warn_supp
Suppress printing of Matlab warning message
Syntax
oldstate = warn_supp(warnid)
Arguments
input
warnid Matlab warning identifier (default: 'all', for all warnings)
output
oldstate previous state of warning corresponding to warnid
Description
Suppresses printing of Matlab warning message corresponding to warning ID warnid; see warning. The default is to suppress all warnings. The routine warn_test can be used to test whether a condition triggering the given warning was actually issued.
The warn_supp ... warn_test routines exist for two reasons: (1) if routines issuing warnings are run in a loop (which they frequently are in the MVGC Toolbox), Matlab will by default spew confusing warnings, obscuring meaningful ouput; (2) we want to be able to issue meaningful context-dependent warning messages.
Example
A = magic(6);
oldstate = warn_supp('MATLAB:nearlySingularMatrix');
B = inv(A);
warn_test(oldstate,'badly-conditioned matrix?');