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n4495326
2012 Nov 12
2
Using "apply" instead of "for" loop / multithreading
...k,11]*1e-6)/(R*(resp[i,7]+273.15)))
CO2v[i]<-CO2umol[i]/(infoch[k,10])
CO2s[i]<-CO2umol[i]/(infoch[k,9])
}
For that, I have two data frames :
- *infoch :* variables used to calculate CO2 fluxes (16 rows with the
characteristics of 16 analysis chambers)
<http://r.789695.n4.nabble.com/file/n4649326/infoch.jpg>
- *resp: *time series containing CO2 values and temperatures by chamber
analysed (more than 500.000 rows)
<http://r.789695.n4.nabble.com/file/n4649326/resp.jpg>
other variables :
Press=93000
R=8.31
The loop is working good, but taking quite a long time to process, if
some...