#7681: R pexpect interface seems to keep data around
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Reporter: kcrisman | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.1
Component: packages | Keywords: pexpect, interface, R
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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For instance:
{{{
sage: r.length([1,2,3,4])
[1] 4
sage: r.vector('c(1,2,3,4,3)')
[1] 4
sage: r.length([1,2,3,4])
[1] 4
sage: r.vector('c(1,2,3,4,3)')
[1] 4
sage: r.vector('c(1,2,3,4,3)')
[1] 2
sage: r.vector('c(1,2,3,4,3)')
[1] 1 2 3 4 3
sage: r.vector('c(1,2,3,4,3)')
[1] 1 2 3 4 3
sage: r.vector('c(1,2,3,4,3)')
Error: object 'sage49' not found
}}}
Somehow the R interface is keeping stuff from previous calls and returning
it, and then at some point choking. Incidentally, in the above session,
after trying many other R commands this way and always getting similar
errors, all of a sudden
{{{
[1] 1 2 3 4 3
}}}
showed up - as the answer to something else! Where it had been hiding, I
can only guess.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7681>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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