Display two rCharts NVD3 figures next to each other in rmarkdown - r

I want to display two charts with the rCharts package, one next to the other, more or less like the two pies are displayed in this link:
http://nvd3.org/examples/pie.html
I have a partial solution using <iframe>, but the solution has three problems:
It is too case specific
Including controls becomes a complicated task
It does not look too nice
Minimum working example:
---
title: "Example"
output: html_document
---
```{r rcht, message=FALSE, echo=FALSE, results='asis'}
library(rCharts)
df<-data.frame(label=c("One","Two","Three"),valuea=c(1,2,3),othera=c(10,11,12),
valueb=c(4,5,6),otherb=c(10,11,12),stringsAsFactors = FALSE)
p1 <- nPlot(valuea~ label, data = df, type = 'pieChart',height = 225, width = 300)
p2<- nPlot(valueb~ label, data = df, type = 'pieChart',height = 225, width = 300)
p1$show('inline', include_assets = TRUE, cdn = F)
p2$show('inline', include_assets = TRUE, cdn = F)
```
```{r message=FALSE, echo=FALSE}
p1$save("pie1.html", standalone = TRUE)
p2$save("pie2.html", standalone = TRUE)
```
<div align="center">
<font size="10" color="black" face="sans-serif">Both Pies</font><br>
<p>
<iframe src="pie1.html" height="400" width="400"></iframe>
<iframe src="pie2.html" height="400" width="400"></iframe>
</p>
<div>
I know pie charts should not be used and that I could use a multi-bar chart. However, I want to use this type of layout with other kinds of charts in the rCharts package.
Additionally, I would like to include controls in the charts whilst they are shown next to each other. Including the following code before the $save() function adds the controls:
```{r message=FALSE, echo=FALSE}
p1$addControls('y','valuea',values=c('valuea','othera'))
p2$addControls('y','valueb',values=c('valueb','otherb'))
```
This issue is less relevant to me, but if someone has a solution (preferably with only one control for both charts), it would be great.
I understand all this might be too much to handle from R. Any help/advice is appreciated.

Not elegant, but functional (I did not try it with controls):
---
title: "Example"
output: html_document
---
```{r rcht, message=FALSE, echo=FALSE, results='asis'}
library(rCharts)
library(htmltools)
df <- data.frame(label=c("One","Two","Three"),valuea=c(1,2,3),othera=c(10,11,12),
valueb=c(4,5,6),otherb=c(10,11,12),stringsAsFactors = FALSE)
p1 <- nPlot(valuea~ label, data = df, type = 'pieChart',height = 225, width = 300)
p2 <- nPlot(valueb~ label, data = df, type = 'pieChart',height = 225, width = 300)
```
```{r echo=FALSE, results="asis"}
cat("<table width='100%'><tr style='width:100%'><td width='50%'>")
```
```{r echo=FALSE, results="asis"}
p1$show('inline', include_assets = TRUE, cdn = FALSE)
```
```{r echo=FALSE, results="asis"}
cat("</td><td>")
```
```{r echo=FALSE, results="asis"}
p2$show('inline', include_assets = TRUE, cdn = FALSE)
```
```{r echo=FALSE, results="asis"}
cat("</td></tr></table>")
```

Hi I am having the same problem with controls it looks that in the viewer of R-studio everything works fine but not when I compile with Rmarkdown it doesn't show the plot at all.
```{r results = 'asis', comment = NA}
require(rCharts)
require(datasets)
p2 <- nPlot(mpg ~ cyl, group = 'wt',
data = mtcars, type = 'scatterChart')
p2$xAxis(axisLabel = 'Log2')
p2$yAxis(axisLabel = 'Log2')
p2$chart(tooltipContent = "#! function(key, x, y, e){
return '<b>Name:</b> ' + e.point.GeneID
} !#")
p2$chart(color = c('red', 'green'))
p2$addControls("x", value = 'mpg', values = names(mtcars))
p2$addControls("y", value = 'cyl', values = names(mtcars))
cat('<style>.nvd3{height: 400px;}</style>')
p2$print('chart2', include_assets = TRUE)
```
The code above is the addControls are removed actually works also in the rmarkdown.
Also, if you try to run the code above in Rstudio console (just from p2<-nPlot to cat command) and then calling p2 I can actually see the controls.

Related

Programmatically create tab and plot in markdown

I'm trying to create a dynamic number of tabs in my rmd with some content inside.
This one doesn't help.
Something like this:
---
title: "1"
output: html_document
---
```{r }
library(highcharter)
library(tidyverse)
iris %>%
dplyr::group_split(Species) %>%
purrr::map(.,~{
# create tabset for each group
..1 %>%
hchart("scatter", hcaes(x = Sepal.Length, y = Sepal.Width))
})
```
You can set results = 'asis' knitr option to generate the tabs in the map function using cat.
Getting Highcharter to work with asis was trickier :
Highchart needs to be called once before the asis chunck, probably to initialize properly, hence the first empty chart.
to print the chart in the asis chunck, the HTML output is sent in character format to cat
Try this:
---
title: "Test tabs"
output: html_document
---
`r knitr::opts_chunk$set(echo = FALSE, warning = FALSE, message = FALSE, cache = F)`
```{r}
library(highcharter)
library(tidyverse)
# This empty chart is necessary to initialize Highcharter in the tabs
highchart(height = 1)
```
```{r, results = 'asis'}
cat('## Tabs panel {.tabset} \n')
invisible(
iris %>%
dplyr::group_split(Species) %>%
purrr::imap(.,~{
# create tabset for each group
cat('### Tab',.y,' \n')
cat('\n')
p <- hchart(.x,"scatter", hcaes(x = Sepal.Length, y = Sepal.Width))
cat(as.character(htmltools::tagList(p)))
})
)
```
Note that while this solution works well, it goes beyond the original use for asis

rmarkdown resize plot inside of code chunk

I have an rmarkdownfile with a chunck that has a loop that creates many pages. Below is a toy example. See the "loop_chunk" code chunk. The "loop_chunk" has fig.width=9, fig.height=6, results="asis" and I am running into a problem where i need to reduce the size of a plot inside loop_chunk. All plots are 9x6 but I need to adjust one plot. I found the codee below: http://michaeljw.com/blog/post/subchunkify/
and I tried using it below but when you run the code you can see that there are 2 plots on pages 3 and 5 and there should not be. it is somehow not keeping the \newpages. There should be 1 plot on pages 2,3,4 and 5. There should only be 5 pages.
Any idea how to fix this?
---
title: "Untitled"
output: pdf_document
toc: yes
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE , comment = NA, message= FALSE, warning = TRUE)
subchunkify <- function(g, fig_height=7, fig_width=5) {
g_deparsed <- paste0(deparse(
function() {g}
), collapse = '')
sub_chunk <- paste0("
`","``{r sub_chunk_", floor(runif(1) * 10000), ", fig.height=", fig_height, ", fig.width=", fig_width, ", echo=FALSE}",
"\n(",
g_deparsed
, ")()",
"\n`","``
")
cat(knitr::knit(text = knitr::knit_expand(text = sub_chunk), quiet = TRUE))
}
data = data.frame(group= c("A","A"), value = c(1,3))
```
```{r loop_chunk, fig.width=9, fig.height=6, results="asis", message= FALSE, warning = FALSE}
for(i in 1:nrow(data)){
cat(paste0("\\newpage\n # Page ", i ," \n"))
plot(data$value[i])
cat("\n\n")
cat(paste0("\\newpage\n ## page with smaller plot \n\n"))
cat("Here is some text on this page for the smaller plot.")
cat("\n\n")
data2 = data.frame(x = 7, y = 900)
library(ggplot2)
myplot = ggplot(data2, aes(x = x, y = y ))+geom_point()
subchunkify(myplot , 4,4 )
# print(myplot) -> IS there a way to just reduce the height and width with print()?
cat("\n\n")
}
```
Using your subchunkify() function for the graphics::plot call outputs those plots to the intended pages. Replacing plot(data$value[i]) in your second chunk with
subchunkify(plot(data$value[i]), 5, 5)
outputs the 5 pages with plots as intended (where height & width are set to 5/can be edited to conditionally set dimensions for a specific plot).

Subplots in bookdown repeating the caption

The section of the bookdown manual on generating figures demonstrates a case where include_graphics() can be given a vector of paths of length > 1, producing a number of subplots with a single caption:
However, when I try this in my fork of thesisdown, in the PDF output I get the figure caption (and, judging by the spacing, the entire figure environment) repeated for each subplot. Here is a reproducible example:
---
output: bookdown::pdf_document2
toc: false
---
```{r, echo = FALSE}
for(i in 1:3){
jpeg(filename = paste0("temp_", i, ".jpg"), width = 600, height = 250)
plot(cars)
title(main = i)
dev.off()
}
```
```{r fig.cap = "Caption", out.width="100%", fig.ncol = 1, echo = FALSE}
knitr::include_graphics(paste0("temp_", 1:3, ".jpg"))
```
I was hoping more for the five images stacked, with a single caption at the bottom. This also appears to be breaking the figure cross-referencing, as each plot has its own figure number and cross-references to the chunk render as ??.
Getting subfigures requires a few additional settings to be set in the chunk header.
fig.subcap is a list of the captions for subfigures
fig.ncol: the number of columns of subfigures
out.width: the output width of the figures. You will normally set this 100% divided by the number of sub columns.
Subfigures are built using the subfig package. You can either include this within your LaTeX bookdown template, or alternative you can added it to the YAML as follows:
Here is an example:
---
output: bookdown::pdf_document2
toc: false
header-includes:
- \usepackage{subfig}
---
```{r, echo = FALSE}
for(i in 1:3){
jpeg(filename = paste0("temp_", i, ".jpg"), width = 600, height = 250)
plot(cars)
title(main = i)
dev.off()
}
```
```{r fig.cap = "Caption", out.width="100%", fig.ncol = 1, echo = FALSE, fig.subcap= c("First", "Second", "Third")}
knitr::include_graphics(paste0("temp_", 1:3, ".jpg"))
```

Suppress alt text for GIFs in rmarkdown HTML output

I'm generating GIFs using the gganimate package within an RMarkdown file. When using output = github_document in the front matter, the GIF appears as expected in the output (github-document-output). However, when using output = html_document, the GIF generates with alt text, which defaults to the chunk name (html-document-output).
Is there a way to suppress this automatic caption? I've tried setting my own caption using the fig.cap chunk option, but that was unsuccessful.
RMarkdown code
---
output:
html_document: default
github_document: default
---
```{r}
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>",
fig.path = "output/test-fig-",
cache.path = "output/test-cache-"
)
```
```{r cache = FALSE}
library(knitr)
library(animation)
ani.options(autobrowse = FALSE, interval = 1)
opts_knit$set(animation.fun = function(x, options, format = "gif") {
x = c(knitr:::sans_ext(x), knitr:::file_ext(x))
fig.num = options$fig.num
format = sub("^[.]", "", format)
fig.fname = paste0(sub(paste0(fig.num, "$"), "*", x[1]),
".", x[2])
mov.fname = paste0(sub(paste0(fig.num, "$"), "", x[1]), ".",
format)
# order correctly
figs <- Sys.glob(fig.fname)
figs <- figs[order(as.numeric(stringr::str_match(figs, paste0("(\\d+)\\.", x[2]))[, 2]))]
animation::im.convert(figs, output = mov.fname)
sprintf("![%s](%s)", options$label, paste0(opts_knit$get("base.url"), mov.fname))
})
opts_chunk$set(cache = TRUE, message = FALSE, warning = FALSE, fig.show = "animate")
```
```{r pkgs, cache = FALSE}
library(gapminder)
library(ggplot2)
theme_set(theme_bw())
```
```{r setup}
p <- ggplot(gapminder, aes(gdpPercap, lifeExp, size = pop, color = continent, frame = year)) +
geom_point() +
scale_x_log10()
```
```{r dependson = "setup"}
library(gganimate)
gg_animate(p)
```
The problem here is that you include the resulting animation with markdown syntax. This introduces some iiritations I guess.
Taking a look at hook_plot_html we can simulate the default output for standard plots:
sprintf(paste0('<div class="figure %s">',
'<img src="%s">',
'<p class="caption">%s</p>',
'</div>'), options$fig.align, mov.fname, options$fig.cap)

Loops in Rmarkdown: How to make an in-text figure reference? Figure captions?

{r setup, include=FALSE, message=FALSE, results="hide"}
knitr::opts_chunk$set(echo = TRUE)
library(knitr)
library(kfigr)
library(dplyr)
library(png)
library(grid)
library(pander)
library(ggplot2)
Question
Loops in rmarkdown: in-text figure reference? figure captions?
Goal
Use a for loop to create sections with text, in-text results, and multiple figure references with associated figure captions in the figure list. The figure references/numbering should be seemless with figures numbered before and after these new sections.
Note: The figures referenced in the for loop are generated earlier in the text, saved as pngs, and then re-loaded. This might seem clunky for the purpose of this example, but the actual figs are maps and are slow to generate (I plan to comment out the loop that generates the figures once I have them how I want).
{r echo = FALSE, warnings=FALSE, message=FALSE, results="hide"}
Data: Each year we have a different number of strata, hence the need for a loop.
df <- rbind(
data.frame(strata = rep("A", 10), x = rnorm(10, mean= 10), y = rnorm(10, mean = 15),z = rnorm(10, mean = 20)),
data.frame(strata = rep("B", 10), x = rnorm(10, mean= 5), y = rnorm(10, mean = 10), z = rnorm(10, mean = 15)),
data.frame(strata = rep("C", 10), x = rnorm(10, mean= 15), y = rnorm(10, mean = 20), z = rnorm(10, mean = 10)))
first_plot: the figure that should appear in the list before for loop creates the sections by strata
first_plot <- ggplot(df, aes(x, fill=strata)) + geom_histogram()
last_plot: the figure that should appear in the list after the for loop creates the sections by strata
last_plot <- ggplot(df, aes(x = strata, y = z)) + geom_boxplot()
Figure generation (this is the part that will be commented out later in my version once I have the maps how I want)
strat <- unique(df$strata)
for (i in seq_along(strat)) {
sub <- df %>% filter(strata %in% strat[i])
fig1 <- ggplot(sub, aes(x = x, y = y)) + geom_point()
ggsave(fig1, file=paste0("fig1_", strat[i], ".png"))
fig2 <- ggplot(sub, aes(x = x, y = z)) + geom_point()
ggsave(fig2, file=paste0("fig2_", strat[i], ".png"))
}
Load the png's
df_figs <- list.files(pattern = "\\.png$")
for (i in df_figs){
name <- gsub("-",".",i)
name <- gsub(".png","",name)
i <- paste(".\\",i,sep="")
assign(name,readPNG(i))
}
Introduction section
Some introductory text in the report and a figure r figr('first_plot',TRUE, type='Figure').
```{r echo = FALSE, warnings=FALSE, message=FALSE, results = "asis"}
# Summary of results and image file names that will be references in text
results <- df %>%
group_by(strata) %>%
dplyr::summarise_each(funs(mean)) %>%
mutate(fig1 = paste0("fig1_", strata),
fig2 = paste0("fig2_", strata))
#Text template (each strata will have its own section)
template <- "# The %s stratum
The mean of *x* in %s stratum was %1.1f. Relationships between *x* and *y* and *x* and *z* can be found in `r figr('%s', TRUE, type='Figure')` and `r figr('%s', TRUE, type='Figure')`.
"
#Create markdown sections in for loop
for(i in seq(nrow(results))) {
current <- results[i, ]
cat(sprintf(template,
current$strata, current$strata,
current$x,
current$fig1, current$fig2))
}
#Also doesn't work:
template <- "# The %s stratum
The mean in %s stratum was %1.0f. Results can be found in "
template2 <- " and "
template3 <- ".
"
`figr('%s', TRUE, type='Figure')` and `figr('%s', TRUE, type='Figure')`."
#For loop
for(i in seq(nrow(results))) {
current <- results[i, ]
cat(sprintf(template,
current$strata, current$strata,
current$mean,
current$fig_1, current$fig_2))
print(paste0("`r figr(",paste0("'", current$fig1,"'"), TRUE, type='Figure'))
cat(sprintf(template2))
print(paste0("`r figr(",paste0("'", current$fig2,"'"), "TRUE, type='Figure'),`"))
cat(sprintf(template3))
}
```
Conclusion section
Some discussion text in the report and figure r figr('last_plot',TRUE, type='Figure').
Figures
*NOTE:* I don't know how to automate the looped portion of the list of figures here, so I've done it by hand.
```{r 'first_plot', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6, fig.cap="The caption for the first figure."}
suppressMessages(print(first_plot))
```
```{r 'fig1_A', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6, fig.cap="Caption text for fig1_A."}
grid.raster(fig1_A)
```
```{r 'fig2_A', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6, fig.cap="Caption text for fig2_A."}
grid.raster(fig2_A)
```
```{r 'fig1_B', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6, fig.cap="Caption text for fig1_B."}
grid.raster(fig1_B)
```
```{r 'fig2_B', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6, fig.cap="Caption text for fig2_B."}
grid.raster(fig2_B)
```
```{r 'fig1_C', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6, fig.cap="Caption text for fig1_C."}
grid.raster(fig1_C)
```
```{r 'fig2_C', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6, fig.cap="Caption text for fig2_C."}
grid.raster(fig2_C)
```
```{r 'last_plot', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6, fig.cap="The caption for the last figure."}
suppressMessages(print(last_plot))
```
SOLUTIONS
Use knit_expand()
Use captioner instead of kfigr
This numbers your figures (or tables) in text and at the end of your report.
This script shows you how to create markdown paragraphs in for loops that have in-text references to figures.
It also shows you how to create custom figure captions in for loops while retaining the number order.
If you show how to do #4 and #5 using brew I will give you all the SO points.
Libraries
library(knitr)
library(dplyr)
library(png)
library(grid)
library(pander)
library(ggplot2)
library(devtools)
library(captioner)
Create a fig_nums() function using the captioner package
(https://github.com/adletaw/captioner/blob/master/vignettes/using_captioner.Rmd)
fig_nums <- captioner(prefix = "Figure")
Data
Each year we have a different number of strata, hence the need for a loop.
df <- rbind(
data.frame(strata = rep("A", 10), x = rnorm(10, mean= 10), y = rnorm(10, mean = 15), z = rnorm(10, mean = 20)),
data.frame(strata = rep("B", 10), x = rnorm(10, mean= 5), y = rnorm(10, mean = 10), z = rnorm(10, mean = 15)),
data.frame(strata = rep("C", 10), x = rnorm(10, mean= 15), y = rnorm(10, mean = 20), z = rnorm(10, mean = 10)))
first_plot: the figure that should appear in the list before for loop creates the sections by strata
first_plot <- ggplot(df, aes(x, fill=strata)) + geom_histogram()
fig_nums("first_plot", display = FALSE)
last_plot: the figure that should appear in the list after the for loop creates the sections by strata
last_plot <- ggplot(df, aes(x = strata, y = z)) + geom_boxplot()
Figure generation
Comment this section out once you have figs how you want. This step will not feel convoluted, unnatural, suboptimal, unnecessary, or like a very bad idea if you do a lot of mapping in R.
strat <- unique(df$strata)
for (i in seq_along(strat)) {
sub <- df %>% filter(strata %in% strat[i])
fig1 <- ggplot(sub, aes(x = x, y = y)) + geom_point()
ggsave(fig1, file=paste0("fig1_", strat[i], ".png"))
fig2 <- ggplot(sub, aes(x = x, y = z)) + geom_point()
ggsave(fig2, file=paste0("fig2_", strat[i], ".png"))
}
Load the png's
df_figs <- list.files(pattern = "\\.png$")
for (i in df_figs){
name <- gsub("-",".",i)
name <- gsub(".png","",name)
i <- paste(".\\",i,sep="")
assign(name,readPNG(i))
}
Introduction
Some introductory text in the report and a figure r fig_nums("first_plot", display="cite").
Results and image file names that will be referenced in text:
```{r echo = FALSE, warnings=FALSE, message=FALSE, results = "asis"}
results <- df %>%
group_by(strata) %>%
dplyr::summarise_each(funs(mean)) %>%
mutate(fig1 = paste0("fig1_", strata),
fig2 = paste0("fig2_", strata))
```
```{r run-numeric-md, warning=FALSE, include=FALSE}
#The text for the markdown sections in for loop... the knit_expand() is the work-horse here.
out = NULL
for (i in as.character(unique(results$strata))) {
out = c(out, knit_expand(text=c('#### The *{{i}}* strata',
'\n',
'The mean of *x* is ',
'{{paste(sprintf("%1.1f", results$x[results$strata==i]))}}', '({{fig_nums(results$fig1[results$strata==i],display="cite")}}).',
'\n'
)))
}
```
Creates section for each strata
`r paste(knit(text = out), collapse = '\n')`
Conclusion
Some discussion text in the report and figure r fig_nums("last_plot",display="cite").
List of Figures
`r fig_nums("first_plot",caption="Here is the caption for the first figure.")`
```{r 'first_plot', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6}
suppressMessages(print(first_plot))
```
```{r figcaps, include=FALSE}
caps = NULL
for (i in as.character(unique(results$strata))) {
caps = c(caps, knit_expand(
text=c({{fig_nums(results$fig1[results$strata==i], caption="Caption text for strata *{{i}}* goes here.")}},
'``` {r {{results$fig1[results$strata==i]}}, echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6}',
{{paste0('grid.raster(',results$fig1[results$strata==i],')')}},
'```',
'\n')))
}
#DON'T FORGET TO UNLIST!
src <- unlist(caps)
```
`r paste(knit(text = src),sep='\n')`
`r fig_nums("last_plot", caption="The caption for the last figure.")`
```{r 'last_plot', echo=FALSE, warning=FALSE, fig.width=6.5, fig.height=6}
suppressMessages(print(last_plot))
```

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