lfit {sasLM}

Linear Fit

Description

Fits a least square linear model.

Usage

  lfit(x, y, eps=1e-8)

Arguments

x

a result of ModelMatrix

y

a column vector of response, dependent variable

eps

Less than this value is considered as zero.

Details

Minimum version of least square fit of a linear model

Value

coeffcients

beta coefficients

g2

g2 inverse

rank

rank of the model matrix

DFr

degree of freedom for the residual

SSE

sum of squares error

SST

sum of squares total

DFr2

degree of freedom of the residual for beta coefficient

Author(s)

Kyun-Seop Bae [e-mail]

See Also

ModelMatrix

Examples

  f1 = uptake ~ Type*Treatment + conc
  x = ModelMatrix(f1, CO2)
  y = model.frame(f1, CO2)[,1]
  lfit(x, y)