Shiny Developer Conference

Really enjoying RStudio‘s Shiny Developer Conference | Stanford University | January 2016.

Winston Chang just demonstrated profvis, really slick. You can profile code just by wrapping it in a profvis({}) block and the results are exported as interactive HTML widgets.

For example, running the R code below:

if(!('profvis' %in% rownames(installed.packages()))) {  devtools::install_github('rstudio/profvis')}library('profvis')nrow = 10000ncol = 1000data <- as.data.frame(matrix(rnorm(nrow*ncol),                             nrow=nrow,ncol=ncol))profvis({  d <- data  means <- apply(d,2,mean)  for(i in seq_along(means)) {    d[[i]] <- d[[i]] - means[[i]]  }})

Produces an interactive version of the following profile information:

Definitely check it out!

Many other great presentations, this one is just particularly easy to share.