datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,04 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,04 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,04 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,04 3:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,04 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,04 5:30:00,30 ,       0, 0.94849, 0.04968,0.179239
sgpcmbeC1.c1,2002,04 6:30:00,30 ,       0,79.90976,15.10927,22.29292
sgpcmbeC1.c1,2002,04 7:30:00,30 ,       0,271.8958,76.55398,90.52219
sgpcmbeC1.c1,2002,04 8:30:00,30 ,0.002411,474.5797,169.4819,181.3137
sgpcmbeC1.c1,2002,04 9:30:00,30 ,0.010719,653.0464,225.5925,262.3157
sgpcmbeC1.c1,2002,0410:30:00,30 ,0.040543,794.9531,307.6606,333.4484
sgpcmbeC1.c1,2002,0411:30:00,30 ,0.019363, 883.287,366.1876,363.9326
sgpcmbeC1.c1,2002,0412:30:00,30 ,0.059967,910.4817,423.6942,379.6985
sgpcmbeC1.c1,2002,0413:30:00,30 ,0.052101,875.4574,404.5361,373.2937
sgpcmbeC1.c1,2002,0414:30:00,30 ,       0,773.9489,374.6658,327.7515
sgpcmbeC1.c1,2002,0415:30:00,30 ,0.164368,630.2533,314.3401,258.2036
sgpcmbeC1.c1,2002,0416:30:00,30 ,0.001465,444.6147, 214.018,177.8181
sgpcmbeC1.c1,2002,0417:30:00,30 ,       0,238.4977,96.40129,85.56326
sgpcmbeC1.c1,2002,0418:30:00,30 ,       0,55.96633,18.90089,17.11539
sgpcmbeC1.c1,2002,0419:30:00,30 ,       0,1.070212,0.136386, 0.27353
sgpcmbeC1.c1,2002,0420:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0421:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0422:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0423:30:00,29 ,       0,       0,       0,       0