datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,01 0:30:00,30 ,0.516777, 3.46315,1.177527,0.594487
sgpcmbeC1.c1,1998,01 1:30:00,30 ,0.477962,2.595894,1.160784,0.497336
sgpcmbeC1.c1,1998,01 2:30:00,30 ,0.477691, 2.17791,1.174152, 0.47412
sgpcmbeC1.c1,1998,01 3:30:00,30 ,0.446281,2.154336,1.183736,0.481491
sgpcmbeC1.c1,1998,01 4:30:00,30 ,0.442008,2.186679,1.186467,0.477495
sgpcmbeC1.c1,1998,01 5:30:00,30 ,0.487815,2.193079,1.192152,0.469612
sgpcmbeC1.c1,1998,01 6:30:00,30 , 0.50497,2.207444,1.163573,0.458496
sgpcmbeC1.c1,1998,01 7:30:00,30 , 0.56334, 2.33564,1.178934, 0.48825
sgpcmbeC1.c1,1998,01 8:30:00,31 ,0.580637,2.369806,1.229413,0.547294
sgpcmbeC1.c1,1998,01 9:30:00,31 ,0.592649,2.321724,1.204481,0.502504
sgpcmbeC1.c1,1998,0110:30:00,30 ,  0.6208,3.351444,1.200754,0.574426
sgpcmbeC1.c1,1998,0111:30:00,30 ,0.677047,2.815986,1.197354,0.502004
sgpcmbeC1.c1,1998,0112:30:00,29 ,0.656067,3.194873,1.275531,0.563827
sgpcmbeC1.c1,1998,0113:30:00,28 ,0.630614,3.289654,1.281305,0.559443
sgpcmbeC1.c1,1998,0114:30:00,26 ,0.583995,2.540108,1.207165,0.416753
sgpcmbeC1.c1,1998,0115:30:00,24 ,0.522405,2.631152,1.218195,0.446849
sgpcmbeC1.c1,1998,0116:30:00,26 ,0.542212,2.541387,1.200334,0.435475
sgpcmbeC1.c1,1998,0117:30:00,30 ,0.553848,2.489063,1.183771,0.433668
sgpcmbeC1.c1,1998,0118:30:00,31 ,0.555981,3.193387,1.257533,0.575948
sgpcmbeC1.c1,1998,0119:30:00,31 ,0.554656,  2.4412,1.233671,0.523202
sgpcmbeC1.c1,1998,0120:30:00,31 ,0.532187,2.369398, 1.20448,0.522274
sgpcmbeC1.c1,1998,0121:30:00,31 , 0.55904, 2.44924,1.199647,0.550042
sgpcmbeC1.c1,1998,0122:30:00,31 ,0.555018,2.722041, 1.23292,0.613734
sgpcmbeC1.c1,1998,0123:30:00,31 ,0.534343,2.831167,1.239503,0.598271