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 ,       0,1.586757,0.094619,0.367567
sgpcmbeC1.c1,1998,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 6:30:00,31 ,       0,22.17272, 5.86587,6.308198
sgpcmbeC1.c1,1998,03 7:30:00,31 ,2.295308,83.11255,33.38557,25.32257
sgpcmbeC1.c1,1998,03 8:30:00,31 ,3.013667,105.9938,45.30604, 25.9171
sgpcmbeC1.c1,1998,03 9:30:00,31 ,8.056187, 195.129,54.83697,45.94177
sgpcmbeC1.c1,1998,0310:30:00,31 ,6.191255,225.4773,66.03509, 55.5021
sgpcmbeC1.c1,1998,0311:30:00,31 ,7.362175, 208.885,64.50041,58.19931
sgpcmbeC1.c1,1998,0312:30:00,31 ,3.437895,196.9735,59.62272,66.51979
sgpcmbeC1.c1,1998,0313:30:00,31 ,8.003403,290.2314,67.54578,79.47734
sgpcmbeC1.c1,1998,0314:30:00,31 ,7.711106,227.9774,60.17039,53.58948
sgpcmbeC1.c1,1998,0315:30:00,30 ,5.999364,257.6159,53.60162,52.56019
sgpcmbeC1.c1,1998,0316:30:00,31 ,4.765444,121.7296,49.20116,30.51188
sgpcmbeC1.c1,1998,0317:30:00,31 , 3.47083,92.39545,45.30327,27.45928
sgpcmbeC1.c1,1998,0318:30:00,31 , 2.00714, 39.5582,16.45182,11.70121
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