[Rd] Data Entry Editor

[Prof Brian D Ripley]

On Fri, 5 May 2000, Uwe Ligges wrote:

> Prof Brian Ripley, "[Rd] Windows version of R-devel":
> 
> > I would be particularly interested in comments on the new data entry
> > editor (used by fix/edit on data frames).  This is still work in progress
> > (in parallel with changes on X11).
> > [...]
> > A data entry editor is now implemented.  This is similar to the Unix
> > one (see ?dataentry) with the additional feature that right-clicking
> > in a cell turns it into an editable field (entered as a new value
> > by navigating away from the cell).

data.entry on Unix has lots of quirks.  Thanks for the comments: as I
said, this is work in progress, and based on some already flaky code.

> You know most (or all) of the following points, I suppose:
> (WinNT4.0)
> 
> 
> - in help(dataentry): "... Tab moves left. ...", but moves right.

Thanks.

> - Shift+Tab also moves right. I expected, it would move left (as in
> other spreadsheets).

Not there, will add.

> - If the "Data Entry Editor" is opened and you are moving the window of
> another application around its window, it is "flickering" a long time.
> 
> - Using data.entry() on a existing matrix, list or data.frame, unnamed
> columns after that are named "var1", "var2", etc.

I don't see that here.

> - data.entry() does not work with all data.frames, e.g.:
> 
>    x <- data.frame(1:2, c("A", "B"))
>    data.entry(x)
>  Error in de.ncols(sdata) : wrong argument to dataentry

You should use edit and not data.entry with data frames.  That one is wrong
on Unix too.

> - data.entry() with some irregular names as "Modes" argument crashes,
> e.g.:
> 
>    x <- 1
>    data.entry(x, Modes = plot)
>  Dr. Watson ...

Crashes Unix too.

> - Expand existing vectors or matrices.
>   It's to difficult to describe for me. Look into the examples:
> 
>    x <- 1
>    data.entry(x)
>    ## Klick into [2, 1]  (should be NA ?):
>    0
>    ## Klick into [3, 1]:
>    0
>    ## Klick into [4, 1]: 
>    NA
> 
> 
>    x <- matrix(1:2, nrow=1)
>    data.entry(x)
>    ## Klick into [2, 1]: 
>    1.#INF00e-316 
>    ## and ENTER:
>    1
>    ## Klick into [3, 1]:
>    0
>    ## Klick into [4, 1]: 
>    NA

There's some bug there: will take a look. Also single-clicking seems
suspect at present, acting as double clicking, so this is related I think.

-- 
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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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