datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,02 0:30:00,25 ,       0,203.1683,16.03706,43.03397
sgpcmbeC1.c1,1999,02 1:30:00,25 ,       0,147.7617,15.73513,38.27757
sgpcmbeC1.c1,1999,02 2:30:00,26 ,       0, 273.608,24.17821, 58.0208
sgpcmbeC1.c1,1999,02 3:30:00,26 ,       0,113.6674,13.51171,23.62582
sgpcmbeC1.c1,1999,02 4:30:00,26 ,0.006941,117.8918,15.68828,28.71991
sgpcmbeC1.c1,1999,02 5:30:00,26 ,       0,485.5991,35.03625,100.3585
sgpcmbeC1.c1,1999,02 6:30:00,26 ,0.011107,168.7885, 19.6314,38.01022
sgpcmbeC1.c1,1999,02 7:30:00,25 ,       0,109.7157,15.30965, 29.1238
sgpcmbeC1.c1,1999,02 8:30:00,25 ,       0,151.5715,22.04718,40.83601
sgpcmbeC1.c1,1999,02 9:30:00,25 ,       0,190.5189,22.43895,48.97212
sgpcmbeC1.c1,1999,0210:30:00,26 ,       0,114.1504,16.37608,33.99987
sgpcmbeC1.c1,1999,0211:30:00,25 ,       0,127.0093,12.10016,29.06721
sgpcmbeC1.c1,1999,0212:30:00,24 ,       0,31.22045,5.718337,8.972424
sgpcmbeC1.c1,1999,0213:30:00,22 ,0.012397,72.08175,8.244107,17.96288
sgpcmbeC1.c1,1999,0214:30:00,21 ,       0, 215.038,18.55221,48.34319
sgpcmbeC1.c1,1999,0215:30:00,20 ,0.183506, 86.2978,9.241124, 19.3043
sgpcmbeC1.c1,1999,0216:30:00,21 ,       0,105.7019,13.73081,25.84877
sgpcmbeC1.c1,1999,0217:30:00,21 ,0.351731,226.0799,19.78553,48.96348
sgpcmbeC1.c1,1999,0218:30:00,26 ,0.155789,199.5295,16.77313, 39.8849
sgpcmbeC1.c1,1999,0219:30:00,26 ,0.029671, 124.223,13.76363,28.86372
sgpcmbeC1.c1,1999,0220:30:00,26 ,       0,221.4534,13.85651,43.01393
sgpcmbeC1.c1,1999,0221:30:00,26 ,       0, 746.713,34.04906,145.6838
sgpcmbeC1.c1,1999,0222:30:00,26 ,       0,475.3603,24.12434,92.70993
sgpcmbeC1.c1,1999,0223:30:00,25 ,       0,211.2211,12.77501,41.67424