datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,04 0:30:00,24 ,0.590121,3.182882,1.752909,0.772827
sgpcmbeC1.c1,2001,04 1:30:00,23 ,0.619674,3.380255,1.711512,0.759812
sgpcmbeC1.c1,2001,04 2:30:00,20 ,0.694265,3.270585, 1.77605,0.760089
sgpcmbeC1.c1,2001,04 3:30:00,20 ,0.744351,3.189877,1.746395,0.752107
sgpcmbeC1.c1,2001,04 4:30:00,21 ,0.616148,3.181453,1.729158,0.732421
sgpcmbeC1.c1,2001,04 5:30:00,20 ,0.616571,2.990915,1.701297,0.738221
sgpcmbeC1.c1,2001,04 6:30:00,20 ,0.613836,3.173486,1.726034,0.774374
sgpcmbeC1.c1,2001,04 7:30:00,20 ,0.636187,3.382424, 1.76325,0.831216
sgpcmbeC1.c1,2001,04 8:30:00,25 ,0.666421,3.827596,1.871541,  0.9318
sgpcmbeC1.c1,2001,04 9:30:00,26 ,0.674118,4.180847,1.882782,0.997894
sgpcmbeC1.c1,2001,0410:30:00,26 ,0.614434,3.892055,1.889815,0.941035
sgpcmbeC1.c1,2001,0411:30:00,26 ,  0.6793,3.639269,1.933501,0.934139
sgpcmbeC1.c1,2001,0412:30:00,26 ,0.652021,3.797478,1.977047,0.938809
sgpcmbeC1.c1,2001,0413:30:00,26 ,0.694225,3.648186,2.002865,0.899164
sgpcmbeC1.c1,2001,0414:30:00,27 ,0.709712,3.743202, 2.01673,0.857689
sgpcmbeC1.c1,2001,0415:30:00,26 ,0.694053, 3.70131,1.934254,0.780446
sgpcmbeC1.c1,2001,0416:30:00,26 ,0.691673,3.456805,1.944257,0.750978
sgpcmbeC1.c1,2001,0417:30:00,26 ,0.670428,  3.3387,1.935641,0.727504
sgpcmbeC1.c1,2001,0418:30:00,26 ,0.671554,3.425589,1.978379,0.733135
sgpcmbeC1.c1,2001,0419:30:00,26 ,0.641718,3.577209,2.035751,  0.8214
sgpcmbeC1.c1,2001,0420:30:00,26 ,0.593746,3.435943,2.059067,0.880922
sgpcmbeC1.c1,2001,0421:30:00,26 ,0.574874,3.833984,2.060367,0.921333
sgpcmbeC1.c1,2001,0422:30:00,26 , 0.56866,3.542404,1.982144, 0.87715
sgpcmbeC1.c1,2001,0423:30:00,26 ,0.589889,3.386518,1.942537,0.855235