datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,11 0:30:00,28 ,       0, 0.49374,0.017634,0.093308
sgpcmbeC1.c1,2002,11 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,11 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,11 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,11 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,11 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,11 6:30:00,30 ,       0,0.015097,0.000532,0.002755
sgpcmbeC1.c1,2002,11 7:30:00,30 ,0.042135,38.48085, 16.4117,12.16553
sgpcmbeC1.c1,2002,11 8:30:00,30 ,   0.074,91.50074,40.15884,23.03624
sgpcmbeC1.c1,2002,11 9:30:00,30 ,0.124355,120.8216,42.77913,27.03318
sgpcmbeC1.c1,2002,1110:30:00,30 ,0.095906,224.2529,54.12572,56.01935
sgpcmbeC1.c1,2002,1111:30:00,30 ,0.353139,122.7468, 31.5749, 39.5306
sgpcmbeC1.c1,2002,1112:30:00,30 ,0.262646,206.8375,35.17454,59.75013
sgpcmbeC1.c1,2002,1113:30:00,30 ,0.205128,231.7162,48.08472, 58.1458
sgpcmbeC1.c1,2002,1114:30:00,30 ,0.096734,164.8804,40.92454, 34.1945
sgpcmbeC1.c1,2002,1115:30:00,30 ,0.137555, 114.948,43.79575,25.43656
sgpcmbeC1.c1,2002,1116:30:00,30 ,       0,58.39701,34.36829,17.19899
sgpcmbeC1.c1,2002,1117:30:00,30 ,       0,9.876003,3.610622,3.133283
sgpcmbeC1.c1,2002,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1119:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1120:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1121:30:00,29 ,       0,2.407533,0.083018,0.447068
sgpcmbeC1.c1,2002,1122:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1123:30:00,28 ,       0,       0,       0,       0