getX: Design matrix for a fit possibly on a new data frame
In gmonette/spida2: Collection of tools developed for the Summer Programme in Data Analysis 2000-2012
getX R Documentation
Design matrix for a fit possibly on a new data frame
Description
This function return the X matrix for a fit possibly based on a different data frame than the model.
It performs a function very close to that of model.matrix except that model.matrix
expects the variable for the LHS of the formula to be in the data set, ostensibly in order to remove rows
for which the LHS variable(s) are NA. In addition, getX attaches the argument data set as an attribute.
Usage
getX(fit, data = getModelData(fit))
Arguments
fit
a fitted object with formula method
data
(default NULL) a data frame on which to evaluate the design matrix
Details
Extending getX to new classes merely requires a getData method. The formula
method is also used but usually already exitsts.
Value
a design matrix
gmonette/spida2 documentation built on Aug. 11, 2024, 7:52 p.m.
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| getX | R Documentation |
Design matrix for a fit possibly on a new data frame
Description
This function return the X matrix for a fit possibly based on a different data frame than the model.
It performs a function very close to that of model.matrix except that model.matrix
expects the variable for the LHS of the formula to be in the data set, ostensibly in order to remove rows
for which the LHS variable(s) are NA. In addition, getX attaches the argument data set as an attribute.
Usage
getX(fit, data = getModelData(fit))
Arguments
fit |
a fitted object with formula method |
data |
(default NULL) a data frame on which to evaluate the design matrix |
Details
Extending getX to new classes merely requires a getData method. The formula
method is also used but usually already exitsts.
Value
a design matrix
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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