| absorbance_to_transmittance | Convert Between Absorbance and Transmittance |
| add_band | Add Band |
| add_scalar_value | Add or Subtract Scalar Value |
| add_subtract_scalar | Add or Subtract Scalar Value |
| add_wavenumber_marker | Add a Marker at a Wavenumber |
| average_spectra | Average FTIR Spectra |
| biodiesel | FTIR Bio-diesel data |
| check_ftir_data | Check FTIR Data |
| chemospec_to_plotftir | 'ChemoSec' to 'PlotFTIR' conversions |
| compress_low_energy | Compress Low-Energy Region |
| conversion | Convert Between Absorbance and Transmittance |
| get_plot_sample_ids | Get Plot Sample IDs |
| highlight_sample | Highlight Sample Spectra |
| ir_to_plotftir | Convert 'ir' to 'PlotFTIR' data format |
| move_plot_legend | Move Plot Legend |
| normalize_spectra | Normalize FTIR spectra |
| plotftir_to_chemospec | Convert 'PlotFTIR' data to 'ChemoSpec' format |
| plotftir_to_ir | Convert 'PlotFTIR' data to 'ir' |
| plot_ftir | Plot FTIR Spectra Overlaid |
| plot_ftir_stacked | Plot FTIR in stacked format |
| read_ftir | Read FTIR file |
| read_ftir_directory | Read FTIR file |
| recalculate_baseline | Recalculate Baseline |
| rename_plot_sample_ids | Rename Sample IDs in Plot |
| sample_spectra | FTIR example data |
| save_plot | Save FTIR Plot |
| subtract_scalar_value | Add or Subtract Scalar Value |
| transmittance_to_absorbance | Convert Between Absorbance and Transmittance |
| zoom_in_on_range | Zoom in on a spectral range |