Hello colleagues,
I have tried to use the package bigmemory, biganalytics and 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 an 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 somebody probably explain me what this
means.
I have also read the documentation of biganalytics and bigglm. I don't
understand the sentence for weights: "A one-sided, weight = single term
formula specifying weights". I have no idea what this means. Has
somebody hints for me?
Thanks in advance for your help!
This is my coding:
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 + VAR02 +
VAR03 + VAR04 + VAR05 + VAR06 +
VAR07 + VAR08 + VAR09 + VAR10 + VAR11 + VAR12 + VAR13 +
VAR14 + VAR15 + VAR16 + VAR17 + VAR18 + VAR19 +
VAR21 + VAR22 + VAR23 + VAR24 + VAR25 + VAR26 + VAR27 +
VAR28 + VAR29 + VAR30 + VAR31 + VAR32 + VAR33 + VAR34 +
VAR35 + VAR36 + VAR37 + VAR38 + VAR39, weights = ~Gewicht , data =
NIKA)
summary(Reg)
Best regards form germany, berlin.
Rahim Hajji
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