Summary statistics

A function to calculate summary statistics of a set of data.

Usage

summastat(x, sigf, varname, plot = TRUE)

Arguments

x

A vector of numeric values.

sigf

The number of significant figures to report (optional).

varname

The name of the variable (optional), character so in quotes e.g. "Clay content". If not used then the variable is called x on plots.

plot

If TRUE, a plot is part of the output. If FALSE, plot is not part of output (default is TRUE).

Value

A matrix containing the mean value, median value, first and third quartiles, sample variance, sample standard deviation, coefficient of skewness, octile skewness, coefficient of kurtosis and the number of probable outliers in a data set. A histogram with a boxplot over it and QQ plot of the variable x if plot=TRUE.

Author

Richard Murray Lark <murray.lark@nottingham.ac.uk>

Examples

x<-evapotranspiration$`ET(mm)`
summastat(x,2)

#>      Mean Median Quartile.1 Quartile.3 Variance SD Skewness Octile skewness
#> [1,]  290    280        230        340     7000 84     0.54            0.15
#>      Kurtosis No. outliers
#> [1,]     0.21            0