[R] Different varable lengths

[Petr PIKAL]

> Hi!
> 
> I'm trying to do a lm() test on three objects. My problem is that R 
protests
> and says that the variable lengths differ for one of the objects
> (Sweden.GDP.gap). But I have double checked that the number of 
observations

You shall check it again. BTW How did you checked it?

> are the same. All three objects should contain 9 observations but R only
> accepts 9 observations in two of the objects. The third must have 10! 
Very

No, It has only 8. Why do you think it shall have 10?

> confusing because there is no 10th observation!

You are right, there is no 10th and also no 9th observation.

> 
>  # Adjusted Real rate - P
> > Sweden.p.adjust <- c(4.70243, 1.3776655, 1.117755, 1.6695175, 1.59282,
> > 1.1017625, -0.04295, 2.2552875, 0.0552875)
> > 
> > # Adjusted Inflation deviation
> > Sweden.infl.dev.adjust  <- c(0.110382497, -0.261612509, 0.040847515,
> > -0.195062497, -0.234362485, -0.023408728, 0.206421261, -0.079401261,
> > 0.071828752)
> > 
> > # Adjusted GDP-gap
> > Sweden.GDP.gap.adjust <- c(0.673792123, 1.196706756, 1.196131539,
> > 0.646944002, -0.312886525, -1.180620213 -0.525964648, -0.369401194,
> > -0.003280389)
> > 
> > # OLS regression using ADJUSTED data.#
> > Sweden.Taylor.real.adjust <- lm(Sweden.p.adjust ~ 
Sweden.infl.dev.adjust +
> > Sweden.GDP.gap.adjust)
> Error in model.frame.default(formula = Sweden.p.adjust ~
> Sweden.infl.dev.adjust +  : 
>   variable lengths differ (found for 'Sweden.GDP.gap.adjust')
> 
> Why is this happening?

Because your third variable has only 8 values.

Regards
Petr

> 
> / Saint
> 
> 
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