datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,04 0:30:00,30 ,       0,1.425816, 0.20949,0.319257
sgpcmbeC1.c1,1997,04 1:30:00,30 ,       0, 1.13318,0.206401,0.271372
sgpcmbeC1.c1,1997,04 2:30:00,30 ,       0, 0.70965, 0.15723,0.201959
sgpcmbeC1.c1,1997,04 3:30:00,30 ,       0,0.756237,0.149852,0.206493
sgpcmbeC1.c1,1997,04 4:30:00,30 ,       0,1.006833,0.113702,0.230088
sgpcmbeC1.c1,1997,04 5:30:00,30 ,       0,5.900837,1.170344,1.764354
sgpcmbeC1.c1,1997,04 6:30:00,30 ,1.973634,122.3807, 46.3496,37.86179
sgpcmbeC1.c1,1997,04 7:30:00,30 ,7.308188,318.6263,164.2162,105.5515
sgpcmbeC1.c1,1997,04 8:30:00,30 ,32.13474,536.5975,303.5424,175.8815
sgpcmbeC1.c1,1997,04 9:30:00,30 ,32.82937,722.0999,425.7995, 244.451
sgpcmbeC1.c1,1997,0410:30:00,30 ,91.08836,876.4418,521.8863,296.0097
sgpcmbeC1.c1,1997,0411:30:00,30 ,58.31629,943.3425,603.9688,324.5616
sgpcmbeC1.c1,1997,0412:30:00,30 ,33.03522,977.8967,621.8722,335.8887
sgpcmbeC1.c1,1997,0413:30:00,30 ,99.96751,959.2462,631.5902,307.3226
sgpcmbeC1.c1,1997,0414:30:00,30 ,33.99608, 851.196,541.4182,293.3454
sgpcmbeC1.c1,1997,0415:30:00,30 ,39.54386,750.4811,444.3412,259.6048
sgpcmbeC1.c1,1997,0416:30:00,30 ,20.44471,  528.47,309.1591,192.8585
sgpcmbeC1.c1,1997,0417:30:00,30 ,16.24221,317.0198,175.0197, 108.379
sgpcmbeC1.c1,1997,0418:30:00,30 ,3.073103,109.2618,49.56169,33.41667
sgpcmbeC1.c1,1997,0419:30:00,30 ,       0,4.454195, 1.35576,1.351964
sgpcmbeC1.c1,1997,0420:30:00,30 ,       0,1.404212,0.268411,0.340242
sgpcmbeC1.c1,1997,0421:30:00,30 ,       0,1.156211,0.294802,0.345318
sgpcmbeC1.c1,1997,0422:30:00,30 ,       0,1.486417,0.249749,0.352602
sgpcmbeC1.c1,1997,0423:30:00,30 ,       0,1.137484,0.209692, 0.28538