Monthly Archives: January 2010

Soical Network Analysis in R

January 3, 2010
By

Presentation by Drew Conway on August 6, 2009 at the NYC R Statistical Programming Meetup on how to perform basic social network analysis in R using the igraph package.

Read more »

directlabels: Adding direct labels to ggplot2 and lattice plots

January 3, 2010
By
directlabels: Adding direct labels to ggplot2 and lattice plots

Sometimes it is preferable to label data series instead of using a legend. This post demonstrates one way of using labels instead of legend in a ggplot2 plot. > library(ggplot2) > p <- ggplot(dfm, aes(month, value, group = City, colour = City)) + geom_line(size = 1) + opts(legend.position = "none") > p + geom_text(data =

Read more »

Rcpp 0.7.1

January 2, 2010
By

Two weeks after the Rcpp 0.7.0 release, Romain and I are happy to announce release 0.7.1 of Rcpp. It is currently in the incoming section of CRAN and has been accepted into Debian. Mirrors will catch up over the next few days, in the meantime the local page is available for download too.A lot has...

Read more »

Rcpp 0.7.1

January 2, 2010
By

Two weeks after the Rcpp 0.7.0 release, Romain and I are happy to announce release 0.7.1 of Rcpp. It is currently in the incoming section of CRAN and has been accepted into Debian. Mirrors will catch up over the next few days, in the meantime the local...

Read more »

Rcpp 0.7.1

January 2, 2010
By

Two weeks after the Rcpp 0.7.0 release, Romain and I are happy to announce release 0.7.1 of Rcpp. It is currently in the incoming section of CRAN and has been accepted into Debian. Mirrors will catch up over the next few days, in the meantime the local page is available for download too.A lot has...

Read more »

LSPM Examples

January 2, 2010
By
LSPM Examples

I have received several requests for additional LSPM documentation over the past couple days and a couple months ago I promised an introduction to LSPM.In this long-overdue post, I will show how to optimize a Leverage Space Portfolio with the LSPM pa...

Read more »

Arctic Sea Ice Extent Trends With R

January 1, 2010
By
Arctic Sea Ice Extent Trends With R

This post shows how to retrieve on-line Arctic Sea Ice Extent data from the National Snow and Ice Data Center (NSIDC), consolidate the data files, generate a csv file, summarize and plot the data and post it as a Google Docs so that interested readers can download and analyze this data series themselves. Links to

Read more »