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Monthly Archives: February 2007

Working with ggplot

February 24, 2007
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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 pleasing. It allows a flexible use

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Dropping columns in subset command

February 16, 2007
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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

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Page orientation problem in converting postscript files to pdf using ps2pdf

February 13, 2007
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A commonly reported problem with ps2pdf is that it does not always guess the page orientation right. A neat solution is here http://allendowney.com/essays/orientation/ I just edited the gs_statd.ps to define the wide page and added an alias in my bashrc called widepdf to convert files to pdf in the wide format. It works great now!!

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Statistics on Microsoft Excel

February 6, 2007
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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

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