On 15.07.2011 19:01, ScottM wrote:> Hello all,
>
> I'm relatively new to "R" and programming in general - I had
previously used
> MatLab, but decided to make the transition to R, as the computational times
> are much better!
>
> Anyway, I'm trying to use R to run a gamma distribution model to
estimate
> mean transit times of water moving through a hydrological catchment.
>
> My input are 3 .txt format files as follow:
>
> Precipitation_18o: 2 columns - column 1 is a date (Excel number format) and
> column 2 is an isotope ratio (i.e. -8.12)
> Runoff_18o: same as above
> Daily_Precip: 2 columns - column 1 is the same date format but column 2 is
a
> weekly bulk precipitation value (i.e. 10mm)
>
> When running the script, I keep getting the following error message:
>
> Error in data.frame(cQ.ou[ind.mea], cQ[cal.cQ:nrow(cQ), 2]) :
> arguments imply differing number of rows: 42, 44
We do not have your data and hence cannot say, but the error message is
probbaly right that cQ.ou[ind.mea] and cQ[cal.cQ:nrow(cQ), 2] do not
have the same number of elements.
Uwe Ligges
> Now, I know it's not the script, as it run perfectly for one site, but
not
> the other, but having read previous threads on other forums, it suggests
> that there aren't the same number of values in all 3 input files.
>
> A quick use of the str(FILENAME) quickly confirms that all 3 input files
> have 322 entries with 2 variables.
>
> I'd be grateful of ANY help, as this is really hampering my research
> progress right now!
>
> Cheers,
>
> Scott_M
>
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>
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