datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,04 0:30:00,30 ,0.187265,   4.541,1.449432,1.130739
sgpcmbeC1.c1,1997,04 1:30:00,30 ,0.233805,3.926398,  1.3936,0.902283
sgpcmbeC1.c1,1997,04 2:30:00,30 ,0.210298,3.419229,  1.3355,0.815747
sgpcmbeC1.c1,1997,04 3:30:00,30 ,0.330929,3.869112,1.261111,0.832154
sgpcmbeC1.c1,1997,04 4:30:00,30 ,0.292903,4.297234,1.230249,0.893592
sgpcmbeC1.c1,1997,04 5:30:00,30 ,0.239306,5.687119,1.295092,1.307056
sgpcmbeC1.c1,1997,04 6:30:00,30 ,0.251566,7.944072,2.479467, 2.06374
sgpcmbeC1.c1,1997,04 7:30:00,30 ,0.244649,9.652777,3.817227,2.819754
sgpcmbeC1.c1,1997,04 8:30:00,30 ,0.732464,8.397421,4.575857,2.365244
sgpcmbeC1.c1,1997,04 9:30:00,30 ,0.777089,8.336242,4.843739,2.096451
sgpcmbeC1.c1,1997,0410:30:00,30 , 0.51869,7.710524,4.221662,1.988716
sgpcmbeC1.c1,1997,0411:30:00,30 ,0.871384,14.06365,  5.0683,3.530694
sgpcmbeC1.c1,1997,0412:30:00,30 ,0.948544,13.69846,4.721604,3.536558
sgpcmbeC1.c1,1997,0413:30:00,30 , 0.74505,16.56178,5.070354,3.901506
sgpcmbeC1.c1,1997,0414:30:00,30 ,0.471377, 11.5587,4.697615,3.275367
sgpcmbeC1.c1,1997,0415:30:00,30 ,0.585302,9.710619,3.667446, 2.30979
sgpcmbeC1.c1,1997,0416:30:00,30 ,0.398351,10.30038,3.661455,2.420939
sgpcmbeC1.c1,1997,0417:30:00,30 ,0.285514,6.877608,3.339273,1.994264
sgpcmbeC1.c1,1997,0418:30:00,30 ,0.436414,9.971158,4.543817,3.153312
sgpcmbeC1.c1,1997,0419:30:00,30 , 0.26277,4.835521,1.945526,1.305427
sgpcmbeC1.c1,1997,0420:30:00,30 ,0.248546,8.011001,1.994961,1.889644
sgpcmbeC1.c1,1997,0421:30:00,30 ,0.194097,6.627038,1.369534,1.285988
sgpcmbeC1.c1,1997,0422:30:00,30 ,0.246948,4.235309,1.378166,1.059376
sgpcmbeC1.c1,1997,0423:30:00,30 ,0.221756,4.627241,1.270529, 1.13071