datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,07 0:30:00,29 ,       0,69.94104,6.781836,13.79291
sgpcmbeC1.c1,2002,07 1:30:00,30 ,       0,97.76295,9.413419,21.20151
sgpcmbeC1.c1,2002,07 2:30:00,30 ,       0,29.42138,5.179457,7.170784
sgpcmbeC1.c1,2002,07 3:30:00,30 ,       0, 56.1247,6.974279,11.29938
sgpcmbeC1.c1,2002,07 4:30:00,30 ,       0,124.1177,15.71557,31.68291
sgpcmbeC1.c1,2002,07 5:30:00,31 ,       0,109.7577,14.89804,29.16061
sgpcmbeC1.c1,2002,07 6:30:00,30 ,       0, 195.201,11.91681,35.96392
sgpcmbeC1.c1,2002,07 7:30:00,31 ,       0,183.5615,15.75369,37.96172
sgpcmbeC1.c1,2002,07 8:30:00,31 ,       0,209.5626,19.55073,41.90728
sgpcmbeC1.c1,2002,07 9:30:00,31 ,       0,163.3656,25.83829,43.23052
sgpcmbeC1.c1,2002,0710:30:00,31 ,       0,299.2443,27.01249,58.63199
sgpcmbeC1.c1,2002,0711:30:00,30 ,       0,73.03426,17.60535,21.23699
sgpcmbeC1.c1,2002,0712:30:00,30 ,       0,119.7204,22.70604,28.43708
sgpcmbeC1.c1,2002,0713:30:00,30 ,       0,119.8576,25.58148,32.12722
sgpcmbeC1.c1,2002,0714:30:00,30 ,       0,96.58449,21.25046,25.90904
sgpcmbeC1.c1,2002,0715:30:00,31 ,       0,177.1488,24.57528,42.20953
sgpcmbeC1.c1,2002,0716:30:00,31 ,       0,164.8094,22.44323,34.80952
sgpcmbeC1.c1,2002,0717:30:00,31 ,       0, 124.973,15.41455,28.13566
sgpcmbeC1.c1,2002,0718:30:00,30 ,       0,75.00443,10.29414,15.36825
sgpcmbeC1.c1,2002,0719:30:00,31 ,       0,87.56765,11.83745,20.79565
sgpcmbeC1.c1,2002,0720:30:00,31 ,       0,156.7504,16.06846,34.90269
sgpcmbeC1.c1,2002,0721:30:00,31 ,       0,115.7884,12.76183,28.93579
sgpcmbeC1.c1,2002,0722:30:00,31 ,       0,128.8576,11.07574,27.90886
sgpcmbeC1.c1,2002,0723:30:00,30 ,       0,107.6404,6.479989,19.73854