email habits over time

[This article was first published on idle thoughts » R, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

I was curious if my sleeping/waking habits had really changed over the years – I definitely don’t feel I work as late now as when I was 22, but it’s hard to tell. To test this, I looked over all of the timestamps of mail I’ve sent in the past few years and tried to make a pretty graph.

I’m not sure how meaningful it is, but thanks to ggplot, it is pretty, at least.

The plotting code is straightforward — try it out!

library("ggplot2")
library("reshape")
getData = function() {
SOURCE=Sys.glob('/home/power/.thunderbird/*/*/*/*/Sent Mail')
return(readLines(SOURCE))
}
getMatches = function(data) {
matched_lines = grep('^Date:.*, .*-0\\d+', data, value=T)
return(gsub('Date:.*, (.*-0\\d+).*', '\\1', matched_lines))
}
lines = getData()
matches = getMatches(lines)
dates = lapply(matches, function(f) {strptime(f, format="%d %b %Y %H:%M:%S %z")})
df = ldply(dates, unlist)
df$year = df$year + 1900
df_counts = count(df, vars=c("year", "hour"))
for (year in df_counts$year) {
m = df_counts$year == year
df_counts$freq[m] = df_counts$freq[m] / sum(df_counts$freq[m])
}
p = ggplot(df_counts, aes(x=year, y=hour)) +
scale_x_continuous(limits=c(2004, 2012)) +
scale_y_datetime() +
geom_tile(aes(fill=freq)) +
scale_fill_gradient()
show(p)

To leave a comment for the author, please follow the link and comment on their blog: idle thoughts » R.

R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)