datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,12 0:30:00,31 ,       0,0.054925,0.003762,0.013397
sgpcmbeC1.c1,2001,12 1:30:00,31 ,       0,0.180671,0.013059,0.044109
sgpcmbeC1.c1,2001,12 2:30:00,31 ,       0,0.410961,0.033356,0.081276
sgpcmbeC1.c1,2001,12 3:30:00,31 ,       0,0.222615,0.028046, 0.06637
sgpcmbeC1.c1,2001,12 4:30:00,31 ,       0,0.232905,0.022724,0.058916
sgpcmbeC1.c1,2001,12 5:30:00,31 ,       0,0.110696,0.008348,0.026742
sgpcmbeC1.c1,2001,12 6:30:00,31 ,       0,0.087606,0.002826,0.015734
sgpcmbeC1.c1,2001,12 7:30:00,31 ,       0,5.739618,2.269475,1.705738
sgpcmbeC1.c1,2001,12 8:30:00,31 ,0.127246,16.25549,8.839357,4.705937
sgpcmbeC1.c1,2001,12 9:30:00,30 ,0.443429,26.75946,10.86852,6.771083
sgpcmbeC1.c1,2001,1210:30:00,31 ,0.949329,28.98331,10.88065,8.079696
sgpcmbeC1.c1,2001,1211:30:00,31 ,0.773663,30.88906,8.008007,7.468848
sgpcmbeC1.c1,2001,1212:30:00,31 ,0.286069,17.77429,5.635075,6.064016
sgpcmbeC1.c1,2001,1213:30:00,30 ,0.599212,32.45936,7.111182,7.277389
sgpcmbeC1.c1,2001,1214:30:00,31 ,0.820694,21.56716,8.107271,5.152504
sgpcmbeC1.c1,2001,1215:30:00,31 ,0.399558,24.23471,10.60261,6.937116
sgpcmbeC1.c1,2001,1216:30:00,31 , 0.59682,21.55237,9.106564, 4.54923
sgpcmbeC1.c1,2001,1217:30:00,31 ,       0,2.648151,1.024707,0.810723
sgpcmbeC1.c1,2001,1218:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1219:30:00,31 ,       0,0.010738,0.000346,0.001929
sgpcmbeC1.c1,2001,1220:30:00,31 ,       0, 0.11671,0.005428,0.021961
sgpcmbeC1.c1,2001,1221:30:00,31 ,       0,0.172984,0.008955,0.032515
sgpcmbeC1.c1,2001,1222:30:00,31 ,       0,0.113811,0.005183,0.021846
sgpcmbeC1.c1,2001,1223:30:00,31 ,       0,0.104008,0.012218,0.029158