About "-" in attribute name

Hi,

In WRF output, there are several global attributes with "-" in their
names, for example, "WEST-EAST_GRID_DIMENSION".
When I use f_at_WEST-EAST_GRID_DIMENSION to read the dimension, NCL keeps
recognize the "-" to be a operator for "subtract" and says
"EAST_GRID_DIMENSION" is not a defined variable.

How can I visit this attribute?

Thank you.
Yaosheng
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Received on Tue May 26 2009 - 11:35:25 MDT