Crop mrs_data object based on a frequency range.
crop_spec(mrs_data, xlim = c(4, 0.2), scale = "ppm")| mrs_data | MRS data. |
|---|---|
| xlim | range of values to crop in the spectral dimension eg xlim = c(4, 0.2). |
| scale | the units to use for the frequency scale, can be one of: "ppm", "hz" or "points". |
cropped mrs_data object.