Functions to Handle and Preprocess Infrared Spectra

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Documentation for package ‘ir’ version 0.2.1

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$.ir Subsetting 'ir' objects
$<-.ir Subsetting 'ir' objects
anti_join.ir Filtering joins for an 'ir' object
arrange.ir Arrange rows in 'ir' objects by column values
bind Bind rows of 'ir' objects
cbind.ir Bind rows of 'ir' objects
distinct.ir Subset distinct/unique rows in 'ir' objects
extract.ir Extract a character column in an 'ir' object into multiple columns using regular expression groups
filter-joins Filtering joins for an 'ir' object
filter.ir Subset rows in 'ir' objects using column values
full_join.ir Mutating joins for an 'ir' object
group_by Group rows in 'ir' objects by one or more variables
group_by.ir Group rows in 'ir' objects by one or more variables
inner_join.ir Mutating joins for an 'ir' object
ir_add Add infrared spectra
ir_as_ir Generic to convert objects to class 'ir'
ir_as_ir.data.frame Generic to convert objects to class 'ir'
ir_as_ir.ir Generic to convert objects to class 'ir'
ir_average Averages infrared spectra within groups
ir_bc Performs baseline correction on infrared spectra
ir_bc_polynomial Performs baseline correction on infrared spectra using a polynomial
ir_bc_rubberband Performs baseline correction on infrared spectra using a rubberband algorithm
ir_bc_sg Performs baseline correction on infrared spectra using a Savitzky-Golay baseline
ir_bin Bins infrared spectra
ir_clip Clips infrared spectra to new wavenumber ranges
ir_divide Divide infrared spectra or divide infrared spectra by a numeric value
ir_drop_spectra Drops the column 'spectra' from an object is of class 'ir'
ir_flatten Converts objects of class 'ir' to objects of class 'ir_flat'
ir_flat_clean Cleans objects of class 'ir_flat'
ir_get_intensity Extracts intensities from spectra in an 'ir' object for specific spectral channels
ir_get_spectrum Extracts selected spectra from an object of class 'ir'
ir_get_wavenumberindex Gets the index of a defined wavenumber value for a spectrum
ir_import_csv Imports infrared spectra from various files
ir_import_spc Imports infrared spectra from Thermo Galactic's files
ir_interpolate Interpolates intensity values of infrared spectra in an 'ir' object for new wavenumber values
ir_interpolate_region Interpolates selected regions in infrared spectra in an 'ir' object
ir_multiply Multiply infrared spectra or multiply infrared spectra with a numeric value
ir_new_ir Creates an object of class 'ir'
ir_new_ir_flat Creates an object of class 'ir_flat'
ir_normalise Normalizes infrared spectra in an 'ir' object
ir_normalize Normalizes infrared spectra in an 'ir' object
ir_remove_missing Removes empty data values in an object of class 'ir'
ir_sample_data Sample object of class 'ir'
ir_smooth Smooths infrared spectra in an 'ir' object
ir_stack Stacks a matrix or data frame with spectra into a list column
ir_subtract Subtract infrared spectra
ir_to_absorbance Converts absorbance spectra to transmittance spectra or vice versa
ir_to_transmittance Converts absorbance spectra to transmittance spectra or vice versa
ir_variance_region Computes the variance of a spectrum in an 'ir' object in a given region
left_join.ir Mutating joins for an 'ir' object
max.ir Get the minima/maxima/range/median of x axis values or intensity values of infrared spectra
median.ir Get the minima/maxima/range/median of x axis values or intensity values of infrared spectra
min.ir Get the minima/maxima/range/median of x axis values or intensity values of infrared spectra
mutate Mutate an 'ir' object by adding new or replacing existing columns
mutate-joins Mutating joins for an 'ir' object
mutate.ir Mutate an 'ir' object by adding new or replacing existing columns
nest Nest and un-nest an 'ir' object
nest.ir Nest and un-nest an 'ir' object
Ops.ir Arithmetic operations for 'ir' objects
pivot_longer.ir Pivot an 'ir' object from wide to long
pivot_wider.ir Pivot an 'ir' object from wide to long
plot.ir Plots an object of class 'ir'
range Get the minima/maxima/range/median of x axis values or intensity values of infrared spectra
range.ir Get the minima/maxima/range/median of x axis values or intensity values of infrared spectra
rbind.ir Bind rows of 'ir' objects
rename Rename columns in 'ir' objects
rename.ir Rename columns in 'ir' objects
rename_with.ir Rename columns in 'ir' objects
rep.ir Replicate ir objects
right_join.ir Mutating joins for an 'ir' object
rowwise.ir Group input 'ir' objects by rows
select.ir Subset columns in 'ir' objects using column names and types
semi_join.ir Filtering joins for an 'ir' object
separate.ir Separate a character column in an 'ir' object into multiple columns with a regular expression or numeric locations
separate_rows.ir Separate a collapsed column in an 'ir' object into multiple rows
slice Subset rows in 'ir' objects using their positions
slice.ir Subset rows in 'ir' objects using their positions
slice_sample.ir Subset rows in 'ir' objects using their positions
subsetting Subsetting 'ir' objects
summarise Summarize each group in a 'ir' object to fewer rows
summarise.ir Summarize each group in a 'ir' object to fewer rows
summarize Summarize each group in a 'ir' object to fewer rows
summarize.ir Summarize each group in a 'ir' object to fewer rows
transmute.ir Mutate an 'ir' object by adding new or replacing existing columns
ungroup.ir Group rows in 'ir' objects by one or more variables
unite.ir Unite multiple columns in an 'ir' object into one by pasting strings together
unnest.ir Nest and un-nest an 'ir' object
[.ir Subsetting 'ir' objects
[<-.ir Subsetting 'ir' objects
[[.ir Subsetting 'ir' objects
[[<-.ir Subsetting 'ir' objects