Run Package vs Needs
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From: Miguel Galrinho on 30 Jun 2010 01:50 I have a package in Mathematica that works fine when I open the .m file and click "Run Package". However, when I type Needs[.] in a notebook, the package doesn't load 100%, only some functions do. The file begins with BeginPackage[".", {.}] like I think it was supposed to. I don't know what might be wrong. Can anyone help? Thanks. Miguel Galrinho
From: David Park on 30 Jun 2010 08:06 1) Evaluate $UserBaseDirectory and look for the Applications folder there. 2) In the Applications folder create a folder for your package application, MyApplication for example. 3) Say that your package is saved as MyPackage.m. (You might also have a MyPackage.nb if you are using that method to create the .m file.) Put these files in the MyApplication folder. 4) Write the BeginPackage statement as: BeginPackage["MyApplication`MyPackage`", {dependent packages if any}] Notice that the first argument of BeginPackage gives a kind of file path from the Applications folder to the package file. 5) Load the package with: Needs["MyApplication`MyPackage`"] or <<MyApplication`MyPackage` 6) But you say that some routines don't load with your Needs statement. All that I can think is that they are not mentioned in the public section of the package with usage statements. Use a MyRoutine::usage = "MyRoutine[args...] with a description."; for each routine that you want exported by the package. Put these statements after the BeginPackage statement but before the Begin["`Private`"] statement. David Park djmpark(a)comcast.net http://home.comcast.net/~djmpark/ From: Miguel Galrinho [mailto:miguel(a)galrinho.com] I have a package in Mathematica that works fine when I open the .m file and click "Run Package". However, when I type Needs[.] in a notebook, the package doesn't load 100%, only some functions do. The file begins with BeginPackage[".", {.}] like I think it was supposed to. I don't know what might be wrong. Can anyone help? Thanks. Miguel Galrinho
From: Bill Rowe on 1 Jul 2010 08:26 On 6/30/10 at 1:50 AM, miguel(a)galrinho.com (Miguel Galrinho) wrote: >I have a package in Mathematica that works fine when I open the .m >file and click "Run Package". However, when I type Needs[.] in a >notebook, the package doesn't load 100%, only some functions do. The >file begins with >BeginPackage[".", {.}] >like I think it was supposed to. I don't know what might be wrong. >Can anyone help? Your BeginPackage call looks like it would be a problem. Choosing a one character name for the context name is a poor choice. And it is a particularly poor choice to use a character such as a single "." that is used extensively for other purposes and could result in conflict and unpredictable behavior. Next, the second argument to BeginPackage is optional and used to cause another package to load that the package you are creating depends on. This argument is a list of *strings* not a single . character. It should be possible to make this second argument something that evaluates to a list of strings. But clearly a single . character won't do this. And if the list contains the same string as used to name the context being defined by BeginPackage (the first argument) there is certainly going to be a problem of some sort. Try changing BeginPackage[".", {.}] to say BeginPackage["myPackage"] and see if this helps. If this doesn't fix the problem, you will need to supply more detail of what you are doing. Do you have a private context declared within the context you are setting up with BeginPackage? If so, you will need public usage messages for those functions defined inside the private context to easily access them outside of the private context. Also, when you say not all of the functions are loading how are you determining that?
From: Patrick Scheibe on 1 Jul 2010 08:25 Hi, did you export all functions by giving them a usage? Cheers Patrick Am Jun 30, 2010 um 7:50 AM schrieb Miguel Galrinho: > I have a package in Mathematica that works fine when I open the .m > file and > click "Run Package". However, when I type Needs[.] in a notebook, the > package doesn't load 100%, only some functions do. The file begins > with > > > > BeginPackage[".", {.}] > > > > like I think it was supposed to. I don't know what might be wrong. > > > > Can anyone help? > > > > Thanks. > > > > Miguel Galrinho >
From: Miguel Galrinho on 7 Jul 2010 07:42
Thank you both for your help, but unfortunately the problem still persists. I have all functions with a usage, so that's not the problem. The program recognizes the functions (the help files work, for example), but doesn't run them (using "Needs", because running the package by opening it and clicking "run package", everything works). Another thing I forgot to say before was that this package used to work fine in Mathematica 5, but this problem happens with Mathematica 7. But I don't think the problem has to do differences on the code, because otherwise it wouldn't work when I click "run package" or when I evaluate all the cells in the notebook. Do you think it might be anything to do with that? Thanks again for your help. Best regards, Miguel Galrinho -----Mensagem original----- De: Patrick Scheibe [mailto:pscheibe(a)trm.uni-leipzig.de] Enviada em: quarta-feira, 30 de Junho de 2010 13:16 Para: Miguel Galrinho Cc: mathgroup(a)smc.vnet.net Assunto: Re: Run Package vs Needs Hi, did you export all functions by giving them a usage? Cheers Patrick Am Jun 30, 2010 um 7:50 AM schrieb Miguel Galrinho: > I have a package in Mathematica that works fine when I open the .m > file and > click "Run Package". However, when I type Needs[.] in a notebook, the > package doesn't load 100%, only some functions do. The file begins > with > > > > BeginPackage[".", {.}] > > > > like I think it was supposed to. I don't know what might be wrong. > > > > Can anyone help? > > > > Thanks. > > > > Miguel Galrinho > Nenhum v=EDrus encontrado nessa mensagem recebida. Verificado por AVG - www.avgbrasil.com.br Vers=E3o: 9.0.830 / Banco de dados de v=EDrus: 271.1.1/2972 - Data de Lan=E7amento: 06/30/10 07:36:00 |