Description Usage Arguments Value Author(s) Examples
Calculate and plot the Factor Model Variance Inflaction Factor Values for a fitted model.
A VIF for a single explanatory variable (style factor) is obtained using the time series of R-squared values obtained from
the regression of that variable against all other explanatory variables.
So, at least 2 explanatory variables are required in exposure.vars
of fitted model to find the VIF.
1 2 |
ffmObj |
an object of class |
digits |
an integer indicating the number of decimal places to be used for rounding. Default is 2. |
isPrint |
logical. if |
isPlot |
logical. if |
lwd |
line width relative to the default. Default is 2. |
stripText.cex |
a number indicating the amount by which strip text in the plot(s) should be scaled relative to the default. 1=default, 1.5 is 50% larger, 0.5 is 50% smaller, etc. |
axis.cex |
a number indicating the amount by which axis in the plot(s) should be scaled relative to the default. 1=default, 1.5 is 50% larger, 0.5 is 50% smaller, etc. |
title |
logical. This argument is mainly used for the documentation purpose when you need a plot without any title.
If |
... |
potentially further arguments passed. |
ffmRsq
returns the sample mean values and plots the time series of corresponding R squared values
and the Variance Inflation factors depending on the values of rsq
, rsqAdj
and VIF
.
The time series of the output values are also printed if isPrint
is TRUE
Avinash Acharya
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