[R] Error message in vars package

[Peter Ehlers]

On 2013-03-14 11:10, Jose Iparraguirre wrote:
> Hi
>
> I'm getting an error message with the roots() function in the vars package.
> Even the example in the help file comes up with an error:
>
>> data(Canada)
>> var.2c <- VAR(Canada, p = 2, type = "const")
>> roots(var.2c)
> Error in UseMethod("roots") :
>    no applicable method for 'roots' applied to an object of class "varest"
>
> The error is odd, for the help file explains that one of the arguments of the roots() function is an object of class "varest" generated by VAR() -exactly the class of object that var.2c is:
>
>> class(var.2c)
> [1] "varest"
>
>
> May it be that I'm using the latest version of R -in Windows- (ie 2.15.3 ), perhaps?
>
> Jose
>
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You really need to provide the information requested in Posting Guide.

The example works just fine for me.

My sessionInfo():
R version 2.15.3 Patched (2013-03-01 r62110)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_Canada.1252  LC_CTYPE=English_Canada.1252
[3] LC_MONETARY=English_Canada.1252 LC_NUMERIC=C
[5] LC_TIME=English_Canada.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] vars_1.5-0        lmtest_0.9-30     urca_1.2-7        strucchange_1.4-7
[5] sandwich_2.2-9    zoo_1.7-9         MASS_7.3-23

loaded via a namespace (and not attached):
[1] grid_2.15.3     lattice_0.20-13 tools_2.15.3

Peter Ehlers