datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,03 0:30:00,31 ,0.061793,3.322799, 1.33628,0.931501
sgpcmbeC1.c1,2003,03 1:30:00,31 ,0.099297,5.870056,1.358596,1.051846
sgpcmbeC1.c1,2003,03 2:30:00,31 ,0.117464,4.149675, 1.34573,0.953428
sgpcmbeC1.c1,2003,03 3:30:00,31 ,0.196343,6.344434,1.407182,1.240846
sgpcmbeC1.c1,2003,03 4:30:00,31 ,0.072422, 5.20206,1.638289,1.239113
sgpcmbeC1.c1,2003,03 5:30:00,31 ,0.065729,  6.5218,1.620877,1.425482
sgpcmbeC1.c1,2003,03 6:30:00,31 ,0.049177,4.086594, 1.41732,0.978546
sgpcmbeC1.c1,2003,03 7:30:00,31 ,0.265101,10.51901,3.956258,2.867203
sgpcmbeC1.c1,2003,03 8:30:00,31 ,0.446539,12.19729,5.217331,3.388107
sgpcmbeC1.c1,2003,03 9:30:00,31 ,0.639021,11.15936,5.061256,3.241759
sgpcmbeC1.c1,2003,0310:30:00,31 ,  0.5741, 14.7737,5.764687,3.109405
sgpcmbeC1.c1,2003,0311:30:00,31 ,0.718247,13.23052,4.962779,2.679446
sgpcmbeC1.c1,2003,0312:30:00,31 ,0.498357,18.00797,4.906074,3.701187
sgpcmbeC1.c1,2003,0313:30:00,31 ,1.122641,13.75163,4.371194,2.993205
sgpcmbeC1.c1,2003,0314:30:00,31 ,1.127635,14.30339, 4.53888,3.160075
sgpcmbeC1.c1,2003,0315:30:00,31 ,0.767465,27.53074,5.498833,4.873346
sgpcmbeC1.c1,2003,0316:30:00,31 ,0.723527,12.09362,4.165252,2.202006
sgpcmbeC1.c1,2003,0317:30:00,31 ,0.427569,11.53433,5.819428,2.665714
sgpcmbeC1.c1,2003,0318:30:00,31 ,0.375238,11.83354,5.622181,3.157961
sgpcmbeC1.c1,2003,0319:30:00,31 , 0.24099,5.331402,2.519301,1.277075
sgpcmbeC1.c1,2003,0320:30:00,31 ,0.200258,5.724042,1.788264,1.199528
sgpcmbeC1.c1,2003,0321:30:00,31 ,0.252671,4.395313,1.674081,1.038242
sgpcmbeC1.c1,2003,0322:30:00,31 ,0.366076,4.429469,1.481056,0.974022
sgpcmbeC1.c1,2003,0323:30:00,31 ,0.298242,5.376808,  1.7025,1.173267