Can I navigate, zoom in and zoom out R plots?
I would like to know if R allows to pan and zoom images produced wi开发者_如何学运维th the "plot" function. I would like to obtain the plot transformation using the mouse and not through the command line, is it possible?
Thanks in advance.
It's a bit old question but for future references, I've wrote a package doing precisely that (based on zoomplot {in pkg:TeachingDemos}). It's called zoom:
The CRAN page on zoom
And you are welcome to check the latest and greatest and expand the package on Github
Usage -
library(zoom) # Invoke the Library
# Call plot
zm()
The instructions for Usage in a normal plot is
Mouse:
- Scroll to zoom in and out
- Hold left mouse button to move
Keyboard:
- Left/Right (h/l): move left/right
- Up/Down (k/j) : move up/down
- + or i / - or o : zoom in/out
- L/H : zoom in/out (x-axis only)
- K/J : zoom in/out (y-axis only)
- p : print to file
- r : reset limits
- s : show limits
q on the graphic window to quit
Not with the default plotting device as its internal model is 'static'.
There are workarounds, tough: look for example at package playwith, or at a Java-based device such as the iplots package on Simon's rforge. There are also extensions like ggobi and other on-going work (such as the Qt-based device which will in time replace ggobi) which try to make R-based graphing more dynamic.
But the main takeaway is: not, not really -- due to the way R graphics devices are designed.
To add to Dirk's answer: see also the iWebPlots and RnavGraph packages.
You should look at Greg Snows zoomplot {in pkg:TeachingDemos}. You may be able to call that function with cursor interface using the tk toolkit. I think Greg's package also has examples of such an interface.
To add to existing answers: I like to use the identify() function to manually add labels just to particular points I want.
You can also add R graphs to plot.ly . This should be enough for the most common stuff.
Stefan
Now there are also http://www.htmlwidgets.org/ that add a great set of interactive visualizations capabilities to R. Most of them can easily be zoomed and panned.
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