ifelse

Conditional Colors and Shapes in plot() with ifelse()

October 9, 2012 | is.R()

Here’s an example of how to color your plot shapes and pch using an ifelse() statement. Ifelse() is handy as it creates an easy way to branch a function. The syntax is: ifelse(logical.condition, option1, option2). Meaning, if the logical condi... [Read more...]

Example 8.40: Side-by-side histograms

June 13, 2011 | Ken Kleinman

It's often useful to compare histograms for some key variable, stratified by levels of some other variable. There are several ways to display something like this. The simplest may be to plot the two histograms in separate panels.SASIn SAS, the most d...

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Example 8.21: latent class analysis

January 18, 2011 | Nick Horton

Latent class analysis is a technique used to classify observations based on patterns of categorical responses. Collins and Lanza's book,"Latent Class and Latent Transition Analysis," provides a readable introduction, while the UCLA ATS center has an o...

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Programming with R – Processing Football League Data Part II

December 3, 2010 | Ralph

Following on from the previous post about creating a football result processing function for data from the football-data.co.uk website we will add code to the function to generate a league table based on the results to date. To create the league table we need to count various things ... [Read more...]

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ifelse

Conditional Colors and Shapes in plot() with ifelse()

Example 8.40: Side-by-side histograms

Example 8.21: latent class analysis

Programming with R – Processing Football League Data Part II

ifelse

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