oii.summary: Print summary statistics for a numeric variable In oii: Crosstab and Statistical Tests for OII MSc Stats Course

Description

This function is designed to be like the built-in summary function but include a few additional values. If the input is not numeric, the built-in summary command is executed.

Usage

 1 oii.summary(x, extended = FALSE, warnings = FALSE)

Arguments

 x a numeric vector for which summary statistics should be generated. extended a logical value indicating whether additional statistics should be printed (see Value section). Defaults to FALSE stripped before the computation proceeds (defaults to TRUE). warnings a logical value indicating whether warnings should be shown (defaults to FALSE, no warnings).

Value

If x is not numeric, the built-in summary command is executed. If x is numeric (that is, is.numeric(x) returns TRUE), then a list with the following elements is returned:

 cases The number of non-missing values in x (Valid N) na The number of missing values in x (Missing N). mean The mean value of x after missing values are removed. See mean sd The standard deviation for values in x. See sd min The minimum/smallest value in x. See min max The maximum/largest value in x. See max

This function also calculates the following statistics, but these are not printed by default unless extended is set to TRUE

 var The variance of x after missing values are removed. See var median The median value of x after missing values are removed. See median p25 The 25th percentile of x after missing values are removed p75 The 75th percentile of x after missing values are removed skewness The skewness coefficient for x after missing values are removed. See skewness kurtosis The kurtosis coefficient for x after missing values are removed. See kurtosis