datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,02 0:30:00,18 ,0.231558,4.972529,1.441509,1.536089
sgpcmbeC1.c1,2002,02 1:30:00,18 ,0.209886,19.93833,4.158563,6.687143
sgpcmbeC1.c1,2002,02 2:30:00,18 ,0.201866,7.678222,2.351026,2.648027
sgpcmbeC1.c1,2002,02 3:30:00,18 ,0.265816,23.03485,2.841566, 5.28152
sgpcmbeC1.c1,2002,02 4:30:00,18 ,0.375446,14.49577,2.485944,3.911152
sgpcmbeC1.c1,2002,02 5:30:00,18 , 0.22192, 5.35794,1.530088,1.600236
sgpcmbeC1.c1,2002,02 6:30:00,18 ,0.216778,7.643702,1.881288,2.135446
sgpcmbeC1.c1,2002,02 7:30:00,18 , 0.17473,10.39032,3.003436,3.261972
sgpcmbeC1.c1,2002,02 8:30:00,18 ,0.419401,16.79297,4.007817,4.333577
sgpcmbeC1.c1,2002,02 9:30:00,18 , 0.49507,11.27848,3.690548,2.968369
sgpcmbeC1.c1,2002,0210:30:00,18 ,0.921141,11.18653,3.353025,2.589165
sgpcmbeC1.c1,2002,0211:30:00,18 ,0.948225,16.86302,5.304004,4.232428
sgpcmbeC1.c1,2002,0212:30:00,18 ,0.752638,12.78735,3.753815,2.967574
sgpcmbeC1.c1,2002,0213:30:00,18 ,0.593724,14.51279,  3.2915,3.189958
sgpcmbeC1.c1,2002,0214:30:00,18 ,0.652459,6.927801,2.184076,1.771678
sgpcmbeC1.c1,2002,0215:30:00,18 ,0.644286,15.46946,3.343196,3.667773
sgpcmbeC1.c1,2002,0216:30:00,19 ,0.517372,20.03838,3.316742,4.970088
sgpcmbeC1.c1,2002,0217:30:00,19 ,0.328052,9.918469,2.065144,2.254707
sgpcmbeC1.c1,2002,0218:30:00,19 ,0.358307,24.98947,3.176593,5.507648
sgpcmbeC1.c1,2002,0219:30:00,19 ,0.526873, 10.5314,2.505172,2.856612
sgpcmbeC1.c1,2002,0220:30:00,19 ,0.355038,27.80382,3.726431,6.625381
sgpcmbeC1.c1,2002,0221:30:00,19 ,0.158087,13.71016,2.974277,4.115065
sgpcmbeC1.c1,2002,0222:30:00,19 ,0.257495,8.150963,1.447261,1.836636
sgpcmbeC1.c1,2002,0223:30:00,19 ,0.197092, 19.7218,4.219503,6.056199