Analysis in R: Useful for color management “chroma” package

公開日 2023-01-26

Color schemes are one of the most difficult things to worry about when presentetion. Here is a package that can help you solve your problem.

The color “#4b61ba” used is similar to the color used in Danmachi’s “God’s Example String”.

In addition, here are some color codes that can be used for color schemes in presentation materials.

・Playing with R: Could it be used for color schemes in presentation materials? Character hair color?
　https://www.karada-good.net/analyticsr/r-83/

Package version is 0.2. Checked with R version 4.2.2.

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医学研究のためのRによる統計解析入門 | 加葉田大志朗, 新谷歩

Amazonで加葉田大志朗, 新谷歩の医学研究のためのRによる統計解析入門。アマゾンならポイント還元本が多数。

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Install Package

Run the following command.

#Install Package
install.packages("devtools")
devtools::install_github("jiho/chroma")

Example

See the command and package help for details.

#Loading the library
library("chroma")

#Plot the specified color:show_col command
#Array is x-directional, separated by "," is y-directional
show_col(c("#e1e6ea", "#505457"), c("#4b61ba", "#a87963"))

#Saturation adjustment:saturate,desaturate command
#Saturation range:amount option;1-10
n <- "#4b61ba"
show_col(c(saturate(n, amount = 5), n, desaturate(n, amount = 5)))

#Color channel:channel command
#Color channel:model option;rgb,hsv,hsl,hcl,lch,lab,cmyk
channel(x = "#4b61ba", model = "rgb", channel = "g")
g
97

#Enter CMYK numbers to obtain color code:cmyk command
cmyk(c = .3, m = .2, y = 0.6, k = 0.1)
[1] "#a1b85c"
#check
show_col("#a1b85c")

#Color temperature:color_temperature command
show_col(color_temperature(5200))