Posts Tagged ‘ read data in Stata format ’

Example 7.39: Nelson-Aalen estimate of cumulative hazard

May 31, 2010
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Example 7.39: Nelson-Aalen estimate of cumulative hazard

In our previous example, we demonstrated how to calculate the Kaplan-Meier estimate of the survival function for time to event data. A related quantity is the Nelson-Aalen estimate of cumulative hazard. In addition to summarizing the hazard incurred ...

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Example 7.11: Plot an empirical cumulative distribution function from scratch

August 31, 2009
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Example 7.11: Plot an empirical cumulative distribution function from scratch

In example 7.8, we used built-in functions to produce an empirical CDF plot. But the empirical cumulative distribution function (CDF) is simple to calculate directly, and it might be useful to have more control over its appearance than is afforded by...

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Example 7.9: Get data from SAS into R

August 8, 2009
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Example 7.9: Get data from SAS into R

Some people use both SAS and R in their daily work. They might be more familiar with SAS as a tool for manipulating data and R preferable for plotting purposes. While our goal in the book is to enable people to avoid having to switch back and forth, ...

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