datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,01 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,01 7:30:00,31 ,       0,4.460391,0.851001, 1.31997
sgpcmbeC1.c1,1999,01 8:30:00,31 ,0.029413, 54.5442, 15.6778,18.02805
sgpcmbeC1.c1,1999,01 9:30:00,31 ,0.065028, 89.6986, 25.1498,27.75045
sgpcmbeC1.c1,1999,0110:30:00,31 ,0.072688,159.0722,30.46809,36.98239
sgpcmbeC1.c1,1999,0111:30:00,31 ,0.024039,153.1119, 34.0866,45.21245
sgpcmbeC1.c1,1999,0112:30:00,31 ,0.060136,182.4459,55.54802,62.29441
sgpcmbeC1.c1,1999,0113:30:00,31 ,0.037408,186.3493,38.16471,47.24089
sgpcmbeC1.c1,1999,0114:30:00,31 , 0.02828,145.6592,41.81248,45.58955
sgpcmbeC1.c1,1999,0115:30:00,31 ,0.028259,73.08012,26.29811,23.09467
sgpcmbeC1.c1,1999,0116:30:00,31 ,0.027638,86.17416,26.21264,24.80329
sgpcmbeC1.c1,1999,0117:30:00,31 ,       0,21.54982,4.331807,5.561532
sgpcmbeC1.c1,1999,0118:30:00,31 ,       0,0.014649,0.000473,0.002631
sgpcmbeC1.c1,1999,0119:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0120:30:00,31 ,       0,0.107261, 0.00346,0.019265
sgpcmbeC1.c1,1999,0121:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0122:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0123:30:00,28 ,       0,       0,       0,       0