R: Get the "when.measured" attribute

getWhenMeasured {photobiology} | R Documentation

## Get the "when.measured" attribute

### Description

Function to read the "when.measured" attribute of an existing generic_spct or a generic_mspct.

### Usage

    getWhenMeasured(x, ...)

    ## Default S3 method:
    getWhenMeasured(x, ...)

    ## S3 method for class 'generic_spct'
    getWhenMeasured(x, ...)

    ## S3 method for class 'summary_generic_spct'
    getWhenMeasured(x, ...)

    ## S3 method for class 'generic_mspct'
    getWhenMeasured(x, ..., idx = !is.null(names(x)))

### Arguments

`x` | a generic_spct object
`...` | Allows use of additional arguments in methods for other classes.
`idx` | logical whether to add a column with the names of the elements of spct

### Value

POSIXct An object with date and time.

### Methods (by class)

- `default`: default

- `generic_spct`: generic_spct

- `summary_generic_spct`: summary_generic_spct

- `generic_mspct`: generic_mspct

### Note

If x is not a `generic_spct` or an object of a derived class `NA` is returned.

The method for collections of spectra returns the a tibble with the correct times in TZ = "UTC".

### See Also

Other measurement metadata functions: `getInstrDesc`, `getInstrSettings`, `getWhatMeasured`, `getWhereMeasured`, `get_attributes`, `isValidInstrDesc`, `isValidInstrSettings`, `setInstrDesc`, `setInstrSettings`, `setWhatMeasured`, `setWhenMeasured`, `setWhereMeasured`, `trimInstrDesc`, `trimInstrSettings`

### Examples

    getWhenMeasured(sun.spct)

[Package photobiology version 0.9.21 Index]