Menu.linearModelDesign: RcmdrPlugin.DoE Linear Model Dialog for experimental data

In RcmdrPlugin.DoE: R Commander Plugin for (Industrial) Design of Experiments

RcmdrPlugin.DoE Linear Model Dialog for experimental data

Description

This dialog is used to specify a linear model to be fit by the lm function.

Usage

Menu.linearModelDesign(response = NULL)

Arguments

response

response to apply the linear model to

Details

The left model-formula box specifies the response variable to be used in the model; it may be a variable name or an expression evaluating to the response variable, such as log(income).

The right model-formula box specifies the right-hand (i.e., predictor) side of the model. If you are interested in the details, see lm.

You can type directly in the model formula boxes. Alternatively, double-clicking the left mouse button on a variable in the variable-list transfers it to the left-hand side of the model (if it is empty) or to the right-hand side. You can also enter operators and parentheses using the buttons above the formula.

For regular 2-level fractional factorial experiments, initially one often wants to look at all interactions up to a certain degree (e.g. 2 or 3). This is possible by selecting the degree of the model from the drop-down menu. For (half) normal plots of the effects, choose the degree high enough that there are nruns-1 effects in the plot.

If the active model is from this box or could have come from this box, the initial values of the left-hand-side and right-hand-side of the formula are retained from the previous model.

Author(s)

Ulrike Groemping, adapted to this situation from menu by John Fox

See Also

lm, FrF2

RcmdrPlugin.DoE documentation built on Oct. 29, 2024, 5:06 p.m.