datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,11 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 6:30:00,30 ,       0,0.240814,0.008869,0.043976
sgpcmbeC1.c1,1999,11 7:30:00,30 ,0.015188,43.30657,  21.064,10.48382
sgpcmbeC1.c1,1999,11 8:30:00,30 ,0.068497,56.18823,44.21475,11.19214
sgpcmbeC1.c1,1999,11 9:30:00,30 ,0.211754,70.85763,39.15629,14.53731
sgpcmbeC1.c1,1999,1110:30:00,30 , 0.26253,159.1006,38.81156,27.56665
sgpcmbeC1.c1,1999,1111:30:00,30 ,0.172072,189.8365,31.26755,43.34487
sgpcmbeC1.c1,1999,1112:30:00,30 ,0.172409,220.8641,31.21757,56.62999
sgpcmbeC1.c1,1999,1113:30:00,30 ,0.137021,214.4249,37.07341,42.18889
sgpcmbeC1.c1,1999,1114:30:00,30 ,0.326917, 144.441,43.75853,27.81254
sgpcmbeC1.c1,1999,1115:30:00,30 ,0.084188,73.72527, 43.8242,16.24598
sgpcmbeC1.c1,1999,1116:30:00,30 ,       0,61.85312,34.65676,15.74599
sgpcmbeC1.c1,1999,1117:30:00,30 ,       0,15.55557,3.454593,3.323984
sgpcmbeC1.c1,1999,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1120:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1121:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1122:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1123:30:00,29 ,       0,       0,       0,       0