datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,02 0:30:00,26 ,       0,1.983338,0.156858,0.434878
sgpcmbeC1.c1,2003,02 1:30:00,20 ,       0,0.170749,0.008537,0.038181
sgpcmbeC1.c1,2003,02 2:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 3:30:00,20 ,       0,1.105189,0.055502,0.247073
sgpcmbeC1.c1,2003,02 4:30:00,22 ,       0,0.356462,0.016203,0.075998
sgpcmbeC1.c1,2003,02 5:30:00,24 ,       0,0.071201,0.002967,0.014534
sgpcmbeC1.c1,2003,02 6:30:00,28 ,       0,0.220514,0.010863,0.042442
sgpcmbeC1.c1,2003,02 7:30:00,28 ,0.204782,20.50695,3.978139,6.104076
sgpcmbeC1.c1,2003,02 8:30:00,28 ,0.008067,146.2329,37.11631,55.60986
sgpcmbeC1.c1,2003,02 9:30:00,28 ,0.000256,330.8023,96.07592,128.3583
sgpcmbeC1.c1,2003,0210:30:00,27 ,0.015984,483.4574,182.2068,200.5489
sgpcmbeC1.c1,2003,0211:30:00,27 ,0.115551,589.9446,218.2371,248.3412
sgpcmbeC1.c1,2003,0212:30:00,26 , 0.04702,644.7065,246.4134,273.3413
sgpcmbeC1.c1,2003,0213:30:00,26 ,0.046608,629.9108,231.6141,260.4863
sgpcmbeC1.c1,2003,0214:30:00,28 ,0.159004,549.4555,163.6947,214.4051
sgpcmbeC1.c1,2003,0215:30:00,28 ,       0,394.4243,126.6182,159.8837
sgpcmbeC1.c1,2003,0216:30:00,28 ,       0,233.5906,87.20935,99.02426
sgpcmbeC1.c1,2003,0217:30:00,28 ,0.021317,77.79021,22.34337,28.41773
sgpcmbeC1.c1,2003,0218:30:00,28 ,       0,2.551413,0.715188,0.847162
sgpcmbeC1.c1,2003,0219:30:00,28 ,       0, 1.59207,0.179217,0.404187
sgpcmbeC1.c1,2003,0220:30:00,26 ,       0,0.435656,0.029773,0.105192
sgpcmbeC1.c1,2003,0221:30:00,23 ,       0, 0.89162,0.079749,0.214087
sgpcmbeC1.c1,2003,0222:30:00,21 ,       0,0.889873,0.070559,0.199462
sgpcmbeC1.c1,2003,0223:30:00,22 ,       0,1.156501,0.074768,0.252063