datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,01 0:30:00,29 ,0.129682,8.709422,2.181955,1.764278
sgpcmbeC1.c1,2002,01 1:30:00,29 ,0.152272,5.498003,1.958246,1.369887
sgpcmbeC1.c1,2002,01 2:30:00,29 ,0.133229,8.177016,2.137835,1.751973
sgpcmbeC1.c1,2002,01 3:30:00,29 ,0.151157,7.455435,1.649276,1.701053
sgpcmbeC1.c1,2002,01 4:30:00,29 ,0.181956,7.190119, 1.65323,1.592657
sgpcmbeC1.c1,2002,01 5:30:00,29 ,0.228377,3.211691,1.354542,0.774243
sgpcmbeC1.c1,2002,01 6:30:00,29 ,0.249691,6.258709,1.871985, 1.57693
sgpcmbeC1.c1,2002,01 7:30:00,29 ,0.351511,6.092031,2.182764,1.622712
sgpcmbeC1.c1,2002,01 8:30:00,29 ,0.628651, 8.67359,4.571064,2.340785
sgpcmbeC1.c1,2002,01 9:30:00,29 ,0.530927,11.02149,5.390757,2.963909
sgpcmbeC1.c1,2002,0110:30:00,29 ,0.721487,10.90039,5.759499,2.777901
sgpcmbeC1.c1,2002,0111:30:00,28 ,0.697363,12.18267,5.268297,2.411342
sgpcmbeC1.c1,2002,0112:30:00,29 ,0.554427,11.36764,4.523411,2.391828
sgpcmbeC1.c1,2002,0113:30:00,29 ,0.544374,7.614651,3.573712, 2.09141
sgpcmbeC1.c1,2002,0114:30:00,29 ,0.487073,10.23951,    3.37,2.158922
sgpcmbeC1.c1,2002,0115:30:00,29 ,0.216542,6.695227, 3.27089,1.353295
sgpcmbeC1.c1,2002,0116:30:00,29 ,0.204727, 8.54339,4.516997,2.079111
sgpcmbeC1.c1,2002,0117:30:00,29 ,0.318339,14.17305,6.860075,3.595184
sgpcmbeC1.c1,2002,0118:30:00,29 ,0.119709,11.09903,3.280875, 2.74501
sgpcmbeC1.c1,2002,0119:30:00,29 ,0.162762,6.651341,1.993419,1.392197
sgpcmbeC1.c1,2002,0120:30:00,29 , 0.16402,7.585766, 2.20075,1.821942
sgpcmbeC1.c1,2002,0121:30:00,29 ,0.237346, 5.53029,2.040874,1.381135
sgpcmbeC1.c1,2002,0122:30:00,29 ,0.063883,5.758384,1.632596,1.085893
sgpcmbeC1.c1,2002,0123:30:00,29 ,0.119382, 7.24755,1.667583,1.454837