Blog Archives

Reading Excel data is easy with JGR and XLConnect

October 30, 2011
By

Despite the fact that Excel is the most widespread application for data manipulation and (perhaps) analysis, R's support for the xls and xlsx file formats has left a lot to be desired. Fortunately, the XLConnect package has been created to fill this void, and now JGR 1.7-8 includes integration with XLConnect package to load .xls

Read more »

Normality tests don’t do what you think they do

October 23, 2011
By
Normality tests don’t do what you think they do

Last week a question came up on Stack Overflow about determining whether a variable is distributed normally. Some of the answers reminded me of a common and pervasive misconception about how to apply tests against normality. I felt the topic was general enough to reproduce my comments here (with minor edits). Misconception: If your statistical analysis requires normality, it is

Read more »

Installing rgdal on a Mac

October 16, 2011
By

So, installing rgdal, which is an important R package for spatial data analysis can be a bit of a pain on the mac. Here are two ways to make it happen.   The Easy Way In R run: install.packages('rgdal',repos="http://www.stats.ox.ac.uk/pub/RWin") The Hard Way Download and install GDAL 1.8 Complete and  PROJ framework v4.7.0-2   from: http://www.kyngchaos.com/software/frameworks%29 Download the latest version of rgdal from CRAN.

Read more »

Open Street maps

October 8, 2011
By
Open Street maps

There have been some exciting developments in the Deducer ecosystem over the summer which should go into CRAN release in the next few months. Today I'm going to give a quick sneak peek at an Open Street Map - R connection with accompanying GUI. This post will just show the non-GUI components. The first part of the

Read more »

Search R-bloggers

Sponsors

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)