datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,11 0:30:00,30 ,       0,53.87951,3.247656,9.942342
sgpcmbeC1.c1,1999,11 1:30:00,30 ,       0,18.65206,1.664739,3.342482
sgpcmbeC1.c1,1999,11 2:30:00,30 ,       0,93.36397,4.138805,16.87285
sgpcmbeC1.c1,1999,11 3:30:00,29 ,       0,24.48659,1.872247,4.463481
sgpcmbeC1.c1,1999,11 4:30:00,29 ,       0,40.70123,3.485889,9.582051
sgpcmbeC1.c1,1999,11 5:30:00,29 ,       0,87.48355,4.859018,16.76845
sgpcmbeC1.c1,1999,11 6:30:00,28 ,       0,90.32736,5.175808,  17.684
sgpcmbeC1.c1,1999,11 7:30:00,28 ,       0,117.3512,6.402216, 23.0216
sgpcmbeC1.c1,1999,11 8:30:00,29 ,       0,55.86106,3.149436,10.89056
sgpcmbeC1.c1,1999,11 9:30:00,29 ,       0,46.48924,2.710549,9.077497
sgpcmbeC1.c1,1999,1110:30:00,30 ,       0,104.9879,4.959308,19.25586
sgpcmbeC1.c1,1999,1111:30:00,29 ,       0,222.4644,9.762433,41.15726
sgpcmbeC1.c1,1999,1112:30:00,29 ,       0,239.2509,10.11029,44.23661
sgpcmbeC1.c1,1999,1113:30:00,28 ,       0,22.10982,2.163308,4.223114
sgpcmbeC1.c1,1999,1114:30:00,26 ,       0,31.65732,2.873267,6.895909
sgpcmbeC1.c1,1999,1115:30:00,25 ,       0, 226.133,15.01319,49.45658
sgpcmbeC1.c1,1999,1116:30:00,23 ,       0,113.9677,6.581032,23.57194
sgpcmbeC1.c1,1999,1117:30:00,17 ,       0, 34.4568, 3.24677,8.067892
sgpcmbeC1.c1,1999,1118:30:00,29 ,       0,68.98438,3.933311,12.77901
sgpcmbeC1.c1,1999,1119:30:00,29 ,       0,33.89467,2.130908,6.177241
sgpcmbeC1.c1,1999,1120:30:00,30 ,       0,  116.72,7.830061,23.65109
sgpcmbeC1.c1,1999,1121:30:00,29 ,       0,157.7974,9.542308,31.93223
sgpcmbeC1.c1,1999,1122:30:00,29 ,       0,113.5983,7.264381,22.49358
sgpcmbeC1.c1,1999,1123:30:00,30 ,       0,90.84248,5.128241,16.86783