How to get the same linetype in R language

Today, I would like to share with you how R language obtains the relevant knowledge of the same linetype. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article, let's take a look at it.

For example, linetype = 4 or dotdash all get the same linetype

> df f f + geom_line (linetype = 4) > f + geom_line (linetype = "dotdash") what is R language R is a language and operating environment for statistical analysis and drawing. It belongs to a free, free and open source software of the GNU system. It is an excellent tool for statistical calculation and statistical mapping.

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