Periodogram*

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NicolasR
Posts: 86
Joined: Mon Nov 04, 2013 6:22 pm
Location: Here

Re: Periodogram*

Postby NicolasR » Thu Dec 19, 2013 7:03 pm

hi,

The new version of the periodogram add-in is updated, it now supports kernel density estimation. thanks for your comments and suggestions.

ecofin
Posts: 182
Joined: Fri May 10, 2013 11:24 am

Re: Periodogram*

Postby ecofin » Fri Dec 20, 2013 4:37 am

thank's I'm very appreciated 8) :D

ecofin
Posts: 182
Joined: Fri May 10, 2013 11:24 am

Re: Periodogram*

Postby ecofin » Thu Jan 16, 2014 12:37 pm

hi, you can add an option like log scale (checked or unchecked) see the picture below.
I would be very happy if you accept my simple suggestion.
best regards.
Attachments
spectral.png
spectral.png (26.94 KiB) Viewed 3129 times

NicolasR
Posts: 86
Joined: Mon Nov 04, 2013 6:22 pm
Location: Here

Re: Periodogram*

Postby NicolasR » Tue Jan 28, 2014 1:38 pm

Hi ecofin,

Do you mean log(frequency- abscissa) or log( (a^2+b^2)^(1/2)- ordinate)? the two options could be calculated using the data from the output table with the @log(x) command. The logarithmic scale can be helpful when the data have a wide range of values, however I think that its utility is minimal in spectral analysis so I do not think necessary to add it as an option.

thanks for the suggestion.

ecofin
Posts: 182
Joined: Fri May 10, 2013 11:24 am

Re: Periodogram*

Postby ecofin » Wed Jan 29, 2014 2:06 am

hi
I mean the periodogram and the spectrale density ordinate (y-axis) in output graph and output table data (log scale for ordinate checked or unchecked option), I HAVE SEEN THAT SOME FREE SOFTWARE LIKE Gretl and Jmulti can make this option, it help to apply examples books and for my research.
you can review my suggestion.

Best regards. ecofin


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