February 2007

Working with ggplot

February 24, 2007 | 0 Comments

Hadley Wickham’s ggplot is a very interesting package. It makes beautiful graphics, integrates well with some of the other packages to allow you to superimpose the plots of various types of estimates on plots of data. In particular, it uses colours very well. The default colour schemes are aesthetically ... [Read more...]

Dropping columns in subset command

February 16, 2007 | 0 Comments

Use “select=c(var1,var2)” in the subset command to select var1 and var2. Use “select=-c(var1,var2)” in the subset command to drop var1 and var2. Technorati Tags: GNU-R [Read more...]

Statistics on Microsoft Excel

February 6, 2007 | 0 Comments

Here is an interesting document on problems of using Microsoft Excel for statistical analysis. http://gcrc.ucsd.edu/biostatistics/Excel.pdf Technorati Tags: statistics, excel, microsoft [Read more...]

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