datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,11 0:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 1:30:00,28 ,       0,0.033665,0.001202,0.006362
sgpcmbeC1.c1,2007,11 2:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 3:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 5:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 6:30:00,30 ,       0, 0.10487,0.009227,0.024045
sgpcmbeC1.c1,2007,11 7:30:00,30 ,0.006405,23.63935,11.64816, 6.38016
sgpcmbeC1.c1,2007,11 8:30:00,30 ,2.655938,72.45329,52.60073, 18.8905
sgpcmbeC1.c1,2007,11 9:30:00,30 ,7.616983,112.3368,87.97159,28.67294
sgpcmbeC1.c1,2007,1110:30:00,30 , 15.3623,138.7168,113.0252,35.01761
sgpcmbeC1.c1,2007,1111:30:00,30 ,38.74386,154.2216, 128.632,32.45785
sgpcmbeC1.c1,2007,1112:30:00,30 ,36.93678,156.7338,133.2215,31.21933
sgpcmbeC1.c1,2007,1113:30:00,30 ,34.11747,  146.43,119.2631,33.58015
sgpcmbeC1.c1,2007,1114:30:00,30 ,21.09522,123.4109,99.47636,30.17366
sgpcmbeC1.c1,2007,1115:30:00,30 ,5.877747, 88.7116,68.50609,22.62819
sgpcmbeC1.c1,2007,1116:30:00,30 ,1.937765,44.74469,28.13863,11.67697
sgpcmbeC1.c1,2007,1117:30:00,30 ,       0,9.148603,1.749109,1.941722
sgpcmbeC1.c1,2007,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1121:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1122:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1123:30:00,27 ,       0, 0.04889,0.001811,0.009409