datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,01 0:30:00,28 ,       0,157.4426,9.289846,31.04723
sgpcmbeC1.c1,2002,01 1:30:00,26 ,       0, 229.526,12.22294, 45.3856
sgpcmbeC1.c1,2002,01 2:30:00,26 ,       0,201.3044,12.51134,40.34906
sgpcmbeC1.c1,2002,01 3:30:00,26 ,       0,156.4396, 13.7811,33.99218
sgpcmbeC1.c1,2002,01 4:30:00,26 ,       0,45.37442,6.299515,12.85963
sgpcmbeC1.c1,2002,01 5:30:00,26 ,       0,32.30972,3.641207, 7.33036
sgpcmbeC1.c1,2002,01 6:30:00,26 ,       0,35.67749,3.721912,9.268878
sgpcmbeC1.c1,2002,01 7:30:00,25 ,       0,29.12014,3.118838,6.932533
sgpcmbeC1.c1,2002,01 8:30:00,25 ,       0,52.04946,3.021462,10.35755
sgpcmbeC1.c1,2002,01 9:30:00,26 ,       0,55.46344,3.396364,11.05973
sgpcmbeC1.c1,2002,0110:30:00,28 ,       0,98.43918,9.133328,22.64747
sgpcmbeC1.c1,2002,0111:30:00,28 ,       0,44.91146,4.611334,9.922915
sgpcmbeC1.c1,2002,0112:30:00,28 ,       0, 167.534,9.772437,32.11339
sgpcmbeC1.c1,2002,0113:30:00,28 ,       0,305.7323,14.01472,57.66613
sgpcmbeC1.c1,2002,0114:30:00,28 ,       0,416.3765,17.44957,78.51775
sgpcmbeC1.c1,2002,0115:30:00,27 ,       0,501.3557,20.52079,96.27949
sgpcmbeC1.c1,2002,0116:30:00,27 ,       0,907.7604, 35.1067,174.4156
sgpcmbeC1.c1,2002,0117:30:00,27 ,       0,1330.126,51.55555,255.5351
sgpcmbeC1.c1,2002,0118:30:00,27 ,       0,479.5055,20.36539,91.78655
sgpcmbeC1.c1,2002,0119:30:00,27 ,       0, 430.408,18.76769,82.33502
sgpcmbeC1.c1,2002,0120:30:00,27 ,       0, 483.775,19.94893,92.72989
sgpcmbeC1.c1,2002,0121:30:00,27 ,       0,382.4529,16.52652,73.27883
sgpcmbeC1.c1,2002,0122:30:00,27 ,       0,343.4273,15.84705,65.97665
sgpcmbeC1.c1,2002,0123:30:00,27 ,       0,134.3248,7.588143,26.27046