# Dimension Reduction - Diagnostic - Scree Plot

Plot the eigenvalues from a factor analysis or principal components analysis

Chart the eigenvalues from a factor analysis or principal components analysis (created, for example, using Dimension Reduction - Principal Components Analysis).

## How to Create

As a separate output in your report

1. Add the object by selecting from the menu Anything > Advanced Analysis > Dimension Reduction > Diagnostic > Scree PlotCreate > Dimension Reduction > Diagnostic > Scree Plot
2. Under Inputs select your PCA or factor analysis output

Within your PCA output created by Dimension Reduction - Principal Components Analysis

1. Change the Inputs > Display drop-down to Scree Plot

Example output:

## Options

Principal components analysis An R Output containing a factor analysis or principal components analysis. This does not need to be created with Dimension Reduction - Principal Components Analysis (you can make your own factor analysis or PCA), but the item does need to have a property called values.

## Code

var heading_text = "Scree Plot";
if (!!form.setObjectInspectorTitle)

library(flipDimensionReduction)