Below we represent some examples of how you can draw “hearts” in R!

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, lwd=4) lines(-x,y, lwd=4) text(0,7,"Predictive Hacks Wish You\n Happy Valentine's Day",col='blue',cex=2.5)

dat<- data.frame(t=seq(0, 2*pi, by=0.1) ) xhrt <- function(t) 16*sin(t)^3 yhrt <- function(t) 13*cos(t)-5*cos(2*t)-2*cos(3*t)-cos(4*t) dat$y=yhrt(dat$t) dat$x=xhrt(dat$t) with(dat, plot(x,y, type="l")) with(dat, polygon(x,y, col="red"))

library(dplyr) library(tidyr) library(broom) library(ggplot2) library(gganimate) d <- data_frame(t = seq(-pi, 0, .01), x1 = 16 * (sin(t)) ^ 2, x2 = -x1, y = 13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t)) %>% gather(side, x, x1, x2) heart <- d %>% inflate(t1 = max(d$t) + seq_len(20)) %>% arrange(((side == "x2") - 1) * t) g <- ggplot(d, aes(x, y, frame = round(t, 1))) + geom_path(aes(cumulative = TRUE, group = side)) + geom_polygon(aes(alpha = t1, frame = t1), data = heart, fill = "red", show.legend = FALSE) + geom_text(aes(x = 0, y = 0, label = "Happy Valentine's Day", alpha = t1, frame = t1), data = heart, size = 8, color = "white", show.legend = FALSE) + coord_equal() + theme_bw() s <- gg_animate(g, interval = .1, title_frame = FALSE)

## 1 thought on “Happy Valentine’s Day in R”

Great content! Super high-quality! Keep it up! 🙂