Tools> Histogram of Measurements

Plots a histogram from a .CSV or .TXT file of previously-made measurements. These files can be output from tools such as Measure Features, Color By Measurements, and Local Measurements.

1. Load

  • To begin, load previously generated measurements. These must be .TXT or .CSV files with continuous rows and columns.

2. Load, Export

  • Load: You can start over and create a new histogram image by loading a new feature measurements file.
  • Export: You can export the existing feature measurements results to a spreadsheet.

3. Measurement Stats

Displays the mean, standard deviation, min, and max of the selected measurements.

4. Bins

Determines the number of bins to divide the histogram into. The default value is auto-calculated to provide an effective histogram shape. Typing in a new value sets a manual number of bins. Erase the typed in value anytime to revert back to the auto-calculated value.

5. Export Data, Save Plot

  • Export Data: Export histogram data to spreadsheet.
  • Save Plot: Save plot as image.

6. Unfold Histogram

Estimates the shape of the 3D histogram which underlies the original [1]. Launches a window which explains the process and requirements, and allows selection of the input and output measurements.

7. Input and Output Measurements

  • Input Measurements: Select the type of measurements to be unfolded. Choose between Equivalent Diameters or Areas.
  • Output Measurements: Select the type of measurements to output from the unfolding. Choose between Equivalent Diameters or Volumes.

8. Original, Unfolded, and Edit

  • Original: Show original histogram.
  • Unfolded: Show unfolded histogram.
  • Edit: Edit histogram unfolding parameters

References

[1] Payton, E. 2012. “Revisiting Sphere Unfolding Relationships for the Stereological Analysis of Segmented Digital Microstructure Images.” Journal of Minerals and Materials Characterization and Engineering 11 (3): 221–242.

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