#20198: `LinearCode(C)` for some code `C` should construct a code
-------------------------------------+-------------------------------------
Reporter: jsrn | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.1
Component: coding theory | Resolution:
Keywords: linear code, | Merged in:
beginner | Reviewers:
Authors: Charles Prior | Work issues:
Report Upstream: N/A | Commit:
Branch: | 84c1e39a4450f95d2c96ad9d6dbcf6bf80cec089
u/cprior/_linearcode_c___for_some_code__c__should_construct_a_code|
Stopgaps:
Dependencies: |
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Comment (by cprior):
Note that the provided example (ignoring the part relating to the
requested functionality) never worked. We have:
{{{
sage: C = codes.GeneralizedReedSolomonCode(GF(23).list(), 12)
sage: Chan = channels.StaticErrorRateChannel(GF(23)^7, 2)
sage: %timeit C.decode(Chan(C.random_element()))
Traceback (most recent call last)
...
TypeError: Message must be an element of the input space for the given
channel
}}}
Perhaps you meant something more like this?
{{{
sage: C = codes.GeneralizedReedSolomonCode(GF(23).list(), 12)
sage: Chan = channels.StaticErrorRateChannel(GF(23)^23, 2)
sage: C.decode_to_code(Chan(C.random_element())) # using the superseding
decode_to_code function
(10, 17, 5, 20, 9, 1, 3, 18, 8, 20, 13, 5, 20, 16, 12, 22, 18, 3, 13, 17,
11, 11, 4) # random
}}}
This doesn't affect my patch, unless you were to use this example to test
it.
--
Ticket URL: <http://trac.sagemath.org/ticket/20198#comment:4>
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