[daip] Another technical detail

[Elias Brinks]

Hi Eric,

thanks for fixing these minor bugs in UVGLU and AVSPC...great!

Yes, I realise UVGLU is a "golden oldie" but it serves the purpose.
But is there a better way to glue two IFs together these days? If
so, I'm not aware of it...

Cheers,

Elias


On 21 Dec 2006, at 20:38, Eric Greisen wrote:

> Elias Brinks writes:
>
>> I think I stumbled on another small problem. UVGLU doesn't do exactly
>> what it advertises to do. When gluing two IFs together, it purports
>> to check
>> if the first channel of the second IF differs by exactly one channel
>> from that
>> of the last channel of the first IF. Well, this isn't what it does!
>>
>> If the first channel of the second IF coincides with the last channel
>> of the first IF,
>> it indeed refuses to glue the two together. If the difference is
>> exactly 1 channel,
>> it works fine BUT IT STILL WORKS when the difference is 2 channels,
>> 3 channels, or n channels (I stopped running tests after a while).
>>
>> So, it seems to be keen to prevent an overlap, but it doesn't seem to
>> care
>> if there is a gap. COuld you have a quick look to see if this makes
>> sense?
>> I can send you the files I have been playing with, of course, for you
>> to run
>> SPLIT and UVGLUE on.
>
> UVGLU is an antique that no one much uses.  The test of frequencies
> computes the freq od data set 1 channel N+1 and data set 2 channel 1.
> It then does
>            (F2-F1)/DeltaF > 0.1
> but of course this had better be absolute value of the ratio.  I have
> fixed the 31DEC06 and 31DEC07 versions.
>
> Eric Greisen