datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,12 0:30:00,28 ,0.048079,170.6569,11.75923,32.97247
sgpcmbeC1.c1,1999,12 1:30:00,26 ,0.114777,62.13475,4.775771,13.08729
sgpcmbeC1.c1,1999,12 2:30:00,26 ,       0,106.7166,  7.1662,21.57857
sgpcmbeC1.c1,1999,12 3:30:00,27 ,       0, 135.363,7.147933,26.08095
sgpcmbeC1.c1,1999,12 4:30:00,26 ,       0,52.51394,3.332202,10.14295
sgpcmbeC1.c1,1999,12 5:30:00,27 ,       0,51.90251,4.396549,11.61291
sgpcmbeC1.c1,1999,12 6:30:00,27 ,       0,187.5227,8.525948,35.81124
sgpcmbeC1.c1,1999,12 7:30:00,28 ,       0,72.16869,5.413964,14.10423
sgpcmbeC1.c1,1999,12 8:30:00,27 ,       0,236.7586,12.10086,45.28215
sgpcmbeC1.c1,1999,12 9:30:00,26 ,       0,63.67424,6.523165,15.29996
sgpcmbeC1.c1,1999,1210:30:00,27 ,       0,52.59286,4.910671,10.37152
sgpcmbeC1.c1,1999,1211:30:00,26 ,0.042661,309.7976,  17.943,60.84665
sgpcmbeC1.c1,1999,1212:30:00,28 ,0.050237,460.7995,21.45025,86.52095
sgpcmbeC1.c1,1999,1213:30:00,28 ,0.044228,134.1591,11.50506,27.48922
sgpcmbeC1.c1,1999,1214:30:00,28 ,0.130753, 222.234,13.58578,42.40225
sgpcmbeC1.c1,1999,1215:30:00,27 ,0.104195,63.64053,8.089994,16.41514
sgpcmbeC1.c1,1999,1216:30:00,28 ,0.239844,283.9055,18.07346,55.19078
sgpcmbeC1.c1,1999,1217:30:00,28 ,0.413806,283.7651,26.05083,72.61637
sgpcmbeC1.c1,1999,1218:30:00,28 ,0.254725, 186.029,16.58225,38.63785
sgpcmbeC1.c1,1999,1219:30:00,28 ,0.148871,200.4895,20.03123,51.54297
sgpcmbeC1.c1,1999,1220:30:00,28 ,       0,491.6883,28.34961,94.88966
sgpcmbeC1.c1,1999,1221:30:00,28 ,0.257156,269.6594,19.99313,58.18111
sgpcmbeC1.c1,1999,1222:30:00,29 ,0.079201,473.9233,27.39237,91.97617
sgpcmbeC1.c1,1999,1223:30:00,28 ,0.059178,138.6458,14.50635,33.85878