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Christoph_J
  • Member for 11 years, 1 month
  • Last seen more than 4 years ago
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I'm a PhD student in finance from the Technical University of Munich. I do quite a bit of empirical work, almost exclusively in R.

For more information, check out my blog.

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134
Convert column classes in data.table
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How to drop columns by name pattern in R?
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Alternative to expand.grid for data.frames
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How do I rename a data-frame in a for-loop
33
How do I override a non-visible function in the package namespace?