Re: Remove help
- To: mathgroup at smc.vnet.net
- Subject: [mg42060] Re: Remove help
- From: Bill Rowe <listuser at earthlink.net>
- Date: Tue, 17 Jun 2003 05:44:08 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
On 6/16/03 at 3:58 AM, rex_chaos at 21cn.com (Rex_chaos) wrote:
>rpm::"shdw": "Symbol rpm appears in multiple contexts
>{"MyPackage`OWM`", "Global`"}; definitions in context
>{"MyPackage`OWM`"} may shadow or be shadowed by other definitions."
>In order to let rpm return the value defined in the package rather
>then that defined in Global context. I inserted the code into my
>package
>Remove[rpm]; rpm = \[Gamma];
A better choice would be to use a utility that prevents shawdowing. Take a look at the Wolfram resource site and search for anti-shadow or shadow. There are a couple of packages that do this quite nicely.
>BTW, if rpm has never been defined in the Global context. Invoking
>"Remove[rpm]" will print a warning. However can I know if a variable
>has been defined or not?
Names["Global`*"] will give you a list of all symbols defined in the Global context