toy | R Documentation |
Data frame with known relationship between responses and predictors useful to illustrate multicollinearity concepts. Created from vi using the code shown in the example.
data(toy)
Data frame with 2000 rows and 5 columns.
Columns:
y
: response variable generated from a * 0.75 + b * 0.25 + noise
.
a
: most important predictor of y
, uncorrelated with b
.
b
: second most important predictor of y
, uncorrelated with a
.
c
: generated from a + noise
.
d
: generated from (a + b)/2 + noise
.
These are variance inflation factors of the predictors in toy
.
variable vif
b 4.062
d 6.804
c 13.263
a 16.161
Other example_data:
vi
,
vi_predictors
,
vi_predictors_categorical
,
vi_predictors_numeric
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.