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I have managed to make a 2x2 plot using grid.arrange:
library(gridExtra) grid.arrange(p1,p3,p2,p4, ncol=2, nrow=2, top = "Daily QC: Blue") The main title of this multiplot is very small. Is there a way to change the title text size and font.
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Titles and subtitlesAdding a global title and/or subtitle to a page with multiple plots is easy with grid. arrange() : use the top , bottom , left , or right parameters to pass either a text string, or a grob for finer control.
To arrange multiple ggplot2 graphs on the same page, the standard R functions - par() and layout() - cannot be used. The basic solution is to use the gridExtra R package, which comes with the following functions: grid. arrange() and arrangeGrob() to arrange multiple ggplots on one page.
To change the size of plots arranged using grid. arrange, we can use heights argument. The heights argument will have a vector equal to the number of plots that we want to arrange inside grid.
grid. arrange() function sets up a gtable layout to place multiple grobs on a page. It is located in package "gridExtra".
main=textGrob("Daily QC: Blue",gp=gpar(fontsize=20,font=3)) Edit with v>=2.0.0 of gridExtra, main has become top (for consistency with bottom, left and right).
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Due to changes in both packages grid and gridExtra, the current answer is outdated. Library package grid is also required to use textGrob and gpar.
The new code should include both packages:
library(grid) library(gridExtra) grid.arrange(p1,p3,p2,p4, ncol=2, nrow=2, top = textGrob("Daily QC: Blue",gp=gpar(fontsize=20,font=3))) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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