spectrum, dynamic range

# spectrum, dynamic range ## Syntax The value is a floating point number Drange > 1.0 ## Notes The value 100.0 is used as a default if the parameter is absent or has a value < 1.0. No error message is generated by an inappropriate value for this parameter. The recommended value for general use is 100.0. ## Description This parameter is used to normalize the intensity values of fragment ions, from spectrum to spectrum. For example, if Drange = 100.0, then the intensity of the most intense peak in a spectrum is set to 100, and all of the other intensities are linearly scaled to that intensity. Any peak with a scaled intensity of less than 1 is rejected as being outside of the dynamic range. Therefore, in addition to normalizing the spectra, it sets an effective relative threshold for peaks. see also: spectrum, minimum parent m+h | spectrum, minimum fragment mz spectrum, minimum peaks | spectrum, use noise suppression X! TANDEM API description project