Shifting Test Data

You can shift the origin of a set of data data to correct for slack or preloading conditions

See Also
Test Data Import Overview
About Test Data Processing
  1. From the Calibration Tools section of the action bar, click Calibration Setup .
  2. From the Test data sets section of the Calibration setup dialog box, double-click the name of the test data feature you want to edit.
  3. Click Zero Shift.
    The Zero Shift options appear above the test data plot.
  4. Select at least two points to use for the linear back extrapolation. You can select points by highlighting them in the Data table or by clicking their points in the plot.
  5. Click Evaluate.
    The plot adds a green preview curve to indicate where the data will appear after the shift.
    Important: Performing an evaluation always replaces the previous result.
  6. Click .

    Tip: You can also cancel the shift without making any changes by clicking .

The app shifts the test data and deletes any points that precede the selected points. The app adds points on the best-fit line at even intervals between the zero point and the first extrapolation point. This approach avoids the creation of large increments at the beginning of the shifted test data.