CODEWITHSUNDEEP
rplot
Youcha
Youcha

Reputation: 1554

Plot percentages on y-axis

I'm plotting a graph using this

plot(dates,returns)

I would like to have the returns expressed as percentages instead of numbers. 0.1 would become 10%. Also, the numbers on the y-axis appear tilted 90 degrees on the left. Is it possible to make them appear horizontally?

Upvotes: 21

Views: 58195

Answers (3)

Puriney
Puriney

Reputation: 2485

library(scales)
dates <-  1:100
returns <- runif(100)
yticks_val <- pretty_breaks(n=5)(returns)
plot(dates, returns, yaxt="n")
axis(2, at=yticks_val, lab=percent(yticks_val))

Highlights:

  1. No need to explicitly add "%"
  2. Manually fix the number of y-ticks to be consistent with further plots. Here I chose 5.

See

Combining two answers together @rengis @vladiim

Upvotes: 4

vladiim
vladiim

Reputation: 1960

If you use ggplot you can use the scales package.

library(scales)
plot + scale_y_continuous(labels = percent)

Upvotes: 11

johannes
johannes

Reputation: 14413

Here is one way using las=TRUE to turn the labels on the y-axis and axis() for the new y-axis with adjusted labels. 

dates <-  1:10
returns <- runif(10)

plot(dates, returns, yaxt="n")
axis(2, at=pretty(returns), lab=pretty(returns) * 100, las=TRUE)

Upvotes: 22

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