Re: [Gretl-users] Problems with R function in foreign block

On Thu, 8 Mar 2018, Artur T. wrote: > I want to call an R function for drawing stacked histograms using > gretl's foreign block. As only numeric values (scalar, matrix) can be > passed to R, I first write a temporary txt-file containing the string > for the path+file-name for the plot into $dotdir. Ah, we've assumed up till now that anyone calling an R function within gretl will just be interested in numerical stuff. However, it's not difficult to pass gretl strings to R (he says, trusting that R, as gretl, does everything in UTF-8). So that's now enabled in git. > Then I call the R function and read-in the txt-file. > > Using R, this function works fine. But it doesn't work properly when > calling from inside gretl. I obtain the error: > > <error> >     External command failed >     *** error in function Rhist, line 8 > </error> Not sure what precisely was going wrong there, but anyway, it's no longer necessary to create an intermediate string-passing function.

That said, here's a revision of your script that works with current git: <hansl> set verbose off set R_functions on The above writes Rhistcheck.png OK but there's one oddity: there's a momentary flash of what I presume is an R plot window. Do you know how to prevent that?