datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,01 0:30:00,27 ,       0,1211.361,73.77429,240.0528
sgpcmbeC1.c1,2001,01 1:30:00,25 ,       0,988.9112,65.01424,206.4674
sgpcmbeC1.c1,2001,01 2:30:00,25 ,       0,685.1494, 49.7568,144.0811
sgpcmbeC1.c1,2001,01 3:30:00,25 ,       0,505.2395,42.81151,110.8971
sgpcmbeC1.c1,2001,01 4:30:00,25 ,       0,517.4609,46.22265,115.1794
sgpcmbeC1.c1,2001,01 5:30:00,25 ,       0,807.1379,65.48254,173.3404
sgpcmbeC1.c1,2001,01 6:30:00,25 ,       0,926.3778,82.82048,250.6824
sgpcmbeC1.c1,2001,01 7:30:00,25 ,       0,1125.218,71.43495,241.6631
sgpcmbeC1.c1,2001,01 8:30:00,27 ,       0,696.8131,55.10637,172.4542
sgpcmbeC1.c1,2001,01 9:30:00,27 ,       0,276.3753,30.94194,72.03644
sgpcmbeC1.c1,2001,0110:30:00,28 ,       0,299.5347,26.94647,70.36917
sgpcmbeC1.c1,2001,0111:30:00,28 ,       0,261.5087,23.19722,54.66794
sgpcmbeC1.c1,2001,0112:30:00,27 ,       0,233.8337,25.10003,51.50569
sgpcmbeC1.c1,2001,0113:30:00,28 ,       0,334.1144,31.92957,75.82028
sgpcmbeC1.c1,2001,0114:30:00,28 ,       0,295.7844,27.59251,72.16188
sgpcmbeC1.c1,2001,0115:30:00,27 ,       0,214.8851,23.29653,52.88246
sgpcmbeC1.c1,2001,0116:30:00,27 ,       0, 265.319,24.80717,56.44531
sgpcmbeC1.c1,2001,0117:30:00,27 ,       0,432.2594,31.91014, 84.7316
sgpcmbeC1.c1,2001,0118:30:00,26 ,       0,794.3647,59.98346,166.8251
sgpcmbeC1.c1,2001,0119:30:00,25 ,       0,1413.867,72.31403,282.0462
sgpcmbeC1.c1,2001,0120:30:00,26 ,       0,1461.012,93.51336,294.9328
sgpcmbeC1.c1,2001,0121:30:00,26 ,       0,1304.614,81.51286,263.0182
sgpcmbeC1.c1,2001,0122:30:00,25 ,       0,  277.96,27.69657,61.81662
sgpcmbeC1.c1,2001,0123:30:00,25 ,       0,501.2871,33.88473,101.2387