datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,12 0:30:00,29 ,       0,0.170321,0.020608,0.042778
sgpcmbeC1.c1,2000,12 1:30:00,29 ,       0,0.112522, 0.01564,0.033593
sgpcmbeC1.c1,2000,12 2:30:00,29 ,       0,0.202136,0.026546,0.053564
sgpcmbeC1.c1,2000,12 3:30:00,30 ,       0,0.201223,0.022655,0.046292
sgpcmbeC1.c1,2000,12 4:30:00,30 ,       0,0.247215,0.023966,0.055567
sgpcmbeC1.c1,2000,12 5:30:00,30 ,       0, 0.18902,0.027444,0.056077
sgpcmbeC1.c1,2000,12 6:30:00,30 ,       0,0.055702,0.001884,0.010166
sgpcmbeC1.c1,2000,12 7:30:00,30 ,0.185617,6.143611,2.623098,1.647947
sgpcmbeC1.c1,2000,12 8:30:00,30 ,0.916751,29.97633,12.91647,7.481003
sgpcmbeC1.c1,2000,12 9:30:00,30 ,1.049341,34.76009, 14.8127,9.166314
sgpcmbeC1.c1,2000,1210:30:00,30 ,0.818792,55.37152,16.43291,15.28768
sgpcmbeC1.c1,2000,1211:30:00,30 ,0.987326,42.52305,15.27944,12.03073
sgpcmbeC1.c1,2000,1212:30:00,30 ,0.517606,40.96957,13.20997,11.71158
sgpcmbeC1.c1,2000,1213:30:00,29 ,0.872388,122.2512, 18.8504, 25.5576
sgpcmbeC1.c1,2000,1214:30:00,28 ,1.069956,125.2559,20.93077,25.66833
sgpcmbeC1.c1,2000,1215:30:00,28 ,1.248893,69.34622, 15.4489,13.19312
sgpcmbeC1.c1,2000,1216:30:00,29 ,       0,24.04465,10.93269,6.236416
sgpcmbeC1.c1,2000,1217:30:00,29 ,       0,13.89261,2.172799,3.031592
sgpcmbeC1.c1,2000,1218:30:00,29 ,       0, 0.07628, 0.00263,0.014165
sgpcmbeC1.c1,2000,1219:30:00,29 ,       0,0.176035,0.009652,0.037358
sgpcmbeC1.c1,2000,1220:30:00,29 ,       0,0.132547,0.020489,  0.0425
sgpcmbeC1.c1,2000,1221:30:00,29 ,       0,0.171072,0.017142,0.039828
sgpcmbeC1.c1,2000,1222:30:00,29 ,       0,0.251122,0.025327,0.055289
sgpcmbeC1.c1,2000,1223:30:00,29 ,       0,0.179083,0.037747,0.060938