About warning
On 16/5/21 11:28 pm, Ben Bolker wrote:
?You can look at your results to figure out which coefficients are missing, or you can use attr(getME(m,"X"), "col.dropped") to see which columns of the original model frame were dropped.? (It would be useful if I or someone would write a more detailed diagnostic function to report which columns of the original model matrix were collinear ...)
There is the findLinearCombos() function in the caret package: https://www.rdocumentation.org/packages/caret/versions/6.0-86/topics/findLinearCombos