.84053
sgpcmbeC1.c1,2005,0318:30:00,31 ,       0,18.08589,3.700419, 4.94165
sgpcmbeC1.c1,2005,0319:30:00,31 ,       0,0.650099,0.045348,0.120593
sgpcmbeC1.c1,2005,0320:30:00,31 ,       0,0.392808,0.043285,0.089314
sgpcmbeC1.c1,2005,0321:30:00,31 ,       0,0.325522,0.040877,0.081554
sgpcmbeC1.c1,2005,0322:30:00,31 ,       0,0.535461,0.055066,0.129615
sgpcmbeC1.c1,2005,0323:30:00,31 ,       0,0.483064,0.085561,0.151851