Hi Jason,
You do not say what you want the alternative to do, so its hard to
know if this will be helpful. But one alternative is
dat - as.data.frame(ak.fan)
dat - melt(dat, id.vars=c(x, y))
p - ggplot(dat, aes(x=x, y=variable))
p + geom_tile(aes(fill=value))
-Ista
On Sun, Nov 21, 2010 at 9:04 AM, Jason Rupert jasonkrup...@yahoo.com wrote:
By any chance are there any alternatives to image(...) and filled.contour(...)
I used Rseek to search for that very topic, but didn't turn over any leads...
http://www.rseek.org/?cx=010923144343702598753%3Aboaz1reyxd4newwindow=1q=alternative+to+image+and+filled.contoursa=Searchcof=FORID%3A11siteurl=www.rseek.org%252F#1238
I'm sure there are some out there, but curious about some of the favorites and
ones folks have had success using.
Thanks for any insights and feedback.
I would like to use the alternative 2-D fill function with the example I have
been messing with in place of image(...) or filled.contour(...):
library(akima)
hyp_distance-seq(1,15)
angle_deg_val-seq(0,15)
x_distance_val-NULL
y_distance_val-NULL
for(ii in 1:length(hyp_distance))
{
for(jj in 1:length(angle_deg_val))
{
x_distance_tmp-hyp_distance[ii]*cos(angle_deg_val[jj]*pi/180)
y_distance_tmp-hyp_distance[ii]*sin(angle_deg_val[jj]*pi/180)
x_distance_val-c(x_distance_val, x_distance_tmp)
y_distance_val-c(y_distance_val, y_distance_tmp)
}
}
temperature_vals-rnorm(length(x_distance_val), 75, 2)
temp_samples-cbind(x_distance_val, y_distance_val, temperature_vals)
temp_samples_DF-data.frame(x = x_distance_val, y = y_distance_val, z =
temperature_vals)
ak.fan - interp(temp_samples[,1], temp_samples[,2], temp_samples[,3] )
length_val-floor(max(temperature_vals) - min(temperature_vals))*2
color_vals_red_to_yellow_to_green-colorRampPalette(c(red, yellow,
green),
space=Lab)(length_val)
color_vals_green_to_yellow_to_red-colorRampPalette(c(green, yellow,
red),
space=Lab)(length_val)
plot(1,1, col = 0, xlim = c(min(x_distance_val), max(x_distance_val)), ylim =
c(min(y_distance_val), max(y_distance_val)), xlab = Room X Position (FT),
ylab
= Room Y Position (FT), main = Room Temp vs Position)
grid()
# filled.contour(ak.fan, col = color_vals_red_to_yellow_to_green)
# filled.contour(ak.fan, col = color_vals_green_to_yellow_to_red)
# image(ak.fan, col = color_vals_red_to_yellow_to_green, add = TRUE)
image(ak.fan, col = color_vals_green_to_yellow_to_red, add = TRUE)
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--
Ista Zahn
Graduate student
University of Rochester
Department of Clinical and Social Psychology
http://yourpsyche.org
__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
