[R-SIG-Finance] PerformanceAnalytics - Error in UseMethod("time<-")

[Gabor Grothendieck]

This seems to cause the problem:

library(PerformanceAnalytics)
library(fPortfolio)
example(charts.PerformanceSummary)

whereas this works (same statements different order):

library(fPortfolio)
library(PerformanceAnalytics)
example(charts.PerformanceSummary)

It appears that fPortfolio or one of the associated rmetrics packages
is masking time<-.zoo.  I suspect an S4 problem either with S4 itself
or with the implementation in rmetrics.

At any rate the workaround seems to be to load PerformanceAnalytics
after fPortfolio rather than before.

> packageDescription("PerformanceAnalytics")$Version
[1] "0.9.7.1"
> R.version.string
[1] "R version 2.9.1 Patched (2009-07-01 r48886)"
> packageDescription("fPortfolio")$Version
[1] "2100.77"


On Sat, Jul 11, 2009 at 12:39 PM, Gabor
Grothendieck<ggrothendieck at gmail.com> wrote:
> Always state what commands you are using so that others
> can reproduce the problem.    I suspect there is something
> wrong with your setup as this works for me:
>
> library(PerformanceAnalytics)
> example(charts.PerformanceSummary)
>
>> packageDescription("PerformanceAnalytics")$Version
> [1] "0.9.7.1"
>> R.version.string
> [1] "R version 2.9.1 Patched (2009-07-01 r48886)"
>
> From your error message it seems that the zoo package
> may not be present.  Make sure its installed and loaded.
>
> search()
>
> should list zoo.
>
> On Sat, Jul 11, 2009 at 10:28 AM, Heiko Mayer<Heiko-Mayer at gmx.de> wrote:
>> Hi,
>>
>> I have tried to create the PerformanceSummary chart in PerformanceAnalytics but always got an error. Even the example doesn't work showing the same error. I only get german error messages, but in english it should look like:
>> 'Error in UseMethod("time<-") : no applicable method for "time<-"'
>>
>>> data(edhec)
>>> charts.PerformanceSummary(edhec[,c("Funds.of.Funds","Long.Short.Equity")])
>> Fehler in UseMethod("time<-") : keine anwendbare Methode für "time<-"
>>
>> Has anyone an idea?
>>
>> Thanks,
>> Heiko
>> --
>>
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