Nicolas,
Maybe something like this would work for you. Put all of your x values in
a list (or a vector, if your x values are scalars). Use sapply to loop
through all of your x values, applying the value1() and value2()
functions, and saving the results in a data frame. Then write the data
frame to a file.
allofmyxs <- list(x1=48, x2=21, x3=1.9)
mydf <- as.data.frame(t(sapply(allofmyxs, function(x) c(value1(x),
value2(x)))))
write.table(mydf, file=output.txt)
Jean
nicolapon <n...@msn.com> wrote on 11/08/2012 03:14:51 PM:
>
> Dear R experts,
>
> I am a beginner with R and I have a question regarding the output of a
> function.
>
> Basically, I created 2 functions, value1 and value2, that calculate two
> values, and I would like to print those two values to an output
datafile. I
> tryed the following function:
>
> function (x)
{write.table(data.frame(value1(x),value2(x)),file=output.txt)}
>
> My problem is that I would like to calculate those values for different
> values of x and to get one line in the output file per value.
> When I use this function for the second time, it erases the value of the
> first try, etc. How can I proceed so that I will add a new line to the
> output at every step instead of deleting the previous line?
>
> Thank you very much for your answers!
>
> Nicolas
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