datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,12 0:30:00,23 ,       0,0.279437,0.012149,0.058267
sgpcmbeC1.c1,1998,12 1:30:00,24 ,       0,0.203498,0.008479,0.041539
sgpcmbeC1.c1,1998,12 2:30:00,25 ,       0, 0.30724, 0.01229,0.061448
sgpcmbeC1.c1,1998,12 3:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,12 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,12 5:30:00,28 ,       0,0.594606,0.021236, 0.11237
sgpcmbeC1.c1,1998,12 6:30:00,29 ,       0,1.257595,0.043365, 0.23353
sgpcmbeC1.c1,1998,12 7:30:00,29 ,0.815483,11.31677,6.031562, 3.09533
sgpcmbeC1.c1,1998,12 8:30:00,29 ,1.670005, 29.7315,12.61475,8.234695
sgpcmbeC1.c1,1998,12 9:30:00,29 ,1.482009,39.23567, 13.3233,11.26751
sgpcmbeC1.c1,1998,1210:30:00,28 ,0.955749, 56.7879,18.90746, 17.4068
sgpcmbeC1.c1,1998,1211:30:00,29 ,0.501106,66.19951,18.47301,18.96974
sgpcmbeC1.c1,1998,1212:30:00,28 ,0.477457,53.44083,15.03554,16.82391
sgpcmbeC1.c1,1998,1213:30:00,27 , 0.59051,91.95599,18.61676,22.87019
sgpcmbeC1.c1,1998,1214:30:00,27 ,1.002798,33.73599,11.17294,10.06438
sgpcmbeC1.c1,1998,1215:30:00,27 ,2.136539,36.37301,9.610057,9.041581
sgpcmbeC1.c1,1998,1216:30:00,28 ,0.804175,37.58191, 14.8943,9.719745
sgpcmbeC1.c1,1998,1217:30:00,27 ,0.573229,7.872297,4.190615,1.815899
sgpcmbeC1.c1,1998,1218:30:00,27 ,       0, 0.07535,0.002791,0.014501
sgpcmbeC1.c1,1998,1219:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1220:30:00,25 ,       0,0.536364,0.021455,0.107273
sgpcmbeC1.c1,1998,1221:30:00,26 ,       0,0.970367,0.037322,0.190305
sgpcmbeC1.c1,1998,1222:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1223:30:00,25 ,       0,1.225269,0.049011,0.245054