The first step shown here is the elimination of noise using the NoiseFilter. The now smoothed raw data can be further processed by subtracting the baseline with the BaselineFilter. Then use the PeakPicker to find all peaks in the baseline-reduced raw data.
We offer two different smoothing filters: a Gaussian filter and a Savitzky Golay filter, which can be selected by the option 'type
'. If you want to use the Savitzky Golay filter, or our BaselineFilter with non equally spaced raw data, e.g. TOF data, you have to generate equally spaced data by setting the 'resampling
' option.
peak_bound
- The minimum intensity of a peak in a MS scanpeak_bound_ms2_level
- The minimum intensity of a peak in a MS/MS scanfwhm_bound
- The minimal width of a peaksignal_to_noise
- The minimum signal-to-noise ratio a raw data point has to reach in order to be considered a peak. The lower this value is, the more low-intensity peaks will be reported.scale
- Scale of the wavelet (can be set equal to 'fwhm_bound') Generated Tue Apr 1 15:36:40 2008 -- using doxygen 1.5.4 | OpenMS / TOPP 1.1 |