datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,02 0:30:00,29 ,0.274457,24.49318,3.305726,4.904263
sgpcmbeC1.c1,2000,02 1:30:00,29 ,0.145894,23.04548,3.832582, 5.77038
sgpcmbeC1.c1,2000,02 2:30:00,29 ,0.285902,6.363272,1.803286,1.615575
sgpcmbeC1.c1,2000,02 3:30:00,29 ,0.177269,22.52728,2.397205,4.135613
sgpcmbeC1.c1,2000,02 4:30:00,29 ,0.133141,29.32338,3.092887,5.695938
sgpcmbeC1.c1,2000,02 5:30:00,29 , 0.23751,25.17731,4.275198,6.467879
sgpcmbeC1.c1,2000,02 6:30:00,29 , 0.13018,16.26941, 3.23803, 4.20854
sgpcmbeC1.c1,2000,02 7:30:00,29 ,0.160692,30.28771,4.613444,7.093694
sgpcmbeC1.c1,2000,02 8:30:00,29 ,0.552181,20.57077, 3.74491,4.595352
sgpcmbeC1.c1,2000,02 9:30:00,29 ,0.428571,13.61974,3.239595,2.907973
sgpcmbeC1.c1,2000,0210:30:00,29 ,0.314202,15.57757,4.350352,  4.1575
sgpcmbeC1.c1,2000,0211:30:00,29 ,0.447573,25.08063,5.262821,5.573616
sgpcmbeC1.c1,2000,0212:30:00,29 ,0.840671,19.02573,4.161707,4.358637
sgpcmbeC1.c1,2000,0213:30:00,29 ,0.447647,17.16139,4.284052,4.371879
sgpcmbeC1.c1,2000,0214:30:00,29 ,0.698904,20.42334,4.500876,5.375278
sgpcmbeC1.c1,2000,0215:30:00,29 ,0.522976, 23.6416,4.488164,5.721969
sgpcmbeC1.c1,2000,0216:30:00,29 ,0.440373,19.85843,4.494686,5.709529
sgpcmbeC1.c1,2000,0217:30:00,29 ,0.347319, 27.2471,3.781749,5.061212
sgpcmbeC1.c1,2000,0218:30:00,29 ,0.287429,29.50538,2.947452, 5.23673
sgpcmbeC1.c1,2000,0219:30:00,29 ,0.346059,20.79503,2.960547,4.526045
sgpcmbeC1.c1,2000,0220:30:00,29 , 0.38214,19.89034,3.316292,5.010141
sgpcmbeC1.c1,2000,0221:30:00,29 ,0.267912,18.95852,4.490839,5.453706
sgpcmbeC1.c1,2000,0222:30:00,29 ,0.330943,17.20992,3.184271,3.969368
sgpcmbeC1.c1,2000,0223:30:00,29 ,0.183711,24.28193,4.014963,6.338869