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Re: Run Package vs Needs

  • To: mathgroup at
  • Subject: [mg110653] Re: Run Package vs Needs
  • From: "David Park" <djmpark at>
  • Date: Wed, 30 Jun 2010 08:05:59 -0400 (EDT)
  • References: <8622256.1277877387594.JavaMail.root@n11>

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:




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`"]

David Park
djmpark at  

From: Miguel Galrinho [mailto:miguel at] 

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?




Miguel Galrinho

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