mean_sd: Mean and Standard Deviation Calculate mean and standard...

In hyperSpec: Work with Hyperspectral Data, i.e. Spectra + Meta Information (Spatial, Time, Concentration, ...)

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

Description

These functions are provided for convenience.

Usage

## S4 method for signature 'numeric'
mean_sd(x, na.rm = TRUE, ...)

## S4 method for signature 'matrix'
mean_sd(x, na.rm = TRUE, ...)

## S4 method for signature 'hyperSpec'
mean_sd(x, na.rm = TRUE, ...)

## S4 method for signature 'numeric'
mean_pm_sd(x, na.rm = TRUE, ...)

## S4 method for signature 'matrix'
mean_pm_sd(x, na.rm = TRUE, ...)

## S4 method for signature 'hyperSpec'
mean_pm_sd(x, na.rm = TRUE, ...)

## S4 method for signature 'hyperSpec'
mean(x, na.rm = TRUE, ...)

## S4 method for signature 'hyperSpec'
quantile(x, probs = seq(0, 1, 0.5), na.rm = TRUE, names = "num", ...)

Arguments

x	a numeric vector
na.rm	handed to mean and sd
...	ignored (needed to make function generic)
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 the order of the quantiles right). Otherwise, no names are assigned.

Value

mean_sd returns a vector with two values (mean and standard deviation) of x.

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

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

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

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

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

For hyperSpec object, mean returns a hyperSpec object containing the mean spectrum.

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

Author(s)

C. Beleites

See Also

mean, sd

mean, sd

quantile

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))

hyperSpec documentation built on May 29, 2024, 7:28 a.m.