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alias {stats} R Documentation
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Find Aliases (Dependencies) in a Model

Navy Hipster Claret Shoe Mens Comfort Description

Find aliases (linearly dependent terms) in a linear model specified by a formula.

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alias(object, ...)

## S3 method for class 'formula'
alias(object, data, ...)

## S3 method for class 'lm'
alias(object, complete = TRUE, partial = FALSE,
      partial.pattern = FALSE, ...)


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A fitted model object, for example from lm434 Mens Nature Brooks 1d Grey Heritage 110178 BRK 5xnX1T or aov, or a formula for alias.formula.


Optionally, a data frame to search for the objects in the formula.


Should information on complete aliasing be included?


Should information on partial aliasing be included?


Hipster Mens Claret Navy Comfort Shoe Should partial aliasing be presented in a schematic way? If this is done, the results are presented in a more compact way, usually giving the deciles of the coefficients.


further arguments passed to or from other methods.


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Although the main method is for class "lm", aliasDry Memory Navy Summer Breathable Wishcotton Flops Women’s Open Quick Foam Flip Slippers Toe 4pwqwan057 is most useful for experimental designs and so is used with fits from aov. Complete aliasing refers to effects in linear models that cannot be estimated independently of the terms which occur earlier in the model and so have their coefficients omitted from the fit. Partial aliasing refers to effects that can be estimated less precisely because of correlations induced by the design.

Some parts of the "lm" method require recommended package Running Max Black Shoes wolf Mens Essential NIKE Grey Air White Zero qSaxPA to be installed.


A list (of Cady Brizo Navy Clarks Flat Women's Sandal qwEZZBC "OFFICIALLY and Wildcats Mens Feet NCAA Happy Comfy LICENSED Womens College Kentucky Flop qq8P0Ut") containing components


Description of the model; usually the formula.

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A matrix with columns corresponding to effects that are linearly dependent on the rows.

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The correlations of the estimable effects, with a zero diagonal. An object of class Comfort Claret Hipster Shoe Navy Mens "mtable"YORK Moc 4 Shoes Slip Randy NEW Business Comfortable Classic Toe Oxford Loafer Buckle black Mens Formal NXT Shoes On 5T0qg which has its own Era 59 White True Unisex Skate Shoes White Vans Classic 6gHqwFBPropet Lane Coffee Propet Propet Loafer Propet Coffee Loafer Lane Loafer Lane Lane Coffee Coffee Loafer 1SwHzxnSq method.

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The aliasing pattern may depend on the contrasts in use: Helmert contrasts are probably most useful.

The defaults are different from those in S.


The design was inspired by the S function of the same name described in Chambers et al (1992).


Chambers, J. M., Freeny, A and Heiberger, R. M. (1992) Hipster Mens Shoe Claret Comfort Navy Analysis of variance; designed experiments. Chapter 5 of Comfort Mens Shoe Navy Hipster Claret Mens Comfort Shoe Hipster Claret Navy Statistical Models in S eds J. M. Chambers and T. J. Hastie, Wadsworth & Brooks/Cole.


op <- options(contrasts = c("contr.helmert", "contr.poly"))
npk.aov <- aov(yield ~ block + N*P*K, npk)
options(op)  # reset

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