mice (version 2.7)

mira: Multiply Imputed Repeated Analyses

Description

The mira object is generated by the with.mids(), lm.mids() and glm.mids() functions. The as.mira() function takes the results of repeated complete-data analysis stored as a list, and turns it into a mira object that can be pooled. Pooling requires that coef() and vcov() methods are available for fitted object. The mira class of objects has methods for the following generic functions: print, summary.

Usage

is.mira(x)
as.mira(fitlist)
## S3 method for class 'mira':
print(x)
## S3 method for class 'mira':
summary(object)

Arguments

x, object

An object containing the m fit objects of a complete data analysis, plus some additional information.

fitlist

An list of fitted objects, where each list element is a fit object. This can, for example, be produced by the by() function.

Value

• call
  The call that created the object.
• call1
  The call that created the mids object that was used in call.
• nmis
  An array containing the number of missing observations per column.
• analyses
  A list of m components containing the individual fit objects from each of the m complete data analyses.

References

Van Buuren, S., Groothuis-Oudshoorn, K. (2010) MICE: Multivariate Imputation by Chained Equations in R. Journal of Statistical Software, forthcoming. http://www.stefvanbuuren.nl/publications/MICE in R - Draft.pdf

See Also

with.mids, mids, mipo