datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,02 0:30:00,24 ,       0,225.0074,15.65075,45.47413
sgpcmbeC1.c1,1999,02 1:30:00,26 ,       0,331.8005,31.62527,75.15589
sgpcmbeC1.c1,1999,02 2:30:00,26 ,  0.0255,340.5132, 29.6422,70.48213
sgpcmbeC1.c1,1999,02 3:30:00,26 ,       0,127.2475,16.93106,27.75203
sgpcmbeC1.c1,1999,02 4:30:00,26 , 0.01759, 130.377,18.78574,32.15767
sgpcmbeC1.c1,1999,02 5:30:00,26 ,       0,527.3438,44.43568,116.0756
sgpcmbeC1.c1,1999,02 6:30:00,26 ,0.013836,210.0366,24.81343, 47.4723
sgpcmbeC1.c1,1999,02 7:30:00,24 ,       0,112.6019,18.43633,36.19551
sgpcmbeC1.c1,1999,02 8:30:00,24 ,       0,171.3054,25.88495,44.73735
sgpcmbeC1.c1,1999,02 9:30:00,25 ,       0,215.3114,22.98749,50.62128
sgpcmbeC1.c1,1999,0210:30:00,25 ,       0,131.6308,18.48229,38.21041
sgpcmbeC1.c1,1999,0211:30:00,25 ,0.000061,161.9919,13.90712,34.60405
sgpcmbeC1.c1,1999,0212:30:00,24 ,0.006001,42.27621,7.114586,11.51107
sgpcmbeC1.c1,1999,0213:30:00,22 ,0.009905,105.7531,10.81142,24.80227
sgpcmbeC1.c1,1999,0214:30:00,21 ,       0,245.2366,23.07037,57.20316
sgpcmbeC1.c1,1999,0215:30:00,20 , 0.20304,103.1004,12.05577,23.54512
sgpcmbeC1.c1,1999,0216:30:00,21 ,       0, 147.181,17.94405,35.04751
sgpcmbeC1.c1,1999,0217:30:00,21 ,0.319721, 305.425,25.74077,66.04196
sgpcmbeC1.c1,1999,0218:30:00,26 ,0.212828, 259.902,24.30667,54.11456
sgpcmbeC1.c1,1999,0219:30:00,26 ,0.032077,  153.56,16.36053, 34.7864
sgpcmbeC1.c1,1999,0220:30:00,26 ,0.000791,168.6144,13.79611,33.75027
sgpcmbeC1.c1,1999,0221:30:00,26 ,0.002138,787.0407,37.19899,153.4488
sgpcmbeC1.c1,1999,0222:30:00,26 ,0.000212,415.7468,23.93261,81.19744
sgpcmbeC1.c1,1999,0223:30:00,25 ,       0, 237.577,15.78276,47.07056