Little useless-useful R functions – Useless R poem for Valentine

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Gimmick not a poem, useless R code for your Valentine.

Code for this heart shaped useless poem:

library(tidyverse)

ValentinePoem <- function(){
df<- data_frame(sq = seq(-30, 0, 0.005),
           x1 = (sin(sq)*sin(sq)),
           x2 = x1*-1,
           y = sqrt(cos(sq))*cos(200*sq) + sqrt(abs(sq)) - 0.7*(4 - sq^2)^0.01
           ) %>%
gather(heart, x,x1,x2)
p <- ggplot(df, aes(x, y)) + geom_polygon(fill = "Red") + theme_void() +
  geom_text(size=6,aes(x=0, y=0, label="Errors are red, \n
      Reserved words are blue, \n
      I am here writing this useless\n
      R heart function for you!"), col="black") +  theme(legend.position = "none")
return(p)
}

And once you have the function persistent in your environment, just run:

# Run function
ValentinePoem()

And for the poets, here the R version of the poem:

Errors are red,
Reserved words are blue,
I am here writing this useless
R heart function for you!

Happy R-coding and happy Valentine’s day!

As always, code is available in at the Github in same Useless_R_function repository.

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This article is originally published at https://tomaztsql.wordpress.com
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