cf_func {ContourFunctions}

Makes filled contour plot from function

Description

A contour plot of the given function without sidebar by default. It calls the function 'cf_grid' to make the actual plot.

Usage

cf_func(fn0, n = 100, xlim = c(0, 1), ylim = c(0, 1), xylim = NULL,
  batchmax = 1, out.col.name = NULL, out.name = NULL, pts = NULL,
  gg = FALSE, ...)

Arguments

fn0

function to plot, first argument must be two-dimensional

n

number of points in each dimension

xlim

x limits for the contour plot

ylim

y limits for the contour plot

xylim

x and y limits for the contour plot, use when both are same #@param mainminmax whether the min and max values should be shown in the title of plot

batchmax

number of datapoints that can be computed at a time

out.col.name

if a column needs to be selected from the function, specify it

out.name

Selects with a $ the name from output to be used, for lists and data frames #@param pretitle Text to be preappended to end of plot title #@param posttitle Text to be appended to end of plot title #@param title Title for the plot #@param mainminmax_minmax Whether [min,max]= should be shown in title or just the numbers

pts

Points to plot on top of contour

gg

Should ggplot2 be used? Will use gcf_grid() instead of cf_grid().

...

Passed to cf_grid

References

[1] filled.contour R function, copied function but removed part for sidebar

[2] http://stackoverflow.com/questions/16774928/removing-part-of-a-graphic-in-r, answer by P Lapointe

Examples

cf_func(function(x){x[1]*x[2]})
cf_func(function(x)(exp(-(x[1]-.5)^2-5*(x[2]-.5)^2)))
cf_func(function(xx){exp(-sum((xx-.5)^2/.1))}, bar=TRUE)
cf_func(function(xx){exp(-sum((xx-.5)^2/.1))}, bar=TRUE, mainminmax=TRUE)
cf_func(function(x)(exp(-(x[1]-.5)^2-5*(x[2]-.5)^2)), with_lines=TRUE)