datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,02 0:30:00,24 ,       0,82.01882,6.854043,16.94166
sgpcmbeC1.c1,1999,02 1:30:00,26 ,       0,80.27462,8.997366,17.23442
sgpcmbeC1.c1,1999,02 2:30:00,26 ,0.192624,234.5369,17.14939,46.66165
sgpcmbeC1.c1,1999,02 3:30:00,26 ,       0, 67.5434, 9.17782,17.16964
sgpcmbeC1.c1,1999,02 4:30:00,26 ,0.080512,93.63317,12.44709,22.93857
sgpcmbeC1.c1,1999,02 5:30:00,26 ,       0,185.9275,14.21386,39.48454
sgpcmbeC1.c1,1999,02 6:30:00,26 ,0.118031,151.4128,17.78282,39.50398
sgpcmbeC1.c1,1999,02 7:30:00,24 ,       0,101.1306,9.305408,  21.222
sgpcmbeC1.c1,1999,02 8:30:00,24 ,       0,97.78259,11.82936,22.49018
sgpcmbeC1.c1,1999,02 9:30:00,25 ,       0,58.90815, 8.67297, 17.0681
sgpcmbeC1.c1,1999,0210:30:00,25 ,       0,105.6001,10.19448,22.87861
sgpcmbeC1.c1,1999,0211:30:00,25 ,0.000713,140.4131,10.60835,28.27299
sgpcmbeC1.c1,1999,0212:30:00,24 ,0.040879,36.36958,6.723226,10.75531
sgpcmbeC1.c1,1999,0213:30:00,22 ,0.107405,132.5912,11.22154,29.08976
sgpcmbeC1.c1,1999,0214:30:00,21 ,       0,115.8054,14.47501,31.47329
sgpcmbeC1.c1,1999,0215:30:00,20 ,0.524796,76.37991,8.357851,16.88534
sgpcmbeC1.c1,1999,0216:30:00,21 ,       0,75.50571, 8.84965,17.18305
sgpcmbeC1.c1,1999,0217:30:00,21 ,0.588768,100.0078,10.59036,22.02609
sgpcmbeC1.c1,1999,0218:30:00,26 ,0.517292,149.0933,13.70438,34.43305
sgpcmbeC1.c1,1999,0219:30:00,26 ,0.186164,104.9361,10.98187,23.37047
sgpcmbeC1.c1,1999,0220:30:00,26 ,0.006644,85.87772,8.920116,22.14554
sgpcmbeC1.c1,1999,0221:30:00,26 ,0.025119, 189.708,10.48563,36.99987
sgpcmbeC1.c1,1999,0222:30:00,26 ,0.002492,150.5159, 10.8837,30.27913
sgpcmbeC1.c1,1999,0223:30:00,25 ,       0,128.0008,8.275328,25.31032