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Re: c2d not working


From: Philip Nienhuis
Subject: Re: c2d not working
Date: Sun, 14 Jan 2018 14:49:15 +0100
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0 SeaMonkey/2.48

Doug Stewart wrote:


On Sun, Jan 14, 2018 at 7:21 AM, PhilipNienhuis <address@hidden
<mailto:address@hidden>> wrote:

    Torsten-3 wrote
    > On 14.01.2018 01:08, Dikko Abubakar wrote:
    >> I get the message that c2d is not implemented though I have the control
    >> pkg installed and loaded. Please help.
    >>
    >> Dikko Abubakar
    >>
    >
    > Are other function (e.g., tf) available from the control package?

    I can confirm the OP's report with the dev version on Windows
    (mxe-octave,
    tip from Jan 10):

    >> pkg load control
    >> which c2d
    >> c2d
    warning: the 'c2d' function belongs to the control package from
    Octave Forge
    but
    has not yet been implemented.

    Please read <http://www.octave.org/missing.html
    <http://www.octave.org/missing.html>> to learn how you can
    contribute missing functionality.
    error: 'c2d' undefined near line 1 column 1
    >> path

    Octave's search path contains the following directories:

    .
    C:\Programs\Octave\OCTAVE~1.0__\share\octave\packages\control-3.0.0
    
C:\Programs\Octave\OCTAVE~1.0__\lib\octave\packages\control-3.0.0\x86_64-w64-mingw32-api-v51+
    :

    However, tf sees to work fine:

    >> tf

    Static gain.
    >> help tf
    'tf' is a function from the file
    C:\Programs\Octave\OCTAVE~1.0__\share\octave\packages\control-
    address@hidden
    :

    Note that I never use(d) the control pkg and just half an hour ago I
    wiped
    old installations, so I can't tell when c2d did work.

    philip



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I am quite sure that control 3.0.0 does not work with the dev branch.
We need a new release to go with the dev. branch. The fixes are there
already.

Could be. I figured those fixes had been integrated in mxe-octave - that is the binary fixes. I see little difference with the setup of the ./control-3.0.0/@lti subdir (where tf.m lives) compared to the control-3.0.0/@ft subdir where c2d.m lives.
That is all m-files stuff so I suppose at least "help c2d" should work.

Philip



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