starting.vals.PPO {metaSDTreg} | R Documentation |
Starting values from PPO
Description
Used by metaSDTreg
to calculate starting values using the partial proportional odds model as implemented in ordinal. Internal function.
Usage
starting.vals.PPO(formula0, data0, control0, L0, K0, n.covar0)
Arguments
formula0 |
See |
data0 |
Data frame. |
control0 |
See |
L0 |
Number of levels in ordinal type 2 response. |
K0 |
Number of levels of ordinal response 'A'. |
n.covar0 |
Number of covariates aside from the 'signal' variable. |
Details
The function calls the clm
function using all.vars(update(formula0, . ~ . - signal))
as the formula argument and using ~ signal
as the nominal argument (also see metaSDTreg
for the meaning of the signal variable).
The coefficients of the signal variable are weighted together within the noise- and signal-specific type 2 responses using their inverse standard errors as weights.
Value
A named vector of starting values.
[Package metaSDTreg version 0.2.2 Index]