Rio-scatter to tty should display plot on X11

[ole-tange]

This will dump a PNG file to the tty:

< iris.csv Rio-scatter sepal_length sepal_width species

You never want that. If the output is not redirected to a file, display it on the screen with R's native displayer.

To see if stdout is a terminal you can use:

if [ -t 1 ] ; then
...
fi

[jeroenjanssens]

Thanks Ole, that's a good idea. I would fix this in Rio itself. What do you mean with R's native displayer? Do you know how to invoke it from the command line? So far, I've been using display from ImageMagick because it accepts standard input.

[ole-tange]

I mean something like this:

R -e 'X11();plot(sin, -pi, 2*pi);Sys.sleep(10)'

One of the nice things is that you can resize the window and have the plot redrawn.

[jeroenjanssens]

It's a good idea, but I don't have time to implement this myself. If anyone is still interested, please submit a PR.