[R] help biglm.big.matrix; problem with weights
tlumley at u.washington.edu
Fri Jun 18 23:39:48 CEST 2010
On Tue, 15 Jun 2010, Rahim Hajji wrote:
> Hello colleagues,
> I have tried to use the package biglm. I want to specify a
> multivariate regression with a weight.
> I have imported a large dataset with the library(bigmemory). I load
> the library (biglm) and specified a regression with a weight. But I
> get everytime a error message like “object not found” or “`weights'
> must be a formula” or "error in eval(expr, envir, enclos)". I don’t
> understand this messages. Can sombody probably explain me what this
> I have read the documentation. I don’t understand the documentation
> for biglm.big.matrix. I found a sentence to weights that is as follow:
> A one-sided, “weight = single term formula specifying weights”. Who
> knows what that means?
> My Coding is:
> NIKA <- read.big.matrix("G:\\VAR.dat", header=TRUE, type="double",
> Reg <- biglm.big.matrix(formula = LAannualisiert ~ 0 + VAR01_2008 +
> VAR02_2008 + VAR03_2008 + VAR04_2008 + VAR05_2008 + VAR06_2008 +
> VAR07_2008 + VAR08_2008 + VAR09_2008 + VAR10_2008 + VAR11_2008 +
> VAR12_2008 + VAR13_2008 +
> VAR14_2008 + VAR15_2008 + VAR16_2008 + VAR17_2008 + VAR18_2008 +
> VAR19_2008 +
> VAR21_2008 + VAR22_2008 + VAR23_2008 + VAR24_2008 + VAR25_2008 +
> VAR26_2008 + VAR27_2008 +
> VAR28_2008 + VAR29_2008 + VAR30_2008 + VAR31_2008 + VAR32_2008 +
> VAR33_2008 + VAR34_2008 +
> VAR35_2008 + VAR36_2008 + VAR37_2008 + VAR38_2008 + VAR39_2008,
> weights = ~Gewicht , data = NIKA)
> Has sombody an idea, what my error is?
No, but it would help if you said exactly what the error message was for this code.
Thomas Lumley Assoc. Professor, Biostatistics
tlumley at u.washington.edu University of Washington, Seattle
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