datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,02 0:30:00,26 ,       0,0.331169, 0.04061,0.079168
sgpcmbeC1.c1,1998,02 1:30:00,24 ,       0, 0.42435,0.069885,0.127887
sgpcmbeC1.c1,1998,02 2:30:00,24 ,       0,0.182888,0.026558,0.046913
sgpcmbeC1.c1,1998,02 3:30:00,24 ,       0,0.674176,0.080401, 0.17711
sgpcmbeC1.c1,1998,02 4:30:00,24 ,       0,0.384293,  0.0465,0.089927
sgpcmbeC1.c1,1998,02 5:30:00,24 ,       0,0.406143,0.062093, 0.11105
sgpcmbeC1.c1,1998,02 6:30:00,24 ,       0,0.615224,0.118792, 0.16493
sgpcmbeC1.c1,1998,02 7:30:00,23 ,1.641593,49.48532,16.73721,15.56205
sgpcmbeC1.c1,1998,02 8:30:00,22 ,17.27149,234.3219,109.8832,71.94453
sgpcmbeC1.c1,1998,02 9:30:00,22 ,47.83831,440.4811,217.8138, 135.855
sgpcmbeC1.c1,1998,0210:30:00,22 , 71.5561,600.3307,337.9025,177.9948
sgpcmbeC1.c1,1998,0211:30:00,23 ,104.1821,723.6385,417.6369,212.0854
sgpcmbeC1.c1,1998,0212:30:00,23 ,69.17181,772.1989,485.9008,223.1266
sgpcmbeC1.c1,1998,0213:30:00,22 ,80.38534,751.8511,497.4268,232.0172
sgpcmbeC1.c1,1998,0214:30:00,22 ,83.01686,671.2177,450.3888,189.1685
sgpcmbeC1.c1,1998,0215:30:00,23 , 62.4953,523.4923,315.6931, 135.322
sgpcmbeC1.c1,1998,0216:30:00,23 ,24.91055,351.4249, 187.671,95.72048
sgpcmbeC1.c1,1998,0217:30:00,22 ,7.826081, 136.787,67.62104,39.16301
sgpcmbeC1.c1,1998,0218:30:00,23 ,0.031404,10.19718,2.806589,2.755053
sgpcmbeC1.c1,1998,0219:30:00,25 ,       0,0.617466,0.184399,0.206282
sgpcmbeC1.c1,1998,0220:30:00,25 ,       0, 0.91607,0.162813,0.241864
sgpcmbeC1.c1,1998,0221:30:00,25 ,       0,1.033947,0.146482,0.234995
sgpcmbeC1.c1,1998,0222:30:00,25 ,       0,0.523445,0.076816,0.129761
sgpcmbeC1.c1,1998,0223:30:00,25 ,       0,0.596155,0.051879,0.126387