ncol {hyperSpec}R Documentation

The Number of Rows (Spectra), Columns, and Data Points per Spectrum of an hyperSpec Object)

Description

nrow yields the number of rows in x@data, i.e. the number of spectra in the hyperSpec object.

ncol returns the number of columns in x@data. I.e. the number of columns with additional information to each spectrum (e.g. "x", "y", ...) + 1 (for column spc containing the spectra).

nwl returns the number of columns in x@data$spc, i.e. the length of each spectrum.

dim returns all three values in a vector.

Usage

## S4 method for signature 'hyperSpec':
ncol(x)
## S4 method for signature 'hyperSpec':
nrow(x)
nwl (x)
## S4 method for signature 'hyperSpec':
dim(x)

Arguments

x a hyperSpec object

Value

nrow, ncol, and nwl return an integer.
dim return a vector of length 3.

Author(s)

C. Beleites

See Also

nrow, ncol, and dim

Examples

nrow (chondro)
ncol (chondro)
nwl  (chondro)
dim (chondro)

[Package hyperSpec version 0.95 Index]