I want to put HTML widgets like formattable (from formattable package) in an HTML page generated through RMarkdown. I need the widgets to be generated from within a for loop. How can i do that? With or without print(), both don't work.
This is an example code (partly taken from formattable homepage):
---
title: "formattable example loop"
output: html_document
---
```{r}
library(formattable)
df <- data.frame(
id = 1:10,
name = c("Bob", "Ashley", "James", "David", "Jenny",
"Hans", "Leo", "John", "Emily", "Lee"),
age = c(28, 27, 30, 28, 29, 29, 27, 27, 31, 30),
grade = c("C", "A", "A", "C", "B", "B", "B", "A", "C", "C"),
test1_score = c(8.9, 9.5, 9.6, 8.9, 9.1, 9.3, 9.3, 9.9, 8.5, 8.6),
test2_score = c(9.1, 9.1, 9.2, 9.1, 8.9, 8.5, 9.2, 9.3, 9.1, 8.8),
final_score = c(9, 9.3, 9.4, 9, 9, 8.9, 9.25, 9.6, 8.8, 8.7),
registered = c(TRUE, FALSE, TRUE, FALSE, TRUE, TRUE, TRUE, FALSE, FALSE, FALSE),
stringsAsFactors = FALSE)
for (i in 1: 10){
print(formattable(df, list(
age = color_tile("white", "orange"),
grade = formatter("span",
style = x ~ ifelse(x == "A", style(color = "green", font.weight = "bold"), NA)),
test1_score = color_bar("pink", 0.2),
test2_score = color_bar("pink", 0.2),
final_score = formatter("span",
style = x ~ style(color = ifelse(rank(-x) <= 3, "green", "gray")),
x ~ sprintf("%.2f (rank: %02d)", x, rank(-x))),
registered = formatter("span",
style = x ~ style(color = ifelse(x, "green", "red")),
x ~ icontext(ifelse(x, "ok", "remove"), ifelse(x, "Yes", "No")))
)))
}
```
The result should be ten times this formattable in an html_document.
Try this (there's a small wrapper for the table output and it's the code from the formattable site as it was easier to read :-)
---
title: "formattable example loop"
output: html_document
---
```{r setup}
library(formattable)
library(htmltools)
df <- data.frame(
id = 1:10,
name = c("Bob", "Ashley", "James", "David", "Jenny",
"Hans", "Leo", "John", "Emily", "Lee"),
age = c(28, 27, 30, 28, 29, 29, 27, 27, 31, 30),
grade = c("C", "A", "A", "C", "B", "B", "B", "A", "C", "C"),
test1_score = c(8.9, 9.5, 9.6, 8.9, 9.1, 9.3, 9.3, 9.9, 8.5, 8.6),
test2_score = c(9.1, 9.1, 9.2, 9.1, 8.9, 8.5, 9.2, 9.3, 9.1, 8.8),
final_score = c(9, 9.3, 9.4, 9, 9, 8.9, 9.25, 9.6, 8.8, 8.7),
registered = c(TRUE, FALSE, TRUE, FALSE, TRUE, TRUE, TRUE, FALSE, FALSE, FALSE),
stringsAsFactors = FALSE)
show_plot <- function(plot_object) {
div(style="margin:auto;text-align:center", plot_object)
}
```
```{r}
do.call(div, lapply(1:10, function(i) {
show_plot(print(formattable(df, list(
age = color_tile("white", "orange"),
grade = formatter("span",
style = x ~ ifelse(x == "A", style(color = "green", font.weight = "bold"), NA)),
test1_score = color_bar("pink", 0.2),
test2_score = color_bar("pink", 0.2),
final_score = formatter("span",
style = x ~ style(color = ifelse(rank(-x) <= 3, "green", "gray")),
x ~ sprintf("%.2f (rank: %02d)", x, rank(-x))),
registered = formatter("span",
style = x ~ style(color = ifelse(x, "green", "red")),
x ~ icontext(ifelse(x, "ok", "remove"), ifelse(x, "Yes", "No")))
))))
}))
```