| Author |
Comment/Response |
Rob Gross
|
 07/23/99 11:33am
I posted a message a few days ago about package writing. Well, I've experimented some more, and now I am even more puzzled. When reading the Mathematica book I found a package with a similar format as the package I was trying to test it out. This is the package from the book:
BeginPackage[''test2`'', ''Statistics`ConfidenceIntervals`'']
myMeanCI::usage = ''myMeanCI[list] gives my value for MeanCI.''
Begin[''`Private`'']
myMeanCI[list_] := MeanCI[list, KnownVariance -> 1.]
End[ ]
EndPackage[ ]
When I loaded this package, their were no conflicts and when I typed ?MeanCI, I got:
In[7]:=
?MeanCI
''MeanCI[list, options] returns a list {min, max} representing a confidence \
interval for the population mean, using the entries in list as a sample drawn \
from the population.''
Which is what is supposed to happen- it's supposed be given the definition assigned to it in the add on package.
My test package is this:
BeginPackage[''testpackage3`'', ''Calculus`DiracDelta`'']
Begin[''`Private`'']
us[x_]:= UnitStep[x]
End[ ]
EndPackage[ ]
When I load this, I get this message:
In[1]:=
<<Mine`testpack3`
UnitStep::''shdw'':
Symbol UnitStep appears in multiple contexts
Calculus`DiracDelta`, Global`; definitions in context
Calculus`DiracDelta` may shadow or be shadowed by other
definitions.
In when I type ?UnitStep, I get:
In[2]:=
?UnitStep
''Global`UnitStep''
What is the difference between both of these packages that would produce one that works properly and one that does not? I do not see any differences. Both of these packages are in initilization cells by the way. Someone please tell me- this is incredibly frustrating.
URL: , |
|
