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MatchLocalNames

MatchLocalNames
is an option for Trace and related functions which specifies whether symbols such as x should match symbols with local names of the form x$nnn.
  • With the default setting, Trace[expr, x=rhs] will show assignments to local variables whose names are of the form x$nnn.
  • Trace[expr, x=rhs, MatchLocalNames->False] shows assignments only for the global symbol x.
By default, Trace will match local variables:
With MatchLocalNames -> False, only an explicit match of x will show up:
By default, Trace will match local variables:
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With MatchLocalNames -> False, only an explicit match of x will show up:
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