datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,01 0:30:00,29 ,0.193531,2.803276,1.113004,0.574675
sgpcmbeC1.c1,1999,01 1:30:00,28 ,0.231676,2.466631,1.031696,0.461794
sgpcmbeC1.c1,1999,01 2:30:00,29 ,0.284964,3.172884,1.129372,0.605285
sgpcmbeC1.c1,1999,01 3:30:00,30 ,0.267777,3.386169,1.165579,0.652561
sgpcmbeC1.c1,1999,01 4:30:00,29 ,0.250625,2.469426,1.096821,0.530053
sgpcmbeC1.c1,1999,01 5:30:00,29 ,0.243383, 2.46022,1.110404,0.552416
sgpcmbeC1.c1,1999,01 6:30:00,29 ,0.249106,3.541779,1.159692,0.702522
sgpcmbeC1.c1,1999,01 7:30:00,31 ,0.241312,4.101406,1.250409,0.810284
sgpcmbeC1.c1,1999,01 8:30:00,30 ,0.236296,3.842779, 1.20505,0.794904
sgpcmbeC1.c1,1999,01 9:30:00,29 ,0.222968, 2.94969,1.095755,0.578566
sgpcmbeC1.c1,1999,0110:30:00,28 ,0.207206,2.964738, 1.13179,0.611361
sgpcmbeC1.c1,1999,0111:30:00,29 ,0.196306,3.342938,  1.1776,0.702881
sgpcmbeC1.c1,1999,0112:30:00,28 ,0.191294,2.713443,1.100314,0.546463
sgpcmbeC1.c1,1999,0113:30:00,27 ,0.188141,2.757856,1.123485,0.517486
sgpcmbeC1.c1,1999,0114:30:00,26 ,0.193938,3.173197,1.120428,0.550916
sgpcmbeC1.c1,1999,0115:30:00,26 , 0.20367,3.395845,1.133908,0.595779
sgpcmbeC1.c1,1999,0116:30:00,28 ,0.188616,3.382663,1.140449,0.620647
sgpcmbeC1.c1,1999,0117:30:00,29 ,0.189313, 3.88021,1.149287,0.664282
sgpcmbeC1.c1,1999,0118:30:00,30 ,0.200982,3.870061, 1.22344, 0.78292
sgpcmbeC1.c1,1999,0119:30:00,30 ,0.212464,4.020563,1.225441,0.809031
sgpcmbeC1.c1,1999,0120:30:00,29 ,0.205133,3.546305,1.197043, 0.74273
sgpcmbeC1.c1,1999,0121:30:00,30 ,0.199309, 3.50878,1.154057,0.643754
sgpcmbeC1.c1,1999,0122:30:00,30 , 0.19798,3.410406,1.155139,0.647852
sgpcmbeC1.c1,1999,0123:30:00,29 ,0.185822, 2.88829,1.150223,0.640378