[R] Error in lm() function

[Mohamed Lajnef]

Hi Bogaso,

Try this
 vecnames<-names(test[,2:11])
 fmla <- as.formula(paste("test[,1] ~ ", paste(vecnames, collapse= "+")))
res<-lm(fmla)

Regards
M


Bogaso a écrit :
> Hi all,
>
> I wanted to have a seasonality study like whether a particular month has
> significant effect as compared to others. Here is my data :
>
> 0.10499	0	0	1	0	0	0	0	0	0	0	0
> 0.00259	0	0	0	1	0	0	0	0	0	0	0
> -0.06015	0	0	0	0	1	0	0	0	0	0	0
> 0.10721	0	0	0	0	0	1	0	0	0	0	0
> 0.03597	0	0	0	0	0	0	1	0	0	0	0
> 0.10584	0	0	0	0	0	0	0	1	0	0	0
> 0.02063	0	0	0	0	0	0	0	0	1	0	0
> -0.03509	0	0	0	0	0	0	0	0	0	1	0
> -0.03485	0	0	0	0	0	0	0	0	0	0	1
> 0.01632	0	0	0	0	0	0	0	0	0	0	0
> 0.06844	1	0	0	0	0	0	0	0	0	0	0
> -0.01766	0	1	0	0	0	0	0	0	0	0	0
> 0.00989	0	0	1	0	0	0	0	0	0	0	0
> 0.11673	0	0	0	1	0	0	0	0	0	0	0
> 0.01789	0	0	0	0	1	0	0	0	0	0	0
> -0.00323	0	0	0	0	0	1	0	0	0	0	0
> 0.06811	0	0	0	0	0	0	1	0	0	0	0
> -0.01292	0	0	0	0	0	0	0	1	0	0	0
> -0.12244	0	0	0	0	0	0	0	0	1	0	0
> -0.06645	0	0	0	0	0	0	0	0	0	1	0
> -0.03355	0	0	0	0	0	0	0	0	0	0	1
> 0.02308	0	0	0	0	0	0	0	0	0	0	0
> -0.11711	1	0	0	0	0	0	0	0	0	0	0
> 0.06116	0	1	0	0	0	0	0	0	0	0	0
> 0.02832	0	0	1	0	0	0	0	0	0	0	0
> 0.01441	0	0	0	1	0	0	0	0	0	0	0
> -0.04412	0	0	0	0	1	0	0	0	0	0	0
> 0.05558	0	0	0	0	0	1	0	0	0	0	0
> 0.08363	0	0	0	0	0	0	1	0	0	0	0
> -0.01063	0	0	0	0	0	0	0	1	0	0	0
>
> i.e. all explanatory variables here are dichotomous. However once I run lm()
> i got following error :
>
>   
>> lm(dat[,1]~dat[,-1])
>>     
> Error in model.frame.default(formula = dat[, 1] ~ dat[, -1],
> drop.unused.levels = TRUE) : 
>   invalid type (list) for variable 'dat[, -1]'
>
> Can anyone please tell me what to do?
>
> Best,
>
>   


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Mohamed Lajnef
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