R help - Sep 2008 - Confusion over syntax in a package

Hello,

I am new to R and I am attempting to use the ProbForecastGOP package
for some research I am conducting.

The package works fine when I call the functions from the command line
as the examples instruct.

However, I am attempting to step through some of the functions so that
I can obtain a better idea of what is going on.  I have come to the
following command:

calc.dist(coord1.day.index,coord2.day.index,id.day.index)

I know what this is supposed to do, it is calculating the geographic
distance between a series of latitude and longitude points.  However,
I am informed by R that no such function exists.  I searched through
the whole package for a function declaration, rooted through the R
help and googled for the same and came up with nothing.  Interestingly
there is a second command that also won't function on its own:

calc.difference(gop.res.day)

Same result, I cannot find any listing of a 'calc' function.

The strange thing is that everything works fine when I run the example
commands from the command lines, when the function is called instead
of calling each line individually, it works perfectly.

Can anyone shed light on what 'calc' may be?

Many thanks,
Ryan Glover

See ?getAnywhere , and the description of NAMESPACE in 'Writing R 
Extensions'.

getAnywhere("calc.dist") and ProbForecastGOP:::calc.dist  both work
for
me.

On Thu, 25 Sep 2008, Ryan Glover wrote:
> Hello,
>
> I am new to R and I am attempting to use the ProbForecastGOP package
> for some research I am conducting.
>
> The package works fine when I call the functions from the command line
> as the examples instruct.
>
> However, I am attempting to step through some of the functions so that
> I can obtain a better idea of what is going on.  I have come to the
> following command:
>
> calc.dist(coord1.day.index,coord2.day.index,id.day.index)
>
> I know what this is supposed to do, it is calculating the geographic
> distance between a series of latitude and longitude points.  However,
> I am informed by R that no such function exists.  I searched through
> the whole package for a function declaration, rooted through the R
> help and googled for the same and came up with nothing.  Interestingly
> there is a second command that also won't function on its own:
>
> calc.difference(gop.res.day)
>
> Same result, I cannot find any listing of a 'calc' function.
>
> The strange thing is that everything works fine when I run the example
> commands from the command lines, when the function is called instead
> of calling each line individually, it works perfectly.
>
> Can anyone shed light on what 'calc' may be?
Not calc, calc.dist.  I don't think there is a function calc() in the 
package.
> Many thanks,
> Ryan Glover
>
> ______________________________________________
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> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595