Posts Tagged ‘ Data Preparation ’

Let’s Party!

June 6, 2012
By
Let’s Party!

Exploring whether regression coefficients differ between groups is an important part of applied econometric research, and particularly for research with a policy based objective. For example, a government in a developing country may decide to introduce free school lunches in an effort to improve childhood health. However, if this treatment is known to only improve

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Dummies for Dummies

April 19, 2012
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Dummies for Dummies

Most R functions used in econometrics convert factor variables into a set of dummy/binary variables automatically. This is useful when estimating a linear model, saving the user from the laborious activity of manually including the dummy variables as regressors. However, what if you want to reshape your dataframe so that it contains such dummy variables?

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How Safe is Your Money?

August 24, 2010
By
How Safe is Your Money?

The FDIC regularly publishes a Failed Bank List and related statistics.  This post uses data in the original XLS from the FDIC web site which is formatted for human consumption to produce the charts below using R.  Note that 2010 data be...

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