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Yashi

Monday, June 3, 2013

Members Only: How to Make Slopegraphs in R

Members Only: How to Make Slopegraphs in R

Jun 03, 2013 07:43 am

Also known as specialized or custom line charts. Figure out how to draw lines with the right spacing and pointed in the right direction, and you've got your slopegraphs.

How to make a slopegraph

Central limit theorem animation

Jun 03, 2013 03:14 am

Central limit theorem animation

The central limit theorem:

In probability theory, the central limit theorem (CLT) states that, given certain conditions, the mean of a sufficiently large number of independent random variables, each with a well-defined mean and well-defined variance, will be approximately normally distributed.

Victor Powell animated said random variables falling into a normal distribution (which should look familiar to those who have seen that ping pong ball exhibit in exploratoriums and science museums). Play around with the number of bins and delay time and watch it go.

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