integration

**This is an old revision of the document!**

Open Table or Figure or Fit Plot with initial data and select `Processing → Integrate`

menu item.

If your initial data to be integrated contains a baseline (usually constant or linear), you may want to subtract it from data **before** integrating. (A constant baseline will result in linearly growing integral.)

In such case the algorithm may be the following:

- Create Fit Plot with your initial table data
- Add a Fit Curve which simulates the baseline. You may specify a custom equation (Pro edition only)
- Specify Fit Interval so that it contains only noise points
- Fit the data by clicking
`Fit Sum`

button - Subtract the baseline fitting curve from data by checking
`Baseline`

checkbox in curves list - Use menu
`Processing → Integrate`

to integrate the plotted data without baseline.

To perform integration you should specify two columns: *x* and *y*. Missing values are ignored.

MagicPlot uses trapezoidal rule to compute the integral:

integration.1370292005.txt.gz · Last modified: Sun Nov 8 12:20:32 2015 (external edit)

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