# Shape factor

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**Shape factor** refers to a value that is affected by an object's [shape](/source/Shape) but is independent of its dimensions. It may refer to one of number of values in [physics](/source/Physics), [engineering](/source/Engineering), [image analysis](/source/Image_analysis), or [statistics](/source/Statistics).

In **physics**:

- Shape factor, or shaping factor, a performance measure for filters such as [band-pass filters](/source/Band-pass_filter#shape_factor_(filters))
- Shape factor of crystallites, a term in the [Scherrer equation](/source/Scherrer_equation) used in X-ray diffraction
- The [view factor](/source/View_factor) in the field of radiative heat transfer

In **engineering**:

- [Shape factor (boundary layer flow)](/source/Shape_factor_(boundary_layer_flow))
- Structural indices derived from [falling weight deflectometer](/source/Falling_weight_deflectometer) data

In **image analysis**:

- [Shape factor (image analysis and microscopy)](/source/Shape_factor_(image_analysis_and_microscopy)) including: - The [compactness measure of a shape](/source/Compactness_measure_of_a_shape)

In **statistics**:

- The [shape parameter](/source/Shape_parameter), sometimes referred to as the shape factor, of some probability distributions

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Adapted from the Wikipedia article [Shape factor](https://en.wikipedia.org/wiki/Shape_factor) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Shape_factor?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.