Thread: Need help with multipeak fitting with Igor Pro regarding data with uneven baseline

How to go with multipeak fitting in Igor Pro, when the data set upon graphing shows the curve not touching the baseline at some major part


Is it fine to use multiple types of models for data fit (like Gaussian/ Lorentzian/ Voigt/ Log Normal,..) ? How to go about fitting when :
1- in the experimental plot , one region has curve above the baseline and other part has the curve going exactly well with the baseline.