# Controlling Composite Training: Minimum Images Fraction

For a feature to be included in a composite pattern, it must be present in at least the minimum images fraction (ImageFraction) of the images.

For example, if you have 4 training images and the minimum images fraction is set to 0.5 (50%), then a feature will have to be present in at least 2 images to be included in the Composite Model. If you have 5 training images and the minimum images fraction is set to 0.5 (50%), then a feature will have to be present in 3 (60% of the) images to exceed the 50% threshold.

The following figure shows the effect of the ImageFraction parameter.