mutate for hyperSpec object

mutate adds new variables and preserves all the existing variables. Special column $spc contains the spectra matrix.

# S3 method for hyperSpec
mutate(.data, ...)

Arguments

.data

A data frame, data frame extension (e.g. a tibble), or a lazy data frame (e.g. from dbplyr or dtplyr). See Methods, below, for more details.

...

<data-masking> Name-value pairs. The name gives the name of the column in the output.

The value can be:

• A vector of length 1, which will be recycled to the correct length.

• A vector the same length as the current group (or the whole data frame if ungrouped).

• NULL, to remove the column.

• A data frame or tibble, to create multiple columns in the output.

Value

hyperSpec object.

See also

dplyr::mutate()

Examples

laser %>%
  mutate(t, filename)
#> hyperSpec object
#>    84 spectra
#>    3 data columns
#>    36 data points / spectrum
head # => results in a hyperSpec object
#> function (x, ...) 
#> UseMethod("head")
#> <bytecode: 0x7f9016ae6550>
#> <environment: namespace:utils>
laser %>%
  mutate(-spc) # => results in a hyperSpec object
#> hyperSpec object
#>    84 spectra
#>    4 data columns
#>    36 data points / spectrum
laser %>%
  mutate(spc2 = spc * 2) %>%
  mutate(spc2) %>%
  mutate(spc2 * 2) # => results in a hyperSpec object
#> hyperSpec object
#>    84 spectra
#>    5 data columns
#>    36 data points / spectrum