datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,01 0:30:00,29 ,       0,0.700937,0.089661,0.188347
sgpcmbeC1.c1,1999,01 1:30:00,27 ,       0,0.234588,0.018916,0.052759
sgpcmbeC1.c1,1999,01 2:30:00,27 ,       0,0.541018,0.035269,0.112409
sgpcmbeC1.c1,1999,01 3:30:00,29 ,       0,0.683616,0.071913,0.160777
sgpcmbeC1.c1,1999,01 4:30:00,29 ,       0,0.409926,0.030944,0.080461
sgpcmbeC1.c1,1999,01 5:30:00,31 ,       0,0.600096,0.041904, 0.12168
sgpcmbeC1.c1,1999,01 6:30:00,31 ,       0,0.879281,0.075929,0.168687
sgpcmbeC1.c1,1999,01 7:30:00,31 ,0.152919, 2.46404,0.752573,0.572188
sgpcmbeC1.c1,1999,01 8:30:00,31 ,0.067259,83.70995,22.98809,28.71768
sgpcmbeC1.c1,1999,01 9:30:00,31 ,0.145786,244.9768,  74.554,90.60933
sgpcmbeC1.c1,1999,0110:30:00,31 ,0.329193,384.1772,121.4187,144.6756
sgpcmbeC1.c1,1999,0111:30:00,31 ,0.034977,476.8577,140.7727,172.9424
sgpcmbeC1.c1,1999,0112:30:00,31 ,0.204611,497.9451,202.2911,186.4965
sgpcmbeC1.c1,1999,0113:30:00,31 ,0.059237,484.0687, 205.355,192.9297
sgpcmbeC1.c1,1999,0114:30:00,31 ,0.019707,425.8026,174.6291,162.6353
sgpcmbeC1.c1,1999,0115:30:00,31 ,0.028622,302.7175,122.4784,116.3723
sgpcmbeC1.c1,1999,0116:30:00,31 ,0.018387,145.1881,49.44121,48.33247
sgpcmbeC1.c1,1999,0117:30:00,31 ,0.306581,20.09543,3.490082,4.543736
sgpcmbeC1.c1,1999,0118:30:00,31 ,       0,0.641042,0.205331, 0.20878
sgpcmbeC1.c1,1999,0119:30:00,31 ,       0,0.525296,0.068798,0.121303
sgpcmbeC1.c1,1999,0120:30:00,31 ,       0,0.425249,0.074841,0.115682
sgpcmbeC1.c1,1999,0121:30:00,31 ,       0,0.877057,0.084899,0.203604
sgpcmbeC1.c1,1999,0122:30:00,29 ,       0,0.274256,0.043688,0.080423
sgpcmbeC1.c1,1999,0123:30:00,28 ,       0,0.549753,0.067235,0.128217