plotting the number of citations....

Here's what I did to find the number of papers published about chronic lymphocytic leukeamia.

# do search in pubmed on the web
# pubmed - "chronic lymphocytic leukaemia" or "chronic lymphocytic leukemia" or "CLL"
# get an option to download a csv file

The csv file needs to have the top line removed. I did this by opening in Excel and saving it again.

setwd("/Users/paulbrennan/Dropbox/R for Biochemists/PubMed")
data <- read.csv("timeline2.csv")
sum(data[2])
# 17,517 publications


library(ggplot2)

# draw a graph
ggplot(data, aes(year, count)) +
  geom_line() +
  ylab("Publications") + # y-label
  xlab("Year") + # x-label
  theme_bw()

Here is the output: