Barth Netterfield netterfield at
Fri Jun 1 20:54:07 UTC 2018

Sometimes?  Max and Min should always be there.  If they are every missing,
please let me know.

MinPos is the smallest positive value (used internally for auto scaling log

It compiles with the GPL QT, but the qmake files are not longer supported.
We build with cmake now.

I should probably remove all of the un-supported qmake cruft, eh?


On Fri, Jun 1, 2018 at 3:21 PM, Steve Maher <Stephen.F.Maher at>

> Okay, now I'm seeing :iMax, :iMin attributes *sometimes* ... I'm trying to
> track down the determinator,  whether it's the (dirfile) data or .kst files
> or what ..
> BTW, do I need the *commercial* QT Creator to build on Windows?  Does
> anyone have a deeper recipe than what's in INSTALL.qmake?
> Thanks!
> On Fri, Jun 1, 2018 at 1:02 PM, Steve Maher <Stephen.F.Maher at>
> wrote:
>> Hi guys,
>> I was hoping to create a label annotation for a power spectrum to display
>> the frequency with the maximum power.   Something like the 'code' below
>> where you take the position (index?) of the maximum PSD value and pull out
>> the frequency at that position.
>> [x:f [x:psd:MaxPos]]
>> I see a MinPos but can't find a MaxPos.
>> I also tried going down the Equation path but couldn't find an
>> appropriate operator.
>> Anyone have a tip on getting this done?
>> Steve
>> p.s. I recently discovered the data-driven annotations - they're awesome!
>> p.p.s., Perhaps I should be adding these features myself.  A year or two
>> ago I tried building kst on Windows (our default GUI platform) for about a
>> full day and failed so I gave up.  I should probably try again.

C. Barth Netterfield
University of Toronto
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