Sweep out Array Summaries
Usage
sweep(x, MARGIN, STATS, FUN="-", ...)
Arguments
x
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an array.
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MARGIN
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a giving the extents of x which correspond to STATS.
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STATS
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the summary statistic which is to be swept out.
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FUN
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the function to be used to carry out the sweep.
In the case of binary operators such as "/" etc.,
the function name must be quoted.
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...
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optional arguments to FUN.
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Value
An array with the same shape as x, but with the summary
statistics swept out.See Also
apply on which sweep is based;
scale for centering and scaling.Examples
data(attitude)
med.att <- apply(attitude, 2, median)
sweep(data.matrix(attitude), 2, med.att)# subtract the column medians