ir_remove_missing: Removes empty data values in an object of class 'ir'

In ir: Functions to Handle and Preprocess Infrared Spectra

Removes empty data values in an object of class ir

Description

ir_remove_missing takes and object of class ir and removes all rows in the data.frames of the list column spectra that have NA intensity values (column y). Additionally, one can specify to remove rows in the ir object to discard if they contain empty spectra.

Usage

ir_remove_missing(x, remove_rows = FALSE)

Arguments

x	An object of class ir.
remove_rows	A logical value indicating if rows in x with empty spectra should be discarded (remove_rows = TRUE) or not (remove_rows = FALSE).

Value

x with cleaned spectra.

Examples

# create sample data with some missing rows and one entire missing spectra
x <-
   ir::ir_sample_data
x$spectra[[1]] <- x$spectra[[1]][0, ]
x$spectra[[2]][1:100, "y"] <- NA_real_

# remove missing values (but remove no rows in x)
x1 <-
   x %>%
   ir::ir_remove_missing(remove_rows = FALSE)

# remove missing values (and remove rows in x if a compete spectrum is
# missing)
x2 <-
   x %>%
   ir::ir_remove_missing(remove_rows = TRUE)

nrow(x)
nrow(x1)
nrow(x2)

ir documentation built on May 2, 2022, 5:06 p.m.