Re: 2nd arg to BeginPackage

*To*: mathgroup at smc.vnet.net*Subject*: [mg24770] Re: 2nd arg to BeginPackage*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>*Date*: Thu, 10 Aug 2000 00:31:51 -0400 (EDT)*Organization*: Universitaet Leipzig*References*: <8mr1c5$1mj@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Hi, since the Statistic contex does not introduce any symbols. You must give the correct context that add symbold for CDF[] this is "Statistics`Common`DistributionsCommon`" for NormalDistribution[] this is "Statistics`NormalDistribution`" BeginPackage[ "TestPkg`", {"Statistics`Common`DistributionsCommon`", "Statistics`NormalDistribution`"}]; ff::usage = "Some function that uses CDF." Begin["`Private`"]; ff[a_] := CDF[NormalDistribution[0, 1], a] End[]; (*Private context*) EndPackage[]; and all works fine ?? ff Some function that uses CDF. ff[TestPkg`Private`a_] := CDF[NormalDistribution[0, 1], TestPkg`Private`a] Regards Jens Daniel Reeves wrote: > > My first question is, there seems to be a discrepancy between the > documentation for BeginPackage: > BeginPackage["Package`", {"Needed1`", "Needed2`", ...}] > vs how standard packages use it: > BeginPackage["Package`", "Needed1`", "Needed2`", ...] > > My next question is, why doesn't either form do what I expect here: > > BeginPackage["TestPkg`", "Statistics`"]; > ff::usage = "Some function that uses CDF." > Begin["`Private`"]; > ff[a_] := CDF[NormalDistribution[0,1], a] > End[]; (* Private context *) > EndPackage[]; > > In the definition of ff, it thinks the context for CDF (and > NormalDistr) is TestPkg`Private` instead of Statistics`... > > How can I avoid spelling out the contexts for things like CDF? > > Thanks a lot, > Daniel Reeves >