Finding different hues for a mosaic plot compatible with grayscale printing
Dear Colleagues,
Thanks for that JIm, but It strikes me that printing the residual
values in the cells might be a simpler way of communicating the
direction of each cell.
I can get the residuals printed via the labeling_values commands in
mosaic, but I cannot seem to *combine* this with labeling_borders
commands that I'd like to use to modify the rotation, font size and
contents of variable names and labels.
The following mosaic command draws the plot with the labeling I'd like.
>mosaic(~social_class+ctax_agg_scaled, pop=FALSE, shade=TRUE,
main="The Liberals Carbon Tax Or Green Shift Would Hurt The Canadian
Economy By EGP Class Category", main_gp=gpar(fontsize=16),
gp=shading_hcl(CST21$observed, CST21$expected, ASR21, df=12,
h=c(260,0), c=c(100,0), l=c(90,50), interpolate=c(1,2,3,4)),
labeling_args=list(labels=TRUE, rot_labels=c(25,0,0,25),
gp_labels=gpar(fontsize=7), just_labels="center",
offset_labels=c(1,0,0,4), offset_varnames=c(2,0,0,4),
set_varnames=c(ctax_agg_scaled="The Liberal Green Shift Or Carbon Tax
Would Hurt The Canadian Economy", social_class="EGP Class Category")))
And when I take out the labeling_borders commands and insert the
following,
>labeling=labeling_values(value_type=c("residuals"), suppress=0)
then I do get the residuals printed, but the labels are unattractive.
How do I combine labeling_borders and labeling_values commands in one
command.
Yours, Simon Kiss
On 12-May-10, at 2:42 PM, Jim Lemon wrote:
On 05/12/2010 07:34 PM, Simon Kiss wrote:
I'm working with the following code below to generate a how do I set the h,c, and l values such that the significant, positive residuals appear different on a grayscale printer from significant grayscale residuals. The challenge as I see it is that one can only distinguish the positive and negative residuals with the hue/. Varying the chroma and the luminance only affect the distinctions between large and small and significant and non significant. But my positive and negative residuals are both large (absolutely) and significant, meaning that they will have the same chroma and luminosity, but different hues. I guess the key here is to find two separate hue values that appear substantially different *on a grayscale printer* at the same chroma and luminance. I have read through Zeileis et al. (2007, 2008) but can't quite find the answer there. I have also tried the Friendly shading to vary the line type, but I can't find line types that are different enough to communicate the difference between positive and negative residuals clearly. Your assistance is appreciated.
mosaic(~educ+trade_off_scaled, shade=TRUE, main="Support For
Environmental Protection At The Expense of Creating Jobs By Education", gp=shading_hcl(CST17$observed, CST17$expected, ASR17, df=6, h=c(260,0), c=c(100,0), l=c(90,0)), labeling_args=list(rot_labels=c(25,90,0,0), offset_labels=c(1,0,0,2), offset_varnames=c(2,0,0,4), set_varnames=c(trade_off_scaled="Protecting The Environment Is More Important Than Creating Jobs", educ="Level of Education")))
Hi Simon, I thought that the symbolbox function might do something useful, but it required a bit of modification. The attached mod allows the user to fill a rectangle with symbols, which includes things like "+" and "-". Jim <symbolbox.R>
********************************* Simon J. Kiss, PhD SSHRC and DAAD Post-Doctoral Fellow John F. Kennedy Institute of North America Studies Free University of Berlin Lansstra?e 7-9 14195 Berlin, Germany Cell: +49 (0)1525-300-2812, Web: http://www.jfki.fu-berlin.de/index.html