datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,01 0:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 1:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 2:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 3:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 4:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 6:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 7:30:00,29 ,0.002956,4.690057,1.340902,1.389748
sgpcmbeC1.c1,2000,01 8:30:00,29 ,0.045649,46.76214,22.18813,18.41304
sgpcmbeC1.c1,2000,01 9:30:00,29 ,0.059115,68.15067,32.10789, 21.8367
sgpcmbeC1.c1,2000,0110:30:00,29 ,0.135958,113.2995,36.98364, 32.9105
sgpcmbeC1.c1,2000,0111:30:00,29 ,0.073669,132.9793,36.52184,35.22457
sgpcmbeC1.c1,2000,0112:30:00,29 ,0.095124,187.9182,42.01846,52.23878
sgpcmbeC1.c1,2000,0113:30:00,29 ,0.005753,130.9152,36.31095,40.55838
sgpcmbeC1.c1,2000,0114:30:00,29 ,       0,165.7467,36.74657,37.44987
sgpcmbeC1.c1,2000,0115:30:00,29 ,  0.0412,82.14105,27.76599,24.62286
sgpcmbeC1.c1,2000,0116:30:00,29 ,0.012556,  61.202,24.47517,21.21222
sgpcmbeC1.c1,2000,0117:30:00,29 ,0.008731,13.74439,4.448353,5.086607
sgpcmbeC1.c1,2000,0118:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0119:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0121:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0122:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0123:30:00,22 ,       0,       0,       0,       0