Publications by civilstat

PSA: R’s rnorm() and mvrnorm() use different spreads

Quick public service announcement for my fellow R nerds: R has two commonly-used random-Normal generators: rnorm and MASS::mvrnorm. I was foolish and assumed that their parameterizations were equivalent when you’re generating univariate data. But nope: Base R can generate univariate draws with rnorm(n, mean, sd), which uses the standard deviat...

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