| zoomInPlot {plotrix} | R Documentation |
Display a plot with a rectangular section expanded in an adjacent plot
Description
Display one plot on the left half of a device and an expanded section of that plot on the right half of the device with connecting lines showing the expansion.
Usage
zoomInPlot(x,y=NULL,xlim=NULL,ylim=NULL,rxlim=xlim,rylim=ylim,xend=NA,
zoomtitle=NULL,titlepos=NA,...)
Arguments
x, y |
numeric data vectors. If ‘y’ is not specified, it is set equal to ‘x’ and ‘x’ is set to ‘1:length(y)’. |
xlim, ylim |
Limits for the initial plot. |
rxlim, rylim |
Limits for the expanded plot. These must be within the above. |
xend |
Where to end the segments that indicate the expansion. Defaults to just left of the tick labels on the left ordinate. |
zoomtitle |
The title of the plot, display in the top center. |
titlepos |
The horizontal position of the title in user units of the zoomed plot. |
... |
additional arguments passed to ‘plot’. |
Details
‘zoomInPlot’ sets up a two column layout in the current device and calls ‘plot’ to display a plot in the left column. It then draws a rectangle corresponding to the ‘rxlim’ and ‘rylim’ arguments and displays a second plot of that rectangle in the right column. It is currently very simple and will probably become more flexible in future versions.
It just has. If ‘rxlim’ is set to NA, ‘locator’ will be called and the user can define the zoomed rectangle by clicking on each corner. This is a shameless ripoff of a suggestion by Greg Snow on the help list. Thanks, Greg.
Value
nil
Author(s)
Jim Lemon
See Also
Examples
zoomInPlot(rnorm(100),rnorm(100),rxlim=c(-1,1),rylim=c(-1,1),
zoomtitle="Zoom In Plot",titlepos=-1.5)