5
I have a rmarkdown script that generates a report in . pdf.
I would like to standardize the number of decimal places displayed, without needing to round() in every function.
At the beginning of the script, I tried to use:
options(scipen=30, digits=3)
This prevents the values from appearing as scientific notation, but the number of decimals is still varying. It is possible to create this pattern?
4
It is possible to accomplish this for the Chunk and to inline.
See in the example below: the real value, value with modification for inline and the modification to the Chunk.
The code below is in rmd, and consists of head, print original values (Chunk 1), function for adjustment inline (Chunk 2), adjustment to print as a result (Chunk 3) and print values default to decimal places (Chunk 4).
---
title: "Untitled"
output: html_document
---
## R Markdown
```{r }
mean(mtcars$mpg)
pi
```
\
Valor de pi é igual a `r pi`.
\
## MOD - INLINE
```{r , include=FALSE}
library(knitr)
inline_hook <- function (x) {
if (is.numeric(x)) {
res <- ifelse(x == round(x),
sprintf("%d", x),
sprintf("%.3f", x) # numero de casas decimais
)
paste(res, collapse = ", ")
}
}
knit_hooks$set(inline = inline_hook)
```
\
Valor de pi é igual a `r pi`.
\
## MOD - CHUNK
```{r , include=FALSE}
options(digits = 4)
```
```{r }
mean(mtcars$mpg)
pi
```
Source: inline.
Very interesting these functions! Thank you!
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I know with
format(X, nsmall=3)it will show numbers like 1 and 1.5 as 1,000 and 1,500, but I don’t know of a global option for this.– Daniel R
options(digits) is considered a "suggestion"; any function that specifies the number of boxes to display some result will have provenance. If you are generating the documents via Pandoc, take a look at the function
pander::panderOptions.– Carlos Eduardo Lagosta
@Carloseduardolalike thanks! interesting this library Pander! Will help a lot!
– RxT