datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,12 0:30:00,28 ,0.005285,694.6229, 42.1006,135.7881
sgpcmbeC1.c1,1999,12 1:30:00,26 ,  0.0135,143.7602,13.01296,38.37266
sgpcmbeC1.c1,1999,12 2:30:00,26 ,       0,1140.635,51.15342,223.1814
sgpcmbeC1.c1,1999,12 3:30:00,27 ,       0,1255.055,53.63689,240.9254
sgpcmbeC1.c1,1999,12 4:30:00,26 ,       0,105.0899,7.473037,21.68879
sgpcmbeC1.c1,1999,12 5:30:00,27 ,       0,945.4766, 39.8114,181.3106
sgpcmbeC1.c1,1999,12 6:30:00,27 ,       0,757.7665,32.76092,145.2197
sgpcmbeC1.c1,1999,12 7:30:00,28 ,       0,354.8174,18.90115,66.81458
sgpcmbeC1.c1,1999,12 8:30:00,27 ,       0,346.3152,20.95209,67.82491
sgpcmbeC1.c1,1999,12 9:30:00,26 ,       0,1374.785,62.74924,269.5987
sgpcmbeC1.c1,1999,1210:30:00,27 ,       0, 143.719,12.43136,33.56484
sgpcmbeC1.c1,1999,1211:30:00,26 ,0.005837,763.6772,42.65165,150.7017
sgpcmbeC1.c1,1999,1212:30:00,28 ,0.004618,1309.384,60.67588,247.9961
sgpcmbeC1.c1,1999,1213:30:00,28 ,0.005215, 931.755,49.64852,178.0568
sgpcmbeC1.c1,1999,1214:30:00,28 ,0.010973,1283.284, 64.7995,248.0197
sgpcmbeC1.c1,1999,1215:30:00,27 ,0.015211, 259.184,21.91638, 55.2807
sgpcmbeC1.c1,1999,1216:30:00,28 ,0.066099,1378.399,93.69142,283.4329
sgpcmbeC1.c1,1999,1217:30:00,28 ,0.108827,648.8666,67.47952,164.5572
sgpcmbeC1.c1,1999,1218:30:00,28 ,0.052125,392.8754,43.18002,99.93198
sgpcmbeC1.c1,1999,1219:30:00,28 ,0.011769,422.7217,53.11044,126.0342
sgpcmbeC1.c1,1999,1220:30:00,28 ,       0,868.0671,49.31525, 168.134
sgpcmbeC1.c1,1999,1221:30:00,28 , 0.07338,917.6183,48.77137,177.5611
sgpcmbeC1.c1,1999,1222:30:00,29 ,0.013647,754.9529,76.31841,200.9712
sgpcmbeC1.c1,1999,1223:30:00,28 ,0.006895,732.6263,54.34553, 162.218