datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,02 0:30:00,26 ,       0,0.112466,0.004326,0.022056
sgpcmbeC1.c1,1999,02 1:30:00,25 ,       0,0.056719,0.002269,0.011344
sgpcmbeC1.c1,1999,02 2:30:00,23 ,       0,0.048278,0.002169,0.010057
sgpcmbeC1.c1,1999,02 3:30:00,25 ,       0,0.101361,0.005889,  0.0219
sgpcmbeC1.c1,1999,02 4:30:00,26 ,       0,0.104232,0.005865, 0.02218
sgpcmbeC1.c1,1999,02 5:30:00,26 ,       0,0.564601,0.027676,0.113644
sgpcmbeC1.c1,1999,02 6:30:00,26 ,       0,0.048277,0.001857,0.009468
sgpcmbeC1.c1,1999,02 7:30:00,26 ,       0,11.75122,5.201368,3.783957
sgpcmbeC1.c1,1999,02 8:30:00,26 ,0.874533,21.09994,9.367982,5.361091
sgpcmbeC1.c1,1999,02 9:30:00,26 ,0.867786,27.08643,10.56087,6.458096
sgpcmbeC1.c1,1999,0210:30:00,26 ,2.623918,28.29256,10.00342,5.771863
sgpcmbeC1.c1,1999,0211:30:00,26 ,4.102981,37.47059,12.43327,11.68668
sgpcmbeC1.c1,1999,0212:30:00,26 ,0.544066,46.96503,14.39031,16.13664
sgpcmbeC1.c1,1999,0213:30:00,26 ,2.236054,46.09327,14.35844,13.75128
sgpcmbeC1.c1,1999,0214:30:00,26 ,2.144146,41.43813,13.63155,11.92009
sgpcmbeC1.c1,1999,0215:30:00,26 ,0.907919,37.37136,14.56196, 10.3989
sgpcmbeC1.c1,1999,0216:30:00,26 ,0.388601,24.97583,13.25167,5.898778
sgpcmbeC1.c1,1999,0217:30:00,26 ,0.998597,15.87997,9.658461,4.246077
sgpcmbeC1.c1,1999,0218:30:00,26 ,       0,3.271038,0.899568,1.146402
sgpcmbeC1.c1,1999,0219:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0220:30:00,26 ,       0,0.089911,0.003458,0.017633
sgpcmbeC1.c1,1999,0221:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0222:30:00,26 ,       0,0.006429,0.000247,0.001261
sgpcmbeC1.c1,1999,0223:30:00,26 ,       0,0.134469,0.005172,0.026372