[R] how to include a factor or class Variable

[Bert Gunter]

Please post this to r-sig-mixed-models instead. Or, better yet,
consult your local statistician, as your question indicates a profound
lack of understanding that may require more back and forth discussion
than can occur on an internet help site.

-- Bert

On Thu, Nov 17, 2011 at 5:36 AM, arunkumar1111 <akpbond007 at gmail.com> wrote:
> Hi
>
> How to include a factor or class variable to a fixed effect of lmer
> function. when i included it throws an error. Please help
>
> My code
>
> data <- read.delim("C:/TestData/data.txt")
>
>  Mon=as.factor(data$Month)
>
>  lmerform= "Y~ X2 +X3 + Month:Mon + (1|State)+ (1+ X5|State)"
>  lmerfit=lmer(formula=lmerform,data=data)
>  summary(lmerfit)
>
> My data
>
> State   Year    Month   Y       X2      X3      X4      X5      X6
> GA      1960    1       27.8    397.5   42.2    50.7    78.3    65.8
> FA      1960    2       29.9    413.3   38.1    52      79.2    66.9
> GA      1961    3       29.8    439.2   40.3    54      79.2    67.8
> FA      1961    4       30.8    459.7   39.5    55.3    79.2    69.6
> GA      1962    1       31.2    492.9   37.3    54.7    77.4    68.7
> FA      1962    2       33.3    528.6   38.1    63.7    80.2    73.6
> GA      1963    3       35.6    560.3   39.3    69.8    80.4    76.3
>
>
> --
> View this message in context: http://r.789695.n4.nabble.com/how-to-include-a-factor-or-class-Variable-tp4079991p4079991.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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