specs.rms

0th

Percentile

rms Specifications for Models

Prints the design specifications, e.g., number of parameters for each factor, levels of categorical factors, knot locations in splines, pre-transformations, etc.

Keywords
models, methods, regression
Usage
specs(fit, ...)
## S3 method for class 'rms':
specs(fit, long=FALSE, \dots)

## S3 method for class 'specs.rms': print(x, \dots)

Arguments
fit
a fit object created with the rms library in effect
x
an object returned by specs
long
if TRUE, causes the plotting and estimation limits to be printed for each factor
...
ignored
Value

  • a list containing information about the fit and the predictors as elements

See Also

rms, rms.trans, latex.rms, datadist

Aliases
  • specs.rms
  • specs
  • print.specs.rms
Examples
set.seed(1)
blood.pressure <- rnorm(200, 120, 15)
dd <- datadist(blood.pressure)
options(datadist='dd')
L <- .03*(blood.pressure-120)
sick <- ifelse(runif(200) <= plogis(L), 1, 0)
f <- lrm(sick ~ rcs(blood.pressure,5))
specs(f)    # find out where 5 knots are placed
g <- Glm(sick ~ rcs(blood.pressure,5), family=binomial)
specs(g,long=TRUE)
options(datadist=NULL)
Documentation reproduced from package rms, version 2.0-2, License: GPL (>= 2)

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