datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,10 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,10 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,10 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,10 3:30:00,30 ,       0,0.095353,0.003178,0.017409
sgpcmbeC1.c1,1999,10 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,10 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,10 6:30:00,30 ,       0,6.011706,1.991884,1.478684
sgpcmbeC1.c1,1999,10 7:30:00,30 , 1.19964,12.82601,9.705968, 3.59272
sgpcmbeC1.c1,1999,10 8:30:00,30 ,1.515857,25.50793,11.46889,5.245567
sgpcmbeC1.c1,1999,10 9:30:00,30 ,1.171025,32.30517,8.734059,6.009287
sgpcmbeC1.c1,1999,1010:30:00,30 ,2.285014,21.17402,  7.7033,5.613157
sgpcmbeC1.c1,1999,1011:30:00,30 ,1.259693,28.63317,7.456022,8.960743
sgpcmbeC1.c1,1999,1012:30:00,30 ,0.408894,32.82282,7.195206,9.867219
sgpcmbeC1.c1,1999,1013:30:00,30 ,2.494791, 49.3009,9.986633,12.43137
sgpcmbeC1.c1,1999,1014:30:00,30 ,  2.9824,39.72206,10.41912,8.914067
sgpcmbeC1.c1,1999,1015:30:00,30 ,2.713387,26.00756,10.76758,5.708712
sgpcmbeC1.c1,1999,1016:30:00,30 ,0.502035,16.68776,9.838552,3.602824
sgpcmbeC1.c1,1999,1017:30:00,30 ,0.253797,11.52975,7.264145,3.187396
sgpcmbeC1.c1,1999,1018:30:00,30 ,       0,0.816149,0.052867, 0.17448
sgpcmbeC1.c1,1999,1019:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1020:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1021:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1022:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1023:30:00,29 ,       0,       0,       0,       0