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
means.
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:
library(bigmemory)
library(biganalytics)
library(biglm)
help(read.big.matrix)
NIKA <- read.big.matrix("G:\\VAR.dat", header=TRUE, type="double",
sep="\t")
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)
summary(Reg)
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
Thomas Lumley Assoc. Professor, Biostatistics
tlum...@u.washington.edu University of Washington, Seattle
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