datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,03 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 4:30:00,31 ,       0,0.637841,0.038426, 0.14914
sgpcmbeC1.c1,1998,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 6:30:00,31 ,       0,12.86867,3.707281,4.148731
sgpcmbeC1.c1,1998,03 7:30:00,31 ,2.333925,88.96867,35.13829,20.28707
sgpcmbeC1.c1,1998,03 8:30:00,31 ,10.48271,165.9735,78.46359, 42.5354
sgpcmbeC1.c1,1998,03 9:30:00,31 ,19.92924,288.4842,120.0866,76.22035
sgpcmbeC1.c1,1998,0310:30:00,31 ,43.08005,370.2933,169.5304,95.14332
sgpcmbeC1.c1,1998,0311:30:00,31 ,72.49923,454.7924, 188.787,95.52042
sgpcmbeC1.c1,1998,0312:30:00,31 , 62.8924,434.1744,182.6254,101.7107
sgpcmbeC1.c1,1998,0313:30:00,31 , 48.5764,425.1938,172.4891,97.99303
sgpcmbeC1.c1,1998,0314:30:00,31 ,52.93663,323.5431,147.5013, 79.3928
sgpcmbeC1.c1,1998,0315:30:00,30 ,41.75751, 314.891,115.6623,64.77787
sgpcmbeC1.c1,1998,0316:30:00,31 , 27.5437,219.2874,89.67177,48.23111
sgpcmbeC1.c1,1998,0317:30:00,31 ,13.71663,125.0167, 52.4836,26.81666
sgpcmbeC1.c1,1998,0318:30:00,31 ,1.039708, 27.6228,10.99819,8.007058
sgpcmbeC1.c1,1998,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0320:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0321:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0322:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0323:30:00,29 ,       0,       0,       0,       0