datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,03 0:30:00,9 ,       0, 0.30315,0.033683, 0.10105
sgpcmbeC1.c1,1997,03 1:30:00,10 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,03 2:30:00,10 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,03 3:30:00,10 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,03 4:30:00,10 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,03 5:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,03 6:30:00,11 ,0.014242,17.42727,5.614597,6.397702
sgpcmbeC1.c1,1997,03 7:30:00,11 ,6.272896,164.7633, 101.716,50.81662
sgpcmbeC1.c1,1997,03 8:30:00,11 ,14.50183,375.1009,274.8181,101.5776
sgpcmbeC1.c1,1997,03 9:30:00,10 ,42.14508,571.6507,422.7374,180.6801
sgpcmbeC1.c1,1997,0310:30:00,10 ,95.65915,728.9769,558.9194,205.7018
sgpcmbeC1.c1,1997,0311:30:00,10 ,191.5821,833.0177, 632.549,242.9455
sgpcmbeC1.c1,1997,0312:30:00,10 ,210.6016,869.2119,651.2165, 254.101
sgpcmbeC1.c1,1997,0313:30:00,10 ,86.83975,832.9972,660.0648,235.3409
sgpcmbeC1.c1,1997,0314:30:00,10 ,81.76086,740.7828, 592.199,197.8006
sgpcmbeC1.c1,1997,0315:30:00,11 ,11.48013, 592.809,433.9078,193.7533
sgpcmbeC1.c1,1997,0316:30:00,11 , 4.34668,408.4847,294.9615,117.3209
sgpcmbeC1.c1,1997,0317:30:00,10 ,0.415749,201.7406,96.11917,86.33061
sgpcmbeC1.c1,1997,0318:30:00,10 ,0.015034, 31.8354, 11.1125,12.81634
sgpcmbeC1.c1,1997,0319:30:00,11 ,       0,0.008406,0.001411,0.003152
sgpcmbeC1.c1,1997,0320:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0321:30:00,11 ,       0,0.149987,0.018238,0.046261
sgpcmbeC1.c1,1997,0322:30:00,11 ,       0,0.125272,0.013222,0.037652
sgpcmbeC1.c1,1997,0323:30:00,8 ,       0,       0,       0,       0