datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,02 0:30:00,29 ,0.368866,24.38278,3.280288,5.049257
sgpcmbeC1.c1,2004,02 1:30:00,29 , 0.28143,21.14887,3.359183,5.196104
sgpcmbeC1.c1,2004,02 2:30:00,29 ,0.294235,20.91138,3.204533,4.686694
sgpcmbeC1.c1,2004,02 3:30:00,29 ,0.365626,15.62989,2.738228,3.922736
sgpcmbeC1.c1,2004,02 4:30:00,29 ,0.361187, 36.1241,4.135632,7.872268
sgpcmbeC1.c1,2004,02 5:30:00,29 ,0.378384,17.75365,3.253099,4.738859
sgpcmbeC1.c1,2004,02 6:30:00,29 ,0.484496,31.59787,4.339662,6.592728
sgpcmbeC1.c1,2004,02 7:30:00,29 ,0.430577,24.04907,4.347942,6.067737
sgpcmbeC1.c1,2004,02 8:30:00,29 ,0.560981,14.31336,3.060477,3.560913
sgpcmbeC1.c1,2004,02 9:30:00,29 ,0.463877,16.80588,3.441128,3.858925
sgpcmbeC1.c1,2004,0210:30:00,29 ,0.464516,14.59538,2.924232,2.908548
sgpcmbeC1.c1,2004,0211:30:00,29 ,0.568867,14.63407,3.492842,3.356627
sgpcmbeC1.c1,2004,0212:30:00,29 ,0.451477,17.94339,4.096229,4.373985
sgpcmbeC1.c1,2004,0213:30:00,29 ,0.681707, 23.9422,4.895044,6.002437
sgpcmbeC1.c1,2004,0214:30:00,29 ,0.571463,21.24267,4.672183,5.514959
sgpcmbeC1.c1,2004,0215:30:00,29 ,0.467019,18.16941,4.015138,4.952174
sgpcmbeC1.c1,2004,0216:30:00,29 ,0.411563,20.72906,3.587374,4.229421
sgpcmbeC1.c1,2004,0217:30:00,29 ,0.409404,18.14359,3.772087, 4.65888
sgpcmbeC1.c1,2004,0218:30:00,29 ,0.557018,17.68228,3.298887,  3.9619
sgpcmbeC1.c1,2004,0219:30:00,29 ,0.460219, 16.1026,2.942957,3.458256
sgpcmbeC1.c1,2004,0220:30:00,29 ,0.496788,12.63336,3.401501,3.386937
sgpcmbeC1.c1,2004,0221:30:00,29 ,0.516028,21.71286,3.828137,4.659333
sgpcmbeC1.c1,2004,0222:30:00,29 ,0.532362,14.92541, 2.47691,3.476931
sgpcmbeC1.c1,2004,0223:30:00,29 ,0.400768,  22.403,2.623131,4.266485