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R: Is a bootstrap of mean differences statistically significant

Last year, I wrote a blog post about bootstrapping (two-sample) the mean in R. Recently, someone contacted me with the question of how to get the corresponding percentile for a specific value of those bootstrapped differences. It’s something you need to answer the question if the difference is statistically significant… 

cURL: Protocol “‘https” not supported or disabled in libcurl

In this blog post, I would like to tackle a recurring phenomenon that I always solved via trial-and-error, depending on the machine I was working on. I think it’s time to get a conclusive answer to the single/double quote problem that occurs with cURL in de Windows Command Prompt. The… 

Solve “columns overlap but no suffix specified” in Pandas

Surprisingly, the Pandas error “columns overlap but no suffix specified”, is one I ran into surprisingly late. Solving it is usually very straightforward. We’ll tackle it in this blog post. First, let’s take a closer look at the error: “ValueError: columns overlap but no suffix specified: Index([<list of columns>], dtype=’object’)”…