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__vma
2009 Oct 16
4
Cannot calculate mean() for double vector
I've been using R recently to analyze some data, but I'm having a
problem using the mean() function.
I imported the original data set as a vector of integers, x and then
calculated a exponential moving average of the data, x_ema. This part
worked fine.
Then, I tried to find the mean squared error between the original
series and the moving average, using mse = mean((x - x_ema)^2). This
gives N/A as a result, which seems to be the result of the mean
function. When I run mean() on x_ema, which is of data type double, it
alwa...