Warning in RMarkdown about hrbrthemes HOT 36 OPEN

gosh i hate fonts in Linux, BSD and R and Python

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The extrafont setup, in particular running font_import() did the trick. Thanks a bunch!

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Hmm, the following minimal reproducible example does not work for me:

---
title: "test"
output: pdf_document
---

```{r setup, include=FALSE}
library(dplyr)
library(ggplot2)
library(hrbrthemes)
extrafont::loadfonts(quiet=TRUE)
```

```{r}
iris %>%
  ggplot(aes(Sepal.Length, Sepal.Width)) + geom_point() + theme_ipsum()
```

It throws

Error in grid.Call.graphics(L_text, as.graphicsAnnot(x$label), x$x, x$y,  : 
  invalid font type
Calls: <Anonymous> ... drawDetails -> drawDetails.text -> grid.Call.graphics
In addition: There were 50 or more warnings (use warnings() to see the first 50)
Execution halted

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Hey Bob, just wanted to let you know that the addition of the extrafont::loadfonts(quiet=TRUE) to .Rmd code chunks solved a problem I was having. Praise be to the search gods. Thanks!

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add extrafont::loadfonts() after library(tidyverse) so the PDF NULL graphics device can see the fonts.

No warnings now.

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Ah, fonts and R/Python.

You need TTF versions of the fonts for them to work across devices consistently in R.

Said fonts need to be installed at the system-level.

You also need to ensure you've added the fonts to R using the procedures described in extrafont.

This pkg tries to take care of the loading bit on startup now (recent dev update).

The hack @bhaskarvk mentioned is due to knitr using a null PDF device behind the scenes, a process that tosses warnings since the context it executes in doesn't have the fonts loaded.

^^^ is one big reason ggplot2 doesn't do anything fancy with fonts in the pkg or examples since anything outside the basic fonts isn't going to work without some pain.

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ah. lemme poke at that

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Nope that didn't do it.
But adding the following does get rid of the warning.

knitr::opts_chunk$set(dev = 'svg')
options(device = function(file, width, height) {
  svg(tempfile(), width = width, height = height)
})

Ditto for png.

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from hrbrthemes.

@RoyalTS For the warning part, I had to

options(device = function(file, width, height) {
  png(tempfile(), width = width, height = height)
})

As described in yihui/knitr#729 (comment)

I tried with a bunch of formats like png/svg/jpg etc. and did not get any warnings.

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Could be related to yihui/knitr#729

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---
title: "hrbrthemes testbed"
output: html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

```{r message=FALSE}
library(hrbrthemes)
library(tidyverse)
```

### Arial Narrow

```{r}
ggplot(mtcars, aes(wt, mpg)) +
  geom_point() +
  labs(title="Arial Narrow", subtitle="This is a subtitle") +
  theme_ipsum()
```

### Roboto Condensed

```{r}
ggplot(mtcars, aes(wt, mpg)) +
  geom_point() +
  labs(title="Roboto Condensed", subtitle="This is a subtitle") +
  theme_ipsum_rc()
```

Generated no errors, messages or warnings on macOS Sierra & R 3.3.2

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OK with html_output I don't get the warning too. But If I change the output to flexdashboard::flex_dashboard, then I do get the warnings.

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It works if I use the work around mentioned in yihui/knitr#729 (comment).
So not an hrbrmstr issue then.
I'll let you poke at it a bit but feel free to close it.

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---
title: "hrbrthemes flexdashboard"
output: 
  flexdashboard::flex_dashboard:
    orientation: columns
    vertical_layout: fill
---

```{r setup, include=FALSE}
library(flexdashboard)
library(hrbrthemes)
library(tidyverse)
```

Column {data-width=650}
-----------------------------------------------------------------------

### Roboto Condensed

```{r}
ggplot(mtcars, aes(wt, mpg)) +
  geom_point() +
  labs(title="Roboto Condensed", subtitle="This is a subtitle") +
  theme_ipsum_rc()
```

Column {data-width=350}
-----------------------------------------------------------------------

### Arial Narrow

```{r}
ggplot(mtcars, aes(wt, mpg)) +
  geom_point() +
  labs(title="Arial Narrow", subtitle="This is a subtitle") +
  theme_ipsum()
```

### More Roboto Condensed

```{r}
ggplot(mtcars, aes(wt, mpg)) +
  geom_point() +
  labs(title="Roboto Condensed", subtitle="This is a subtitle") +
  theme_ipsum_rc()
```

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Just used straight flexdasboard base layout. No hacks.

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It works, but check your 'R Markdown' tab,
For me it shows

Output created: t2.html
There were 50 or more warnings (use warnings() to see the first 50)

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oh. aye! same here. one sec. i have a theory

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huh. wondering why it worked here? (no warnings here after i did that extrafont dance)

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what abt library(svglite); knitr::opts_chunk$set(dev = 'svglite') and no knitr hack but include the extrafont thing?

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Nope! What's more svglite doesn't render the font correctly (w/ or w/o knitr hack).

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I'm fine relying on the knitr hack FWIW. But you'll probably need to document the workaround.

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Wow. The inconsistencies between operating systems and even same OS but different devices is kind of disconcerting (my svglite versions work fine as do the other "hacks"). Def do need to doc this tho. Mebbe a GSOC to "fix font stuff in R" is in order (prbly a multi-GSOC effort).

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What's the fix for this if I want the output to be pdf_output?

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Oh, sorry, I meant setting output: pdf_document instead of output: html_document in the Rmd document, which I do all the time.

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> sessionInfo()
R version 3.3.2 (2016-10-31)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: macOS Sierra 10.12.3

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] hrbrthemes_0.1.0 ggplot2_2.2.1    dplyr_0.5.0     

loaded via a namespace (and not attached):
 [1] Rcpp_0.12.9.1    Rttf2pt1_1.3.4   knitr_1.15.1     magrittr_1.5     munsell_0.4.3    colorspace_1.3-2
 [7] R6_2.2.0         stringr_1.2.0    plyr_1.8.4       tools_3.3.2      hunspell_2.3     grid_3.3.2      
[13] gtable_0.2.0     DBI_0.5-14       extrafontdb_1.0  htmltools_0.3.5  yaml_2.1.13      lazyeval_0.2.0  
[19] assertthat_0.1   digest_0.6.12    rprojroot_1.2    tibble_1.2       purrr_0.2.2      evaluate_0.10   
[25] rmarkdown_1.3    labeling_0.3     stringi_1.1.2    scales_0.4.1     backports_1.0.5  extrafont_0.17  

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Installed as in "it shows up in Font Book"? Yes.

Are you compiling using pdfLaTeX or XeLaTeX?

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from hrbrthemes.

Ah, there might be an uncontrolled difference here: What device are you outputting to?

I can get my test document to work if I set knitr::opts_chunk$set(dev = 'png'), but not if I set knitr::opts_chunk$set(dev = 'pdf') and @bhaskarvk's solution seems to be one that's geared towards png, right?

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Wait a second: I need not only Arial Narrow to be installed, I also need that to be the PostScript and not the TrueType version of the font?

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I had the same error using these themes with LaTeX via RMarkdown on Windows. Doing a one-time font_import() like this comment suggests fixed it.

Other Windows people with pdf woes, try extrafont::font_import() first.

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I now remember that this is one reason import_roboto_condensed() exists in-package.

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i am getting this issue on the macOS with

---
output: 
  github_document:
    dev: svg

always_allow_html: yes
---

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I am getting the same error on a Windows machine.

Here is my yaml config for .Rmd file.

---
  output: github_document
---

{r, echo = FALSE}
knitr::opts_chunk$set(
  collapse = TRUE,
  dpi = 300,
  out.width = "100%",
  comment = "#>",
  fig.path = "man/figures/README-"
)

And here is session info:

devtools::session_info()
#> Session info -------------------------------------------------------------
#>  setting  value                       
#>  version  R version 3.5.1 (2018-07-02)
#>  system   x86_64, mingw32             
#>  ui       RTerm                       
#>  language (EN)                        
#>  collate  English_United States.1252  
#>  tz       America/New_York            
#>  date     2018-08-29
#> Packages -----------------------------------------------------------------
#>  package   * version date       source        
#>  backports   1.1.2   2017-12-13 CRAN (R 3.5.0)
#>  base      * 3.5.1   2018-07-02 local         
#>  compiler    3.5.1   2018-07-02 local         
#>  datasets  * 3.5.1   2018-07-02 local         
#>  devtools    1.13.6  2018-06-27 CRAN (R 3.5.1)
#>  digest      0.6.16  2018-08-22 CRAN (R 3.5.1)
#>  evaluate    0.11    2018-07-17 CRAN (R 3.5.1)
#>  graphics  * 3.5.1   2018-07-02 local         
#>  grDevices * 3.5.1   2018-07-02 local         
#>  htmltools   0.3.6   2017-04-28 CRAN (R 3.5.0)
#>  knitr       1.20.12 2018-08-13 local         
#>  magrittr    1.5     2014-11-22 CRAN (R 3.5.0)
#>  memoise     1.1.0   2017-04-21 CRAN (R 3.5.0)
#>  methods   * 3.5.1   2018-07-02 local         
#>  Rcpp        0.12.18 2018-07-23 CRAN (R 3.5.1)
#>  rmarkdown   1.10    2018-06-11 CRAN (R 3.5.0)
#>  rprojroot   1.3-2   2018-01-03 CRAN (R 3.5.0)
#>  stats     * 3.5.1   2018-07-02 local         
#>  stringi     1.2.4   2018-07-20 CRAN (R 3.5.1)
#>  stringr     1.3.1   2018-05-10 CRAN (R 3.5.0)
#>  tools       3.5.1   2018-07-02 local         
#>  utils     * 3.5.1   2018-07-02 local         
#>  withr       2.1.2   2018-03-15 CRAN (R 3.5.0)
#>  xfun        0.3     2018-07-06 CRAN (R 3.5.1)
#>  yaml        2.2.0   2018-07-25 CRAN (R 3.5.1)

Created on 2018-08-29 by the reprex package (v0.2.0.9000).

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