datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,11 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 6:30:00,30 ,       0,1.014069,0.088884,0.229148
sgpcmbeC1.c1,2001,11 7:30:00,30 ,       0,47.94474,17.74079,12.75729
sgpcmbeC1.c1,2001,11 8:30:00,30 ,       0, 127.685,64.97151,30.37564
sgpcmbeC1.c1,2001,11 9:30:00,30 ,19.95611,250.3161,109.4748, 57.4898
sgpcmbeC1.c1,2001,1110:30:00,30 ,50.46749,307.0205,150.4435,  73.026
sgpcmbeC1.c1,2001,1111:30:00,30 ,59.52178,334.8595,167.6477,83.64462
sgpcmbeC1.c1,2001,1112:30:00,30 ,58.62246,400.2003,182.8877,96.51478
sgpcmbeC1.c1,2001,1113:30:00,30 ,53.38575,324.5215,163.3186,80.49651
sgpcmbeC1.c1,2001,1114:30:00,30 ,51.89592, 289.951,137.8254,63.91402
sgpcmbeC1.c1,2001,1115:30:00,30 ,44.17274,189.8635,103.4116,40.43101
sgpcmbeC1.c1,2001,1116:30:00,30 ,3.228752,91.94902,50.60415,17.79929
sgpcmbeC1.c1,2001,1117:30:00,30 ,       0,9.355138,4.135956,2.628168
sgpcmbeC1.c1,2001,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1121:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1122:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1123:30:00,27 ,       0,       0,       0,       0