search for: printvalueenv

...t, but most importantly, they will probably want to auto-print values for most statements (i.e. print them if and only if R_Visible is TRUE). - There does not seem to be a good way (from the C-API) to do auto-printing of values outside of R_ReplDLLdo1(): R_Visible is not exported any longer, and PrintValueEnv() is neither. Rf_PrintValue() should yield the same results as PrintValueEnv() in most, but probably not all cases. - From R API, withVisible() provides a way to emulate auto-printing, but with the drawback that wrapping all statements inside withVisible() makes potential errors harder to read (...

Hi all, Can anyone help me understand why an implicit print (i.e. just typing df at the console), is so much slower than an explicit print (i.e. print(df)) in the example below? I see the difference in both Rstudio and in a terminal. # Construct large df as quickly as possible dummy <- 1:18e6 df <- lapply(1:10, function(x) dummy) names(df) <- letters[1:10] class(df) <-

...print() that was called (and needs to be dispatched on, although print.default will do that) and the print functionality can be called directly from C code, e.g. by PrintValue. Also, auto-printing as in the example does not call print.default at all (put a trace on it to see). but the C function PrintValueEnv()! -- Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +4...

Hi, I think this is a bug (even though I can't find documentation explicitly saying that it should work). Basically, Rf_PrintValue(obj) fails when 'obj' is an S4 object that should be printed using show() rather than print(). From the error message I'm guessing that the need to use show is detected correctly but then show is not found. "cbind2" in the code below is just