[R] arima forecast function

[warthog29]

I initially input the following commands, and got the corresponding errors:

install.packages(forecast)
Error in install.packages(forecast) : object "forecast" not found
> library(forecast)
Error in library(forecast) : there is no package called 'forecast'


I was finally able to get it installed by using the menus provided. Thanks
for your help. 


Nordlund, Dan (DSHS/RDA) wrote:
> 
>> -----Original Message-----
>> From: r-help-bounces at r-project.org 
>> [mailto:r-help-bounces at r-project.org] On Behalf Of warthog29
>> Sent: Tuesday, August 12, 2008 3:40 PM
>> To: r-help at r-project.org
>> Subject: [R] arima forecast function
>> 
>> 
>> hi:
>> 
>> I am trying to fit prediction intervals for an arima object. 
>> My search led
>> me to the link:
>> 
>> http://finzi.psych.upenn.edu/R/library/forecast/html/forecast.
>> Arima.html
>> 
>> which has the function "forecast", as I wanted. However, when 
>> I try to run
>> it in R, I get the message:
>> 
>> Error in plot(forecast(fit)) : could not find function "forecast"
>> 
>> Even the example provided on the page (having corrected the 
>> function "Arima"
>> to "arima") does not seem to work.
>> What's going on? Does the function "forecast" to an older 
>> version of R? Can
>> somebody please explain? 
>> -- 
> 
> Have you installed the forecast package on your system?  If you have, did
> you load the package? 
> 
> library(forecast)
> 
> 
> Hope this is helpful,
> 
> Dan
> 
> Daniel J. Nordlund
> Washington State Department of Social and Health Services
> Planning, Performance, and Accountability
> Research and Data Analysis Division
> Olympia, WA  98504-5204
>  
>  
> 
> ______________________________________________
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> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained, reproducible code.
> 
> 

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