how to avoid the warming messages in the example of lcmask_4.ncl

Dear all,

When I try the example of lcmask_4.ncl on
http://www.ncl.ucar.edu/Applications/lcmask.shtml, I got some warming messages as the following:

warning:Argument 1 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 1 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 1 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 1 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value
warning:Argument 2 of the current function or procedure was coerced to the appropriate type and thus will not change if the function or procedure modifies its value

I don't like these kind of warming coming out. Is there anyway to avoid these?

Thanks in Advantage!

Guangshan

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Received on Tue Nov 22 10:39:59 2011