datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,12 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 1:30:00,30 ,       0,0.104193,0.003473,0.019023
sgpcmbeC1.c1,2007,12 2:30:00,30 ,       0,0.161411, 0.00538,0.029469
sgpcmbeC1.c1,2007,12 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 4:30:00,30 ,       0,0.155881,0.005196, 0.02846
sgpcmbeC1.c1,2007,12 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 6:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,12 7:30:00,30 ,       0,8.674446,2.270533,2.424454
sgpcmbeC1.c1,2007,12 8:30:00,30 ,0.084839,35.65515,11.04917,10.20023
sgpcmbeC1.c1,2007,12 9:30:00,29 ,0.531458,34.44584,10.77311,9.763278
sgpcmbeC1.c1,2007,1210:30:00,29 ,0.921307,32.30941,9.796666,8.751337
sgpcmbeC1.c1,2007,1211:30:00,30 ,0.541565,40.16988,7.199835,8.096332
sgpcmbeC1.c1,2007,1212:30:00,30 ,0.432129,45.89723,8.899159,11.57286
sgpcmbeC1.c1,2007,1213:30:00,30 ,0.889042,40.80785,9.794807,9.744032
sgpcmbeC1.c1,2007,1214:30:00,30 ,0.902468,36.32254,11.40324,9.803248
sgpcmbeC1.c1,2007,1215:30:00,30 ,0.668324,41.69201,12.72056,10.49211
sgpcmbeC1.c1,2007,1216:30:00,30 ,1.023352,25.41337,9.408416,6.763937
sgpcmbeC1.c1,2007,1217:30:00,30 ,       0,4.316071,1.450799,1.396458
sgpcmbeC1.c1,2007,1218:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1219:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1220:30:00,29 ,       0,0.000828,0.000029,0.000154
sgpcmbeC1.c1,2007,1221:30:00,29 ,       0,0.102771,0.003592,0.019077
sgpcmbeC1.c1,2007,1222:30:00,29 ,       0,0.119923,0.007226,0.027225
sgpcmbeC1.c1,2007,1223:30:00,29 ,       0,0.428383,0.014772,0.079549