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POR - change size of axis labels for corrplot
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copied!<p>I am using the following with <code>corrplo</code>t:</p> <pre><code>require("corrplot") ## needs the corrplot package corrplot(cor(lpp_axis1, lpp_axis2), method=c("number"), bg = "grey10", addgrid.col = "gray50", tl.offset = 2, tl.cex=2, tl.col = "black", col = colorRampPalette(c("yellow","green","navyblue"))(100)) </code></pre> <p>This is created with a csv file available <a href="http://misterdavis.org/r_wiki/r_results_1231_2010" rel="nofollow noreferrer">here</a>.</p> <p>The graph is fine and I can adjust the cl labels all I want. I've tried adjusting the labels on x and y axis with no impact. I looked at changing mar - yet I haven't found a way to. I was unsuccessful with trying to use cex.label to change size.</p> <p>The question - how can I make the text appearing for corrplot (not the cl, and not in the grid) larger?</p> <p>The two axes are the following data frames:</p> <pre><code>lpp_axis1 <- data.frame("Compile Source Code" = Q3A.1, "View Source Code" = Q3A.2, "Change Source Code" = Q3A.3, "Write Documentation" = Q3A.8, "File Bug Reports"= Q3B.3, "Ask Questions" = Q3B.5, "Provide Answers" = Q3B.6, "Overall Participation" = Q3a3bConsolidated) lpp_axis2 <- data.frame("Identification" = Q1,"Overall Learning" = Q6Consolidated, "Learning Programming" = Q6.1, "Learning about Computers" = Q6.2, "Learning Teamwork" = Q6.3) </code></pre> <p>The output from</p> <pre><code>str(lpp_axis1) </code></pre> <p>is </p> <pre><code>> str(lpp_axis1) 'data.frame': 4603 obs. of 8 variables: $ Compile.Source.Code : int 4 2 3 2 2 2 3 2 2 0 ... $ View.Source.Code : int 4 2 1 1 2 2 3 1 1 0 ... $ Change.Source.Code : int 4 1 0 1 2 1 2 1 1 0 ... $ Write.Documentation : int 4 1 2 2 3 0 3 0 1 0 ... $ File.Bug.Reports : int 4 4 1 2 2 0 2 0 0 0 ... $ Ask.Questions : int 4 4 2 4 2 1 2 1 3 0 ... $ Provide.Answers : int 2 4 1 4 4 0 3 1 3 0 ... $ Overall.Participation: int 49 26 14 32 31 8 27 10 15 0 ... </code></pre> <p>The output from </p> <pre><code>packageDescription("corrplot") </code></pre> <p>indicates:</p> <pre><code>Package: corrplot Type: Package Title: visualization of a correlation matrix Version: 0.30 Date: 2010-05-30 Author: Taiyun Wei Suggests: seriation, cairoDevice, Cairo, Maintainer: Taiyun Wei <weitaiyun@gmail.com> Description: The corrplot package is a graphical display of a correlation matrix, confidence interval. It also contains some algorithms to do matrix reordering. License: GPL-2 | GPL-3 LazyLoad: yes URL: http://corrplot.r-forge.r-project.org Repository: CRAN Repository/R-Forge/Project: corrplot Repository/R-Forge/Revision: 45 Date/Publication: 2010-05-31 07:44:14 Packaged: 2010-05-30 20:39:16 UTC; rforge Built: R 2.11.1; ; 2011-03-19 00:22:49 UTC; unix -- File: /home/user/R/x86_64-pc-linux-gnu-library/2.11/corrplot/Meta/package.rds > </code></pre> <p>The corrplot maintainer wrote back with an alternate corrplot.r available <a href="http://misterdavis.org/R_info/corrplot.r" rel="nofollow noreferrer">here</a> </p> <p>Using the this corrplot and the example code below, the text size is acceptable. However, attempts to increase it also produce the same effects.</p> <pre><code>source("http://misterdavis.org/R_info/corrplot.r") corrplot(cor(lpp_axis1, lpp_axis2), addn=T, addgrid.col = "gray50", tl.cex=2, assign.col="min2max", tl.col = "black", cl.ratio=0.4, addcolor="no", col = colorRampPalette(c("yellow","green","blue"))(100)) </code></pre> <p>Using an earlier version of the correlation circles available <a href="http://addictedtor.free.fr/graphiques/sources/source_152.R" rel="nofollow noreferrer">here</a>, it is possible to adjust the text to one's heart desire. (Though the graph lacks some of the functionality of the later, more refined corrplot package.) cex can be used for cex. I may try to tweak the two to come up with a happy medium as time permits.</p> <p>Using the older correlation circles script, the following code produces sufficiently large X and Y axis labels:</p> <pre><code>circle.corr(cor(lpp_axis1, lpp_axis2), bg = "gray50", col = colorRampPalette(c("navyblue","white", "red"))(100), cex=1.5) </code></pre>

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