Plot Main Title in Two Lines

How to split the Main title of a plot in 2 or more lines?

Like this:

plot(1)
title(main="This is \nTitle")

Edit:

Try this

plot(1, main=paste("X:",1," ","Y:", 2," ","\nZ:",3))

Plot main title in two lines

The root issue is that plotmath does not support newlines within the
expressions to be output.

Control characters (e.g. \n) are not interpreted in character strings in plotmath, 
  unlike normal plotting.

You really need to create and output each line separately.

For example :

Lines <- list(bquote(paste("C=", .(CVal))),
              bquote(paste(sum(xi), "=", .(SumEpsVal))))

Now output each line The text in the list is converted to expressions do.call

mtext(do.call(expression, Lines),side=3,line=0:1)

Text wrap for plot titles

try adding "\n" (new line) in the middle of your title. For example:

plot(rnorm(100), main="this is my title \non two lines")

printing text in multiple lines as the title of a plot or axis WITH a subscript present in the text

You can do this with the atop function.

plot(1,main=expression(atop(CO[2]~'Flux', paste('(kg C ', m^-2,' ',s^-1,')'))))

Since the lheight par doesn't affect expressions, if you want tighter spacing between the lines, you can use the following.

plot(1,main=expression(textstyle(atop(CO[2]~'Flux', paste('(kg C ', m^-2,' ',s^-1,')')))), 
     cex.main=2)

Common main title of a figure panel compiled with par(mfrow)

This should work, but you'll need to play around with the line argument to get it just right:

par(mfrow = c(2, 2))
plot(iris$Petal.Length, iris$Petal.Width)
plot(iris$Sepal.Length, iris$Petal.Width)
plot(iris$Sepal.Width, iris$Petal.Width)
plot(iris$Sepal.Length, iris$Petal.Width)
mtext("My 'Title' in a strange place", side = 3, line = -21, outer = TRUE)

mtext stands for "margin text". side = 3 says to place it in the "top" margin. line = -21 says to offset the placement by 21 lines. outer = TRUE says it's OK to use the outer-margin area.

To add another "title" at the top, you can add it using, say, mtext("My 'Title' in a strange place", side = 3, line = -2, outer = TRUE)

Adjust plot title (main) position

We can use title() function with negative line value to bring down the title.

See this example:

plot(1, 1)
title("Title", line = -2)

How to change the font size in the second main title line of a plot

Alternative to adding second main title and increase font size would be to use title() with plot(). With title() you could also add and manipulate position of "second title" and also font type.

So the code looks like this:

    plot(1, main = paste("X:",1," ","Y:", 2," ")) 
   # In order to change font size use cex.main and in order to manipulate 
   # the position of second title use line()
  title(main = ("Z: 3"),  line = 0.5, cex.main = 0.8)

And the output (font of Z: 3 is smaller)

split title of a figure in matplotlib

I get the correct alignment when I format the string this way:

import matplotlib.pylab as plt

fig = plt.figure()#num=0,figsize=(8.27, 11.69), dpi=300)
ax  = fig.add_subplot(2, 2, 1)
ax.set_title('Normalized occupied \n Neighbors')

plt.show()

Add main title multiple plots ggarange

You can use annotate_figure :

library(ggpubr)

plot<- ggarrange(ba,mi,fa, ncol=3, nrow=1, common.legend = TRUE,legend="bottom")

annotate_figure(plot, top = text_grob("Dive depths (m)", 
               color = "red", face = "bold", size = 14))

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