Happy Valentine's Day in R

Here's a quick Happy Valentine's Day plot coded in R (Project R):



# Source: http://statistics.berkeley.edu/classes/s133/heart.r
heart = function(name){
t = seq(-1,1,len=5000)
x = sin(t) * cos(t) * log(abs(t))
y = sqrt(abs(t)) * cos(t)
plot(x,y,type='l',axes=FALSE,xlab='',ylab='')
text(0,.38,"Happy Valentine's Day",col='red',cex=2.5)
text(0,.32,name,col='red',cex=2.5)
}

heart1 = function(name){
t = seq(0,60,len=100)
plot(c(-8,8),c(0,20),type='n',axes=FALSE,xlab='',ylab='')
x = -.01*(-t^2+40*t+1200)*sin(pi*t/180)
y = .01*(-t^2+40*t+1200)*cos(pi*t/180)
lines(x,y)
lines(-x,y)
text(0,7,"Happy Valentine's Day",col='red',cex=2.5)
text(0,5.5,name,col='red',cex=2.5)
}

cat("Type (1 or 2)? ")
type = readLines(n=1)
cat("Name? ")
name = readLines(n=1)

if(type == 1)heart(name) else heart1(name)

Happy Valentine's Day!

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