Fit Multiple Peaks on the Curve with Individual Baseline Settings

• Purpose

            This app can perform piecewise peak fitting, allowing for the definition of separate baselines for individual regions and performing peak deconvolution within each region. 

• Installation

            Download the file "Piecewise Peak Fitting.opx", and then drag-and-drop onto the Origin workspace. An icon will appear in the Apps gallery window.

• Operation

            Activate a worksheet or graph with XY data, and then click the app icon to bring up the dialog. Then you can add/delete Region of Interest (ROIs), customize the baseline for each ROI, set peaks within each ROI and output the result of fitted peak information into a workbook. 

Dialog Settings:

• Left Preview Panel: It displays the source data plot in the bottom layer and the zoomed-in peaks in the top layer. the user can adjust the size and position of the window to manually define the peak range in the lower layer.
• Right Panel
  • Settings tab:
    • Input: choose the dataset in the current folder for examination.
    • <: Navigate to the previous ROI window.
    • >: Navigate to the next ROI window.
    • Add Region: Add an ROI window on the plot.
    • Delete Region: Delete the current ROI window on the plot.
    • Auto Find Peaks:
      • Smoothing Window Size: Remove noise without affecting the overall curve shape.
      • Direction: Detect positive or negative peaks.
      • Local Points: Window size for local maximum peak finding.
      • Peak Filtering: Remove small peaks.
      • Remove Current Peaks on the Plot: Reset peaks on the graph.
    • Left X: Set the left boundary of the current peak window.
    • Right X: Set the right boundary of the current peak window.
    • Baseline: Choose different methods to define the baseline. Please refer to Baseline Mode.
    • Peak Function: Set a peak function for the fitting.
    • Peak Number: Specify the number of peaks in the current ROI window.
    • Fitted Peak Properties: Fitted Peak Position, Area, Width, Height. 
    • Output Result: Output the peak infos into a workbook with the current peak settings. 
    • Batch Process Data Source: It supports the following dataset scope: Current Worksheet, Current Workbook, Current Folder, Specify Files.
    • Batch Processing: Perform the batch processing using the datesets specified in Batch Process Data Source.
  • Save/Load tab:
    • Save: Save the settings to a file.
    • Load: Load the settings from a file.
    • Delete: Delete setting file.