hyperSpec (version 0.98-20110927)

mean_sd: Mean and Standard Deviation...

Description

Mean and Standard Deviation Calculate mean and standard deviation, and mean, mean $\pm$ one standard deviation, respectively.

Usage

## S3 method for class 'numeric':
mean_sd(x, na.rm=TRUE, ...)
## S3 method for class 'matrix':
mean_sd(x, na.rm=TRUE, ...)

## S3 method for class 'hyperSpec':
mean_sd(x, na.rm=TRUE, ..., short="mean_sd", user=NULL, date=NULL)

## S3 method for class 'numeric':
mean_pm_sd(x, na.rm=TRUE, ...)

## S3 method for class 'matrix':
mean_pm_sd(x, na.rm=TRUE, ...)

## S3 method for class 'hyperSpec':
mean_pm_sd(x, na.rm=TRUE, ..., short="mean_sd", user=NULL, date=NULL)

## S3 method for class 'hyperSpec':
mean(x, na.rm=TRUE, ..., short="mean", user=NULL, date=NULL)

## S3 method for class 'hyperSpec':
quantile(x, probs=seq(0, 1, 0.25), na.rm=TRUE, names="num", ...,
    short="quantile", user=NULL, date=NULL)

Arguments

x

a numeric vector

na.rm

handed to mean and sd

...

ignored (needed to make function generic)

short,user,date

handed to logentry.

probs

the quantiles, see quantile

names

"pretty" results in percentages (like quantile's names = TRUE), "num" results in the row names being as.character (probs) (good for ggplot2 getting

Value

• mean_sd,numeric-method: mean_sd returns a vector with two values (mean and standard deviation) of x.

  mean_sd,matrix-method: mean_sd (matrix) returns a matrix with the mean spectrum in the first row and the standard deviation in the 2nd.

  mean_sd,hyperSpec-method: mean_sd returns a hyperSpec object with the mean spectrum in the first row and the standard deviation in the 2nd.

  mean_pm_sd,numeric-method: mean_pm_sd returns a vector with 3 values: mean - 1 sd, mean, mean + 1 sd

  mean_pm_sd,matrix-method: mean_pm_sd (matrix) returns a matrix containing mean - sd, mean, and mean + sd rows.

  mean_pm_sd,hyperSpec-method: For hyperSpec objects, mean_pm_sd returns a hyperSpec object containing mean - sd, mean, and mean + sd spectra.

  mean,hyperSpec-method: For hyperSpec object, mean returns a hyperSpec object containing the mean spectrum.

  quantile,hyperSpec-method: For hyperSpec object, quantile returns a hyperSpec object containing the respective quantile spectra.

Details

mean_sd,numeric-method: These functions are provided for convenience.

See Also

mean, sdmean, sdquantile

Examples

mean_sd (flu [,, 405 ~ 410])

mean_sd (flu$spc)

mean_sd (flu)

mean_pm_sd (flu$c)

mean_pm_sd (flu$spc)

mean_pm_sd (flu)

plot (mean (chondro))

plot (quantile (chondro))