Opinionated, typographic-centric ggplot2 themes and theme components
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---
output: rmarkdown::github_document
---
```{r pkg-knitr-opts, include=FALSE}
hrbrpkghelpr::global_opts()
```

```{r badges, results='asis', echo=FALSE, cache=FALSE}
hrbrpkghelpr::stinking_badges(
extra_lines = c(
"![downloads](https://cranlogs.r-pkg.org/badges/grand-total/hrbrthemes)",
"[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.2545422.svg)](https://doi.org/10.5281/zenodo.2545422)"
)
)
```

## hrbrthemes

Additional Themes and Theme Components for 'ggplot2'

----

This is a very focused package that provides typography-centric themes and theme components for ggplot2. It's a an extract/riff of [`hrbrmisc`](https://github.com/hrbrmstr/hrbrmisc) created by request.

The core theme: `theme_ipsum` ("ipsum" is Latin for "precise") uses Arial Narrow which should be installed on practically any modern system, so it's "free"-ish. This font is condensed, has solid default kerning pairs and geometric numbers. That's what I consider the "font trifecta" must-have for charts. An additional quality for fonts for charts is that they have a diversity of weights. Arial Narrow (the one on most systems, anyway) does not have said diversity but this quality is not (IMO) a "must have".

The following functions are implemented/objects are exported:

Themes:

- `theme_ipsum`: Arial Narrow
- `theme_ipsum_es`: Ccon Sans Condensed
- `theme_ipsum_rc`: Roboto Condensed
- `theme_ipsum_ps`: IBM Plex Sans font
- `theme_ipsum_pub`: Public Sans
- `theme_ipsum_tw`: Titilium Web
- `theme_modern_rc`: Roboto Condensed dark theme
- `theme_ft_rc`: Dark theme based on FT's dark theme (Roboto Condensed)

Scales (that align with various themes):

- `scale_color_ipsum`: Discrete color & fill scales based on the ipsum palette
- `scale_colour_ipsum`: Discrete color & fill scales based on the ipsum palette
- `scale_fill_ipsum`: Discrete color & fill scales based on the ipsum palette
- `scale_color_ft`: Discrete color & fill scales based on the FT palette
- `scale_colour_ft`: Discrete color & fill scales based on the FT palette
- `scale_fill_ft`: Discrete color & fill scales based on the FT palette
- `scale_x_comma`: X & Y scales with opinionated presets for percent & comma label formats
- `scale_x_percent`: X & Y scales with opinionated presets for percent & comma label formats
- `scale_y_comma`: X & Y scales with opinionated presets for percent & comma label formats
- `scale_y_percent`: X & Y scales with opinionated presets for percent & comma label formats

Palettes/Named Colors:

- `ipsum_pal`: A muted, qualitative color palette
- `ft_cols`: FT color palette
- `ft_pal`: A bright qualitative color palette
- `ft_text_col`: FT color palette

Fonts:

- `font_an`: Arial Narrow font name R variable aliases
- `font_es`: Econ Sans font name R variable aliases
- `font_es_bold`: Econ Sans font name R variable aliases
- `font_es_light`: Econ Sans font name R variable aliases
- `font_rc`: Roboto Condensed font name R variable aliases
- `font_rc_light`: Roboto Condensed font name R variable aliases
- `font_pub`: Public Sans font name R variable aliases
- `font_pub_bold`: Public Sans font name R variable aliases
- `font_pub_light`: Public Sans font name R variable aliases
- `font_pub_thin`: Public Sans font name R variable aliases
- `font_ps`: PlexSans font name R variable aliases
- `font_ps_light`: PlexSans font name R variable aliases
- `font_tw`: Titillium Web font name R variable aliases
- `font_tw_bold`: Titillium Web font name R variable aliases
- `font_tw_light`: Titillium Web font name R variable aliases

R Markdown:

- `ipsum`: ipsum R markdown template
- `ipsum_pdf`: ipsum R markdown template for PDF output

Utilities:

- `flush_ticks`: Makes axis text labels flush on the ends
- `ft_geom_defaults`: Change geom defaults from black to custom lights for the FT theme
- `gg_check`: Spell check ggplot2 plot labels
- `import_econ_sans`: Import Econ Sans Condensed font for use in charts
- `import_plex_sans`: Import IBM Plex Sans font for use in charts
- `import_roboto_condensed`: Import Roboto Condensed font for use in charts
- `import_titillium_web`: Import Titillium Web font for use in charts
- `modern_geom_defaults`: Change geom defaults from black to white for the modern theme
- `update_geom_font_defaults`: Update matching font defaults for text geoms

### Installation

```{r install-ex, results='asis', echo = FALSE, cache=FALSE}
hrbrpkghelpr::install_block()
```

### Usage

```{r message=FALSE, warning=FALSE, error=FALSE}
library(hrbrthemes)
library(gcookbook)
library(tidyverse)

# current verison
packageVersion("hrbrthemes")
```

### Base theme (Arial Narrow)

```{r an}
ggplot(mtcars, aes(mpg, wt)) +
geom_point() +
labs(x="Fuel efficiency (mpg)", y="Weight (tons)",
title="Seminal ggplot2 scatterplot example",
subtitle="A plot that is only useful for demonstration purposes",
caption="Brought to you by the letter 'g'") +
theme_ipsum()
```

### Roboto Condensed

```{r rc}
ggplot(mtcars, aes(mpg, wt)) +
geom_point() +
labs(x="Fuel efficiency (mpg)", y="Weight (tons)",
title="Seminal ggplot2 scatterplot example",
subtitle="A plot that is only useful for demonstration purposes",
caption="Brought to you by the letter 'g'") +
theme_ipsum_rc()
```

### New FT Theme!

```{r ft}
ggplot(mtcars, aes(mpg, wt)) +
geom_point(color = ft_cols$yellow) +
labs(x="Fuel efficiency (mpg)", y="Weight (tons)",
title="Seminal ggplot2 scatterplot example",
subtitle="A plot that is only useful for demonstration purposes",
caption="Brought to you by the letter 'g'") +
theme_ft_rc()
```

### IBM Plex Sans

```{r ps, fig.width=10, fig.height=7}
ggplot(mpg, aes(displ, hwy)) +
geom_jitter(aes(color=class, fill=class), size=3, shape=21, alpha=1/2) +
scale_x_continuous(expand=c(0,0), limits=c(1, 8), breaks=1:8) +
scale_y_continuous(expand=c(0,0), limits=c(10, 50)) +
scale_color_ipsum() +
scale_fill_ipsum() +
facet_wrap(~class, scales="free") +
labs(
title="IBM Plex Sans Test",
subtitle="This is a subtitle to see the how it looks in IBM Plex Sans",
caption="Source: hrbrthemes & IBM"
) +
theme_ipsum_ps(grid="XY", axis="xy") +
theme(legend.position="none") -> gg

flush_ticks(gg)
```

### Titillium Web

```{r tw, fig.width=10, fig.height=7}
ggplot(mpg, aes(displ, hwy)) +
geom_jitter(aes(color=class, fill=class), size=3, shape=21, alpha=1/2) +
scale_x_continuous(expand=c(0,0), limits=c(1, 8), breaks=1:8) +
scale_y_continuous(expand=c(0,0), limits=c(10, 50)) +
scale_color_ipsum() +
scale_fill_ipsum() +
facet_wrap(~class, scales="free") +
labs(
title="Titillium Web",
subtitle="This is a subtitle to see the how it looks in Titillium Web",
caption="Source: hrbrthemes & Google"
) +
theme_ipsum_tw(grid="XY", axis="xy") +
theme(legend.position="none") -> gg

flush_ticks(gg)
```

### Scales (Color/Fill)

```{r sc}
ggplot(mtcars, aes(mpg, wt)) +
geom_point(aes(color=factor(carb))) +
labs(x="Fuel efficiency (mpg)", y="Weight (tons)",
title="Seminal ggplot2 scatterplot example",
subtitle="A plot that is only useful for demonstration purposes",
caption="Brought to you by the letter 'g'") +
scale_color_ipsum() +
theme_ipsum_rc()
```

### Scales (Axis)

```{r ax1}
count(mpg, class) %>%
mutate(pct=n/sum(n)) %>%
ggplot(aes(class, pct)) +
geom_col() +
scale_y_percent() +
labs(x="Fuel efficiency (mpg)", y="Weight (tons)",
title="Seminal ggplot2 column chart example with percents",
subtitle="A plot that is only useful for demonstration purposes",
caption="Brought to you by the letter 'g'") +
theme_ipsum(grid="Y")
```

```{r ax2, fig.height=6}
ggplot(uspopage, aes(x=Year, y=Thousands, fill=AgeGroup)) +
geom_area() +
scale_fill_ipsum() +
scale_x_continuous(expand=c(0,0)) +
scale_y_comma() +
labs(title="Age distribution of population in the U.S., 1900-2002",
subtitle="Example data from the R Graphics Cookbook",
caption="Source: R Graphics Cookbook") +
theme_ipsum_rc(grid="XY") +
theme(axis.text.x=element_text(hjust=c(0, 0.5, 0.5, 0.5, 1))) +
theme(legend.position="bottom")
```

```{r ax3}
update_geom_font_defaults(font_rc_light)

count(mpg, class) %>%
mutate(n=n*2000) %>%
arrange(n) %>%
mutate(class=factor(class, levels=class)) %>%
ggplot(aes(class, n)) +
geom_col() +
geom_text(aes(label=scales::comma(n)), hjust=0, nudge_y=2000) +
scale_y_comma(limits=c(0,150000)) +
coord_flip() +
labs(x="Fuel efficiency (mpg)", y="Weight (tons)",
title="Seminal ggplot2 column chart example with commas",
subtitle="A plot that is only useful for demonstration purposes, esp since you'd never\nreally want direct labels and axis labels",
caption="Brought to you by the letter 'g'") +
theme_ipsum_rc(grid="X")
```

### Spellcheck ggplot2 labels

```{r sp, message=TRUE}
df <- data.frame(x=c(20, 25, 30), y=c(4, 4, 4), txt=c("One", "Two", "Three"))

ggplot(mtcars, aes(mpg, wt)) +
geom_point() +
labs(x="This is some txt", y="This is more text",
title="Thisy is a titlle",
subtitle="This is a subtitley",
caption="This is a captien") +
theme_ipsum_rc(grid="XY") -> gg

gg_check(gg)
```

### hrbrthemes Metrics

```{r cloc, echo=FALSE, message=FALSE, warning=FALSE, error=FALSE}
cloc::cloc_pkg_md()
```

### Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.