Related
I have a long string which I want in a table, for instance 100x the letter A (AAA...). I would like kable to split this string into multiple lines if they don't fit in the table instead of making these strings overflow such as shown
here.
I noticed kable is actually able of doing so, provided there are newlines or -'s in your string, see for instance here.
However, I would like kable to do this splitting on either selected characters or on any character, so the output result would be this, but I don't know how to achieve this. I had a look on SO and in the kableextra documentation, but no luck. Any suggestions?
Below is a chunk to play around with.
---
title: 'rasstasrt'
sansfont: Calibri Light
output: pdf_document
---
```{r setup, include=FALSE}
library(kableExtra);
library(dplyr)
knitr::opts_chunk$set(cache = F)
```
```{r}
dt <-tibble(Items =c("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAaaaaAAa", "Item 2", "Item 3"),
Tmd5ext_1 =c("Lorem ipsum "),
Text_2 =c("Duis pos "))
kableExtra::kable(dt, "latex", booktabs = F, col.names =c("Item", "Short Title", "Veryong Title")) %>% column_spec(1:3, width = "5cm", )
```
You can leverage the newline character in latex, \\ and the argument escape = FALSE in kableExtra::kable(). Settting escape = FALSE causes the \\ to be read as newline characters instead of literal \\. Note that because \ is an escape character in R, you need two slashes \\ in order for R to interpret a single slash \, so to get 2 literal slashes \\ you need to put 4 \\\\ in the string.
---
title: 'rasstasrt'
sansfont: Calibri Light
output: pdf_document
---
```{r setup, include=FALSE}
library(kableExtra)
library(dplyr)
knitr::opts_chunk$set(cache = F)
```
```{r}
dt <-tibble(Items = c("AAAAAAAAAAAAAAA\\\\AAAAAAAAAA\\\\AAAAAAAAAAA\\\\AAAAAAAAAAAAA\\\\AAAAAAaaaaAAa",
"Item 2",
"Item 3"),
Tmd5ext_1 = c("Lorem ipsum "),
Text_2 = c("Duis pos "))
kableExtra::kable(dt,
"latex",
booktabs = F,
col.names =c("Item", "Short Title", "Veryong Title"),
escape = FALSE) %>%
column_spec(1:3, width = "5cm")
```
Alternatively, if you wanted to insert the newline after a specific number of characters, you could write a function to do that.
---
title: 'rasstasrt'
sansfont: Calibri Light
output: pdf_document
---
```{r setup, include=FALSE}
library(kableExtra)
library(dplyr)
knitr::opts_chunk$set(cache = F)
```
```{r}
add_return <- function(x, len) {
# intialize empty vector
y <- c()
# start at beginning of string
i <- 1
# Break string up into lengths of len
while(i < nchar(x)) {
y <- c(y,substr(x, i, i + len - 1))
i <- i + len
}
# concatenate the substrings together with the newline characters
paste0(y, collapse = "\\\\")
}
dt <-
tibble(
Items = c(
add_return(
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAaaaaAAa",
len = 5
),
"Item 2",
"Item 3"
),
Tmd5ext_1 = c("Lorem ipsum "),
Text_2 = c("Duis pos ")
)
kableExtra::kable(
dt,
"latex",
booktabs = F,
col.names = c("Item", "Short Title", "Veryong Title"),
escape = FALSE
) %>% column_spec(1:3, width = "5cm")
```
You could also use regular expressions to insert the return after a specific character string.
---
title: 'rasstasrt'
sansfont: Calibri Light
output: pdf_document
---
```{r setup, include=FALSE}
library(kableExtra)
library(dplyr)
knitr::opts_chunk$set(cache = F)
```
```{r}
regex_add_return <- function(x, after) {
gsub(pattern = paste0("(",after,")"), replacement = paste0("\\1\\\\\\\\"),x)
}
dt <-
tibble(
Items = c(
regex_add_return(
"AAAAAAAAAAAAAAAz123AAAAAAAAAAAAAAAz123AAAAAAAAAAz123AAAAAAAAAAAAAAAaaaaAAa",
after = "z123"
),
"Item 2",
"Item 3"
),
Tmd5ext_1 = c("Lorem ipsum "),
Text_2 = c("Duis pos ")
)
kableExtra::kable(
dt,
"latex",
booktabs = F,
col.names = c("Item", "Short Title", "Veryong Title"),
escape = FALSE
) %>% column_spec(1:3, width = "5cm")
```
Note that there are 8 slashes in gsub() because the slash is also an escape character for regular expressions, so each literal slash has to be escaped with a slash, but then each slash that is being used as an escape character for regex also has to be escaped again for R, requiring another slash.
I created an R Markdown HTML report where I am using Kable tables. I am trying to convert this report into a Shiny dashboard, and I noticed that the Kable table from the report does not display the images in Shiny.
This is how the table displays in Rmd:
This is how the table displays in Shiny:
This is the code that produces the tables: The images are picked (status_image and significance_image) change depending their pct_change and significant_greater_less_pvalue values.
dt_2 <- cbind(initial_medians_table(), medians_significance_df) %>%
mutate(notes = "",
status_image = paste("![](www/", ifelse(pct_change <= 0, "down_arrow_green", "up_arrow_red"), ".png)", sep = ""),
significance_image = paste("![](www/", ifelse(significant_greater_less_pvalue < input$pvalue_threshold, "significant", "not_significant"), ".png)", sep = ""),
medians_analysis = paste(medians_analysis, " mins (", round(medians_analysis/(24*60), 2), " days)", sep = ""),
medians_baseline = paste(medians_baseline, " mins (", round(medians_baseline/(24*60), 2), "days)", sep = "")) %>%
select(V1, V2, medians_analysis, medians_baseline, change, status_image, significance_image, notes)
And this is how I am rendering in Shiny:
ui.R
uiOutput("tableset")
server.R
output$tableset <- renderUI({
out <- kable(medians_and_significant_test(), align = rep('c', ncol(medians_and_significant_test())), escape = FALSE,
col.names = c("High-Level Process",
"Deeper-Level Process",
"Analysis (Median)",
"Baseline (Median)",
"% Change",
"Performance",
"Statistically Significant?",
"Notes")) %>%
kable_styling(c("striped", "condensed", "hover", "responsive"), full_width = F) %>%
kableExtra::group_rows(index = c("Level 0" = 1, "Level 1" = 3, "Level 2" = 6)) %>%
footnote(symbol = c(paste("Significance test used:", input$sig_test_selected),
paste("p-value threshold used is", input$pvalue_threshold, "to test for significant"))
)
HTML(out)
})
I am using the wrong "string" or call for rendering the images in a cell? I am also happy to use DT if anyone knows how to render images from the www app folder on the cell.
Thanks in advance
I'm using the kableExtra package to output a table to PDF in R markdown.
I use the command group_rows() to group some rows of my table together.
The text in some rows of my first column is too long for the column width, so it is broken into two lines. However, there is no indentation of the second line. Is there a way to either indent also the second line or remove the indentation overall?
Increasing the column width so the text won't be spread over two lines is unfortunately no option since I have way more columns in my real table.
This is a subset of my data frame:
data <- structure(list(`Control variables` = c("GDP growth", "GDP per capita",
"Top income tax rate", "Right-wing executive"), Treated = structure(c("2.29",
"21,523.57", "0.70", "0.62"), class = "AsIs"), top10_synthetic = structure(c("3.37", "19,939.72", "0.68", "0.63"), class = "AsIs"), top10_mean = structure(c("2.95", "30,242.60", "0.64", "0.43"), class = "AsIs")), .Names = c("Control variables", "Treated", "top10_synthetic", "top10_mean"), row.names = c(NA, 4L), class = "data.frame")
This is the code I am using:
```{r}
kable(data, "latex", caption = "table 1", booktabs = T, col.names = c("Control variables", "Treated", "Synthetic", "Mean")) %>%
add_header_above(c("", "", "Top 10%" = 2)) %>%
group_rows("UK", 1, 2) %>%
group_rows("Japan", 3, 4, latex_gap_space = "0.8cm") %>%
footnote(general = "xxx") %>%
kable_styling(latex_options = c("HOLD_position", "scale_down")) %>%
column_spec(1, width = "3cm")
```
This is how the .pdf output looks like. As you can see, e.g. the text "top income tax rate" is split into two lines and I would like the second line to be indented just like the first line.
Thank you for any tips!
If you just run the chunk in the R console, you'll see this LaTeX output:
\begin{table}[H]
\caption{\label{tab:}table 1}
\centering
\resizebox{\linewidth}{!}{
\begin{tabular}[t]{>{\raggedright\arraybackslash}p{3cm}lll}
\toprule
\multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{2}{c}{Top 10\%} \\
\cmidrule(l{2pt}r{2pt}){3-4}
Control variables & Treated & Synthetic & Mean\\
\midrule
\addlinespace[0.3em]
\multicolumn{4}{l}{\textbf{UK}}\\
\hspace{1em}GDP growth & 2.29 & 3.37 & 2.95\\
\hspace{1em}GDP per capita & 21,523.57 & 19,939.72 & 30,242.60\\
\addlinespace[0.8cm]
\multicolumn{4}{l}{\textbf{Japan}}\\
\hspace{1em}Top income tax rate & 0.70 & 0.68 & 0.64\\
\hspace{1em}Right-wing executive & 0.62 & 0.63 & 0.43\\
\bottomrule
\multicolumn{4}{l}{\textit{Note: }}\\
\multicolumn{4}{l}{xxx}\\
\end{tabular}}
\end{table}
As you can see, kableExtra isn't putting in a line break in that title, LaTeX is doing it. This means you need a LaTeX fix for the problem. Maybe someone else knows an easier one, but the best I could find is the following: wrap the long row title in a minipage environment, and fiddle with the spacing to look better.
Since this is kind of messy, I'd write an R function to do it:
inMinipage <- function(x, width)
paste0("\\begin{minipage}[t]{",
width,
"}\\raggedright\\setstretch{0.8}",
x,
"\\vspace{1.2ex}\\end{minipage}")
This needs to be called on the data being put into the table, and kable needs to be told not to escape those backslashes (using escape = FALSE). In addition, the \setstretch command comes from the setspace LaTeX package. So overall your sample document would look like this:
---
output:
pdf_document:
extra_dependencies: setspace
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
library(kableExtra)
library(knitr)
```
```{r}
inMinipage <- function(x, width)
paste0("\\begin{minipage}[t]{",
width,
"}\\raggedright\\setstretch{0.8}",
x,
"\\end{minipage}")
data <- structure(list(`Control variables` = c("GDP growth", "GDP per capita", "Top income tax rate", "Right-wing executive"), Treated = structure(c("2.29",
"21,523.57", "0.70", "0.62"), class = "AsIs"), top10_synthetic = structure(c("3.37", "19,939.72", "0.68", "0.63"), class = "AsIs"), top10_mean = structure(c("2.95", "30,242.60", "0.64", "0.43"), class = "AsIs")), .Names = c("Control variables", "Treated", "top10_synthetic", "top10_mean"), row.names = c(NA, 4L), class = "data.frame")
data[[1]] <- inMinipage(data[[1]], "2.5cm")
kable(data, "latex", caption = "table 1", booktabs = T, col.names = c("Control variables", "Treated", "Synthetic", "Mean"), escape = FALSE) %>%
add_header_above(c("", "", "Top 10%" = 2)) %>%
group_rows("UK", 1, 2) %>%
group_rows("Japan", 3, 4, latex_gap_space = "0.8cm") %>%
footnote(general = "xxx") %>%
kable_styling(latex_options = c("HOLD_position", "scale_down")) %>%
column_spec(1, width = "3cm")
```
With that code I see this:
The spacing isn't quite right, but it's getting close. I hope this helps.
Hi i made this awesome table with kableExtra, but my only problem is that the height of the rows is not always equal. Does any one know a remedy for this?
my table:
for example, as you can see, the line for item number 22 (6th row) has a larger height (spacing) than other lines.
my code:
my_column_names = c("Item number", "Item",
"Emotion", "Social",
"At Home", "Body", "Emotion",
"Social 1", "Social 2",
"At Home", "Body")
kable(df1,
format = "latex", booktabs = TRUE,
col.names = my_column_names,
caption = "Factor loadings for the 4 and 5 Factor Model") %>%
kable_styling(latex_options = c("striped", "hold_position"),
full_width = FALSE) %>%
add_header_above(c(" " = 2,
"4 Factor Model " = 4, "5 Factor model" = 5)) %>%
add_header_above(c(" " = 2,
"Model" = 9)) %>%
kableExtra::landscape()
The reason why the row height is not always equal is that by default kable inserts a \addlinespace every 5th rows. To get rid of it, put linesep = "" in kable(). See Get rid of \addlinespace in kable for details.
Usually, this is something that you can change via CSS in an HTML table. Not sure how to do this with kableExtra but you might want to consider tableHTML to do it. I am adding a small example below to demonstrate row height:
library(tableHTML)
tableHTML(mtcars[1:10, ],
border = 1,
rownames = TRUE,
caption = 'This is a caption',
footer = 'This is a footer',
widths = c(140, rep(50, 11)),
second_headers = list(c(2, 5, 6), c('', 'col2', 'col3')),
theme = 'scientific') %>%
add_css_row(list('height', '50px'), rows = 3:12)
You don't need to use the scientific theme if you don't want to. The package gives you flexibility to add any css you like (like striped rows, etc.). You can check a tutorial here if interested.
P.S. It currently only supports one extra header. Apart from that your whole table can be replicated.
I looked this question but the given method does not seem work with footnotes (See MWE). I wonder how to add hyperlink in table footnotes using kableExtra package.
knitr::kable(
x = mtcars[1:4, 1:5]
, format = "latex"
, caption = "Table Caption with hyperlink[note]"
, escape = FALSE
) %>%
kableExtra::add_footnote("\\href{https://github.com/haozhu233/kableExtra}{kableExtra}")
With kableExtra > 0.5.0, you can use escape in footnote.
library(kableExtra)
knitr::kable(mtcars[1:4, 1:5],
format = "latex",
caption = "Table Caption with hyperlink[note]",
escape = FALSE
) %>%
add_footnote("\\href{https://github.com/haozhu233/kableExtra}{kableExtra}",
escape = F)