datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,11 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,11 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,11 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,11 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,11 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,11 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,11 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,11 7:30:00,30 ,       0,       1,0.249227,0.402717
sgpcmbeC1.c1,2002,11 8:30:00,30 ,0.000425,       1,0.251989,0.392491
sgpcmbeC1.c1,2002,11 9:30:00,30 , 0.00054,       1,0.304521,0.428579
sgpcmbeC1.c1,2002,1110:30:00,30 ,0.000279,       1,0.308072,0.429569
sgpcmbeC1.c1,2002,1111:30:00,30 ,0.000642,       1,0.380203,0.457646
sgpcmbeC1.c1,2002,1112:30:00,30 ,0.000604,       1,0.415814,0.455464
sgpcmbeC1.c1,2002,1113:30:00,29 , 0.00019,       1,0.415052,0.434039
sgpcmbeC1.c1,2002,1114:30:00,30 ,0.000025,       1,0.275067,0.426428
sgpcmbeC1.c1,2002,1115:30:00,30 ,0.000021,0.999996, 0.24376,0.399319
sgpcmbeC1.c1,2002,1116:30:00,30 , 4.46E-6,0.997466,0.269402,0.406154
sgpcmbeC1.c1,2002,1117:30:00,2 ,0.045531,  0.9556,0.500566,0.643516
sgpcmbeC1.c1,2002,1118:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,1119:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,1120:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,1121:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,1122:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2002,1123:30:00,0 ,       .,       .,       .,       .