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Beginners statistics: proportionsExample, with R, Definition and Use, Simple formula, Tips and Notes, Test yourself, References Download R R is Free, very powerful, and does the boring calculations & graphs for scientists.Example, with RA proportion is simply another name for a mean of a set of zeroes and ones.Or you could find the proportion of ones with R
Definition and UseA proportion is the relative frequency of items with a given characteristic in a given set (or p=f/n).
A percentage (%) is simply a proportion times 100.
Simple formulaAssuming y is a list of n items, coded as either 0 or 1:the proportion of 1's in y is sum(y)/n Or, if f of n items are classed as 'A':
Tips and Notes
Test yourselfxxxxxxUseful references
