Package index • PlotFTIR

Data Loading and Exchange

Functions for loading data or converting to and from other spectral R packages

read_ftir(): Read FTIR file
read_ftir_directory(): Read FTIR file
read_raman(): Read Raman file
chemospec_to_plotftir(): `ChemoSec` to `PlotFTIR` conversions
plotftir_to_chemospec(): Convert `PlotFTIR` data to `ChemoSpec` format
plotftir_to_ir(): Convert `PlotFTIR` data to `ir`
ir_to_plotftir(): Convert `ir` to `PlotFTIR` data format
check_ftir_data(): Check FTIR Data
print(<PlotFTIR_data>): Print PlotFTIR Data
biodiesel: FTIR Bio-diesel data
sample_spectra: FTIR example data

Spectral Mathematical Changes

Functions for changing or modifying spectra numerically

add_scalar_value() subtract_scalar_value(): Add or Subtract Scalar Value
average_spectra(): Average FTIR Spectra
absorbance_to_transmittance() transmittance_to_absorbance(): Convert Between Absorbance and Transmittance
normalize_spectra(): Normalize FTIR spectra
recalculate_baseline(): Recalculate Baseline
normalize_raman(): Normalize Raman Intensity Spectra
smooth_spectra(): Smooth Spectra Using Savitzky-Golay Filter
baseline_correct(): Correct Spectrum Baseline
find_peak_maxima(): Find Peak Maxima in Raman Spectra

Plotting and Graphical Changes

Functions for plotting specta and annotating or manipulating plots

plot_ftir(): Plot FTIR Spectra Overlaid
plot_ftir_stacked(): Plot FTIR in stacked format
plot_raman(): Plot Raman Spectra Overlaid
plot_raman_stacked(): Plot Raman in stacked format
add_band(): Add Band
add_wavenumber_marker(): Add a Marker at a Wavenumber
compress_low_energy(): Compress Low-Energy Region
highlight_sample(): Highlight Sample Spectra
move_plot_legend(): Move Plot Legend
get_plot_sample_ids(): Get Plot Sample IDs
rename_plot_sample_ids(): Rename Sample IDs in Plot
save_plot(): Save FTIR Plot
zoom_in_on_range(): Zoom in on a spectral range

Peak Fitting

Functions for finding peaks and performing deconvolution, and plotting the results

find_ftir_peaks(): Find FTIR Peaks
fit_peak_df(): Fitted Peaks Data.Frame
fit_peaks(): Fit Peaks
plot_components(): Plot Components
plot_fit_ftir_peaks(): Plot Fitted Peaks
plot_fit_residuals(): Plot Residuals