Articles by ricckli

introduction to R: learning by doing (part 2: plots)

July 10, 2012 | 0 Comments

Lets go one with the second part of learning R by doing R (you will find the first part here. As we have used vectors, matrices and loops in the first part, we will concentrate on graphics in this one. but first we will need data to plot: Sometimes you ... [Read more...]

introduction to R: learning by doing (part 1)

July 9, 2012 | 0 Comments

Geography is often about statistics as it is the basis for fast exchange of information: providing a mean and standard deviation to the audience is often much easier then showing raw data: Learning a script language for this purpose can be a hard-ass work. But I think it is more ... [Read more...]

MatLab, SAS, STATA, SPSS, Excel users: Try R, damn it!

July 2, 2012 | 0 Comments

Due to my work with a multitude of statistical packages in my career I may be able to evaluate a lot of them. I’ve first used Excel for my calculations as most of the normal users do. I like the idea behind a spreadsheet and the combination of data ... [Read more...]

reproducible documents/analytics in R: the knitr package

June 26, 2012 | 0 Comments

When I am working in new institutions and I am asking: “Do you have a document management system?” I often get the answer:”Yap, we are using folders” … OKAY. Making analysis, developing applications and keeping an eye on code, data and applications make this even harder as it has to ... [Read more...]

reading shape files in R

June 24, 2012 | 0 Comments

If I would like to adjust a shape file I normally used the way over an excel file or a text file to get a table and to join this with an existing shape file. Due to the sp and rgdal packages in R you can manipulate shapefiles directly in ... [Read more...]

setting your working directory permanently in R

June 24, 2012 | 0 Comments

Most of us R users are using a special working directory for the daily work in R. But I was bothered in typing everytime in my command line prior using R. Also using this line at the first position in scripts was not pleasent enough. So how to get around ... [Read more...]

useR! 2012 Conference

April 25, 2012 | 0 Comments

“Spatial data is, quite literally, everwhere” (Barry Rowlingson) this is so true! And because of that you guys will have the chance to take part in a great tutroial on using R for managing geospatial data, transforming, making maps and working with OGC standards. So visit this years useR! conference ... [Read more...]

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