datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,11 0:30:00,26 ,       0,1.536822,0.088551,0.331297
sgpcmbeC1.c1,2003,11 1:30:00,28 ,       0,0.807556,0.028841,0.152614
sgpcmbeC1.c1,2003,11 2:30:00,27 ,       0, 1.81594,0.067257,0.349478
sgpcmbeC1.c1,2003,11 3:30:00,28 ,       0,0.921518,0.084871,0.251609
sgpcmbeC1.c1,2003,11 4:30:00,28 ,       0,1.337782,0.089354,0.328932
sgpcmbeC1.c1,2003,11 5:30:00,29 ,       0,0.784326, 0.03854,0.156205
sgpcmbeC1.c1,2003,11 6:30:00,28 ,       0,0.755647,0.040827,0.158055
sgpcmbeC1.c1,2003,11 7:30:00,30 ,0.931657,41.28016, 17.8954, 11.0166
sgpcmbeC1.c1,2003,11 8:30:00,30 ,6.674868,103.3586,35.87703, 23.2803
sgpcmbeC1.c1,2003,11 9:30:00,30 ,4.442404, 95.5559,41.71797,23.30504
sgpcmbeC1.c1,2003,1110:30:00,30 ,8.362945, 152.556,46.78206,35.56811
sgpcmbeC1.c1,2003,1111:30:00,30 ,7.017894,131.8409,43.39421,39.52501
sgpcmbeC1.c1,2003,1112:30:00,30 ,3.977666,163.2433, 44.4543, 48.1097
sgpcmbeC1.c1,2003,1113:30:00,30 ,8.905329,158.5981,  44.865, 36.5703
sgpcmbeC1.c1,2003,1114:30:00,30 ,6.182656,167.5703,52.01495,40.31552
sgpcmbeC1.c1,2003,1115:30:00,30 ,2.373906,101.6584,41.18732,22.58954
sgpcmbeC1.c1,2003,1116:30:00,30 ,6.013032,73.53413,35.17811,18.41067
sgpcmbeC1.c1,2003,1117:30:00,30 ,       0,17.02708,5.572584,4.261438
sgpcmbeC1.c1,2003,1118:30:00,29 ,       0,1.020922,0.054259,0.212323
sgpcmbeC1.c1,2003,1119:30:00,29 ,       0,1.556262,0.139161,0.424184
sgpcmbeC1.c1,2003,1120:30:00,29 ,       0,1.289692,0.114497,0.346089
sgpcmbeC1.c1,2003,1121:30:00,29 ,       0,1.480521,0.092576,0.348132
sgpcmbeC1.c1,2003,1122:30:00,28 ,       0,1.177295,0.093481,0.287269
sgpcmbeC1.c1,2003,1123:30:00,27 ,       0,1.318877,0.080459, 0.29698