datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,12 0:30:00,28 ,       0,0.157333,0.013196,0.036037
sgpcmbeC1.c1,1998,12 1:30:00,28 ,       0,0.092323,0.009361,0.022944
sgpcmbeC1.c1,1998,12 2:30:00,28 ,       0,0.128167,0.014806,0.030688
sgpcmbeC1.c1,1998,12 3:30:00,28 ,       0,0.052037,0.004855,0.013178
sgpcmbeC1.c1,1998,12 4:30:00,29 ,       0,0.171773,0.014043,0.035184
sgpcmbeC1.c1,1998,12 5:30:00,29 ,       0,0.084485,0.009331,0.023861
sgpcmbeC1.c1,1998,12 6:30:00,29 ,       0,0.051463,0.001775,0.009556
sgpcmbeC1.c1,1998,12 7:30:00,29 ,0.048736,5.666043,2.202351,1.657944
sgpcmbeC1.c1,1998,12 8:30:00,29 ,0.525257,20.43997,8.343215, 4.98731
sgpcmbeC1.c1,1998,12 9:30:00,29 ,0.878038,19.76925,9.051634,4.690965
sgpcmbeC1.c1,1998,1210:30:00,28 ,0.904729,27.48279,10.18332,6.916801
sgpcmbeC1.c1,1998,1211:30:00,29 ,1.128286,29.25139,9.095422,8.485673
sgpcmbeC1.c1,1998,1212:30:00,28 ,0.509149,29.88818,6.513252,6.967695
sgpcmbeC1.c1,1998,1213:30:00,27 ,0.552336, 27.9857, 7.58325,7.540547
sgpcmbeC1.c1,1998,1214:30:00,27 ,0.335023,19.81611,8.002063,4.975232
sgpcmbeC1.c1,1998,1215:30:00,26 ,0.463688,19.03868,9.393408,4.881008
sgpcmbeC1.c1,1998,1216:30:00,27 ,0.805042,15.10323,8.997065,4.039676
sgpcmbeC1.c1,1998,1217:30:00,27 ,       0,2.710725,0.843698,0.732866
sgpcmbeC1.c1,1998,1218:30:00,27 ,       0,0.312606,0.011578,0.060161
sgpcmbeC1.c1,1998,1219:30:00,27 ,       0,0.134301,0.005034,0.025835
sgpcmbeC1.c1,1998,1220:30:00,27 ,       0,0.093574,0.012828,0.030512
sgpcmbeC1.c1,1998,1221:30:00,27 ,       0,0.114998,0.008378,0.024002
sgpcmbeC1.c1,1998,1222:30:00,28 ,       0,0.141732, 0.00759,0.027905
sgpcmbeC1.c1,1998,1223:30:00,28 ,       0,0.125027,0.019072, 0.03947