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I am using the heatmap.2 package to make a heatmap:
heatmap.2(as.matrix(FOOBAR.txt[rowSums (abs(FOOBAR.txt)) != 0,]),
col=scaleyellowred,
margins = c(10, 20),
trace="none",
xlab = "Comparisons",
ylab ="gene",
lhei = c(2, 8),
scale=c("none"),
symbreaks=T,
cexRow=0.5,
cexCol=.7,
main="gene comparisons")
The output gives me a heatmap look like I want and looks good with the exception that the main title font is large. How do I decrease the font size of the title? I can't seem to figure it out. I can alter the font of the axis labels but not the title.
340
Create a dataframe using Pandas data frame. Create a heatmap using heatmap() method. To adjust the font size in Seaborn heatmap, change the fontsize value. To display the figure, use show() method.
We can change the fontsize , fontweight , and fontfamily . The fontsize property will increase our heatmap font size. We can resize those rectangles using a square argument. We can specify if we would like each of those rectangles to be a perfect square; we can turn this on by setting it equal to True.
heatmap.2 use this statement to print plot title:
title(main, cex.main = 1.5 * op[["cex.main"]])
So You should set cex.main argument in par list. For example:
par(cex.main=0.5) ## this will affect also legend title font size
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