datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,07 5:30:00,31 ,       0,24.00327,13.06156,5.951107
sgpcmbeC1.c1,1999,07 6:30:00,31 ,       0, 70.6595, 43.0382,16.68846
sgpcmbeC1.c1,1999,07 7:30:00,31 ,2.597069,101.6488,57.86088,21.35085
sgpcmbeC1.c1,1999,07 8:30:00,31 ,8.594729,198.2424,62.62754,31.75002
sgpcmbeC1.c1,1999,07 9:30:00,31 ,37.77776,189.1752,66.06334,36.84107
sgpcmbeC1.c1,1999,0710:30:00,31 ,24.45419,326.0111,70.46903, 67.8715
sgpcmbeC1.c1,1999,0711:30:00,31 , 15.1431,338.1305,71.57035,84.54017
sgpcmbeC1.c1,1999,0712:30:00,31 ,3.481975,394.6662,110.3254,109.4627
sgpcmbeC1.c1,1999,0713:30:00,31 ,13.71316, 357.301,137.3814,111.1907
sgpcmbeC1.c1,1999,0714:30:00,31 , 28.1996, 307.563,143.9543,108.0264
sgpcmbeC1.c1,1999,0715:30:00,31 ,42.24525,258.6705,110.1402, 67.5428
sgpcmbeC1.c1,1999,0716:30:00,31 ,48.14947,230.3846,96.60415,49.66928
sgpcmbeC1.c1,1999,0717:30:00,31 ,51.18763,161.4135,69.95194,22.99939
sgpcmbeC1.c1,1999,0718:30:00,31 ,16.26465,108.5108,54.47979,16.22537
sgpcmbeC1.c1,1999,0719:30:00,31 ,5.200549,31.31342,21.03053,6.494735
sgpcmbeC1.c1,1999,0720:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0723:30:00,31 ,       0,       0,       0,       0