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Day 04 little helper evenstrings

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(This article was first published on r-bloggers STATWORX , and kindly contributed toR-bloggers)

We at STATWORX work a lot with R and we often use the same little helper functions within our projects. These functions ease our daily work life by reducing repetitive code parts or by creating overviews of our projects. At first, there was no plan to make a package, but soon I realised, that it will be much easier to share and improve those functions, if they are within a package. Up till the 24th December I will present one function each day from helfRlein . So, on the 4th day of Christmas my true love gave to me…


Day 04   little helper evenstrings
What can it do?

This little helper splits a given string into smaller parts with a fixed length. But why? Well I needed this function whilst creating a plot with a long title. The text was too long for one line and instead of just cutting it or let it run over the edges, I wanted to separate it nicely.


Day 04   little helper evenstrings
How to use it?

Given a long string like

long_title <- c("Contains the months: January, February, March, April, May, June, July, August, September, October, November, December")

We want to split it after split = "," with a maximum length of char = 60 .

short_title <- evenstrings(long_title, split = ",", char = 60)

The function has two possible output formats, which can be chosen by setting newlines = TRUE or FALSE :

\n

An other use case could be a message that is printed at the console with cat() :

cat(long_title) Contains the months: January, February, March, April, May, June, July, August, September, October, November, December cat(short_title) Contains the months: January, February, March, April, May, June, July, August, September, October, November, December Code for plot example p1 <- ggplot(data.frame(x = 1:10, y = 1:10), aes(x = x, y = y)) + geom_point() + ggtitle(long_title) p2 <- ggplot(data.frame(x = 1:10, y = 1:10), aes(x = x, y = y)) + geom_point() + ggtitle(short_title) multiplot(p1, p2) Overview

To see all the other functions you can either check out our GitHub or you can read about them here .

Have a merry advent season!

ber den Autor
Day 04   little helper evenstrings
Jakob Gepp

Numbers were always my passion and as a data scientist and statistician at STATWORX I can fullfill my nerdy needs. Also I am responsable for our blog. So if you have any questions or suggestions, just send me an email!

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