check_separation: Check a fitted fastglm model for signs of perfect or...
In SEQTaRget: Sequential Trial Emulation
View source: R/internal_multinomial.R
check_separation R Documentation
Check a fitted fastglm model for signs of perfect or quasi-complete separation
Description
Issues a warning when separation is detected. Because fastglm uses
IWLS and stops at its iteration limit rather than diverging to Inf,
separation is identified by two complementary signals:
Any coefficient with |coef| > 25 (logit > 25 implies
P > 1 - 1e-11, unreachable without separation).
Non-finite coefficients (Inf/-Inf/NaN),
which can occur with other solvers.
Usage
check_separation(model, label = "logistic regression")
Arguments
model
a fastglm model object
label
a short string identifying the model (used in the warning message)
SEQTaRget documentation built on May 21, 2026, 9:07 a.m.
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View source: R/internal_multinomial.R
| check_separation | R Documentation |
Check a fitted fastglm model for signs of perfect or quasi-complete separation
Description
Issues a warning when separation is detected. Because fastglm uses
IWLS and stops at its iteration limit rather than diverging to Inf,
separation is identified by two complementary signals:
Any coefficient with
|coef| > 25(logit > 25 implies P > 1 - 1e-11, unreachable without separation).Non-finite coefficients (
Inf/-Inf/NaN), which can occur with other solvers.
Usage
check_separation(model, label = "logistic regression")
Arguments
model |
a fastglm model object |
label |
a short string identifying the model (used in the warning message) |
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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