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2009 Jan 04
1
POSIXct and chron issues with tz
...times zones. I need to match up the date/time of the
datasets and then invoke a conditional statement, such as: if dataC$mph
is >= 12 then keep dataM$co23 for the corresponding time/date stamp.
snippets of data files:
*dataC.txt*
LST in mph Deg DegF DegF2 % volts Deg mph2 w/m2
0506010000 0.00 13.6 218.1 36.8 -999 65.1 -999 -999
18.2 0.2
0506010005 0.00 12.9 214.3 36.8 -999 65.5 -999 -999
16.9 0.2
0506010010 0.00 14.4 215.7 36.9 -999 65.4 -999 -999
20.4 0.2
*dataM.txt*
doy yr mon day hr hgt1 hgt2 hgt3...