How to Adjust the Font Size of Tablegrob

How to adjust the Font Size of tableGrob

You can do this via themes:

mytheme <- gridExtra::ttheme_default(
    core = list(fg_params=list(cex = 2.0)),
    colhead = list(fg_params=list(cex = 1.0)),
    rowhead = list(fg_params=list(cex = 1.0)))

myt <- gridExtra::tableGrob(mtcars[1:5, 1:5], theme = mytheme)

grid.draw(myt)

There are a number of other examples in browseVignettes("gridExtra") -- look at the tableGrob examples. A great deal of control is possible.

tableGrob: resizing a table (changing font size) drawn on top of ggplot using annotation_custom

If you just want all the text to be smaller in your table, use base_size in ttheme_default:

library(ggplot2)
library(grid)
library(gridExtra)

df <- data.frame(x=seq(1,10),y=seq(11,20))
table <- data.frame(x=seq(1,3),y=seq(4,6))

ggplot(df,aes(x=x,y=y)) + 
  geom_point() + 
  annotation_custom(tableGrob(table,rows=NULL, theme = ttheme_default(base_size = 8)),
                    xmin=0,xmax=3,ymin=15,ymax=20)

^{Created on 2020-03-05 by the reprex package (v0.3.0)}

How do I fit a very wide grid.table or tableGrob to fit on a pdf page?

I got this done using font sizes. Not the best solution (requires manual intervention) but maybe someone can contribute something more elegant.

termTable = tableGrob(terms, h.even.alpha=1, h.odd.alpha=1,  v.even.alpha=0.5, v.odd.alpha=1, core.just='left', rows=c(),
gpar.coretext =gpar(fontsize=8),
gpar.coltext=gpar(fontsize=10, fontface='bold'),
gpar.rowtext=gpar(fontsize=10, fontface='bold')
)

Increase tableGrob column title size and cell size

You can do this by changing the padding of the colhead within the theme.

eg

thm <- ttheme_default(colhead = 
             # first unit is the wdith, and second the height
             list(padding=unit.c(unit(4, "mm"), unit(10, "mm"))))

tableGrob(d, theme=thm)

To get an idea of what you can change you can view ttheme_default() in the terminal

Change font size of all existing grobs in table

You could do it like this:

lapply(1:length(g$grobs),function(i){g$grobs[[i]]$gp$fontsize <<- 35})
grid.draw(g)

tableGrob formatting

Here are some ideas that could be useful for solving your problem.

library(grid)
library(gridExtra)
library(gtable)

# Build table
tabla_fin <- rbind(
c("","2015\nabril","2016\nabril","2017\nmarzo","2017\nabril"),
c("Pedidos",-23.3,-13.8,-26,-39),
c("Existencias",7.6,1.2,5.3,10.5),
c("Expectativas",30.7,32.7,28.7,24),
c("ICI",-0.1,5.9,-0.9,-8.5),
c("ICI Desest*",0.4,5.7,-3.2,-6.9))

colnames(tabla_fin) <- tabla_fin[1,]
tabla_fin <- tabla_fin[-1,]

rownames(tabla_fin) <- tabla_fin[,1]
tabla_fin <- tabla_fin[,-1]

print(tabla_fin)

#              2015\nabril 2016\nabril 2017\nmarzo 2017\nabril
# Pedidos      "-23.3"     "-13.8"     "-26"       "-39"      
# Existencias  "7.6"       "1.2"       "5.3"       "10.5"     
# Expectativas "30.7"      "32.7"      "28.7"      "24"       
# ICI          "-0.1"      "5.9"       "-0.9"      "-8.5"     
# ICI Desest*  "0.4"       "5.7"       "-3.2"      "-6.9"

# Install Calibri font using the extrafont package
# read the help of font_install()
library(extrafont)
loadfonts(device="win")
# font_install()

# Theme for text tables
t1 <- ttheme_default(
        core=list(
         fg_params=list(fontface=rep("plain", 6), fontfamily="Calibri",
                      x=1, hjust=1),
         bg_params = list(
                     fill=c(rep("white",3),"grey80","grey90"),
                     col=c("white","white","white","grey80","grey90"),
                     alpha = rep(1,5))
        ),
        rowhead=list(
         fg_params=list(x=0, hjust=0, fontface="plain", fontfamily="Calibri"),
         bg_params = list(
                     fill=c("white",rep("white",3),"grey80","grey90"),
                     col=c("white","white","white","white","grey80","grey90"),
                     alpha = rep(1,5))
        ),
        colhead=list(
         fg_params=list(fontface="plain",fontfamily="Calibri"),
         bg_params = list(
                     fill="grey70",
                     col="grey70",
                     alpha = rep(1,5))
        )
)

# Create gtable containing text grobs
t  <- tableGrob(tabla_fin, theme=t1)

# Add horizontal and vertical lines
t <- gtable_add_grob(t,
        grobs = segmentsGrob( # line across the bottom
            x0 = unit(0,"npc"),
            y0 = unit(0,"npc"),
            x1 = unit(1,"npc"),
            y1 = unit(0,"npc"),
            gp = gpar(lwd = 4.0)),
        t = 1, b = 1, l = 1, r = ncol(t))
t <- gtable_add_grob(t,
        grobs = segmentsGrob( # line across the bottom
            x0 = unit(0,"npc"),
            y0 = unit(0,"npc"),
            x1 = unit(1,"npc"),
            y1 = unit(0,"npc"),
            gp = gpar(lwd = 4.0)),
        t = 4, b = 4, l = 1, r = ncol(t))
t <- gtable_add_grob(t,
        grobs = segmentsGrob( # line across the bottom
            x0 = unit(0,"npc"),
            y0 = unit(0,"npc"),
            x1 = unit(0,"npc"),
            y1 = unit(1,"npc"),
            gp = gpar(lwd = 4.0)),
        t = 1, b = nrow(t), l = 4, r =4)

# Draw table
grid.newpage()
grid.draw(t)

Here is the table:

tableGrob: set the height and width of a grid.table

The solution I went with was to manipulate the length of the levels like this:

 longest <- 0
 longestnumber <- 0

 for (i in 1:length(levels(x))){

  if (longest < nchar(levels(x))[i]){
  longest <- nchar(levels(x))[i] 
  longestnumber <- i
  } 
   }

 for (i in 1:(100-longest)){
  levels(x)[longestnumber] <- paste(levels(x)[longestnumber], " ", sep="")
  }

That way I can control the width of the table

---

Related Topics