Monthly Archives: July 2015

finding “C_cov”

I was playing with R’s var() function the other day. Not sure whether it simply returns population variance by dividing over n or with Bessel’s correction by dividing over (n-1), I quickly entered some test data. So looks like it … Continue reading

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why is R’s as.Date() so slow ?

I have been using R for doing some simple data analysis and one common type of work has been importing data from csv file containing time-series data. The version at my work place is 3.0.2 and I use it under … Continue reading

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