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Dimitris Kugiumtzis

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Aristotle University of Thessaloniki

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Associate Professor, Department of Mathematical, Physical and Computational Sciences, Faculty of Engineering, Aristotle University of Thessaloniki, Greece


 

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02 May 2012 Screenshot Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis signal processing, simulation, statistics, finance, time series data base..., nonlinear dynamics 71 18
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23 Nov 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis

Hi Maximos,
My immediate reply is that for the k-d-tree data structure and nearest neighbors search we turned now to the faster routines of ann. We have not yet implemented them in MATS, but we will soon come with a new version incorporating this. Thanks for the link anyway. Unfortunately, we do not use MAC therefore we have not compiled the C-programs for MACOSX. We will try to find a MAC machine and do it (no promise this will be done immediately).

07 Apr 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis

Hi Tolga,
MATS does not contain a function "gettype.m". I also do not know CeeGraph, so I cannot help you in this.

07 Apr 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis

Hi Thomas,
1. You are correct. If a user loads a file with more one dot, it is treated as a plain text file containing a data matrix. We could not have made the assumption you mention (get the suffix after the last dot). Our experience and practice is to use just one dot, therefore we did not bother to check different possibilities with multiple dots. Maybe this will be done in a future version.
2. I now realized that we changed the function guiread.m but not uploaded it. In the updated function this issue was treated. I will make sure it is updated now.

22 Mar 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis

Hi Thomas,

For 1), I see no problem with dots in the data filename. However, I admit that we have not concentrated on the form of the path and filename. We found the bug that MATS cannot read a path having spaces.

For 2), when selecting a .mat file, MATS lists all the columns of the one or two dimensional matrix variables in the mat-file. If the mat-file contains variables of other types, these will be ignored. See also text message under the field "Running messages" in the window "Load Time Series".

13 Mar 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis

Hi Mohamed Aboamer,
Please read the web-supported help document for the measure you want to use. There is more explanation there than in the help text at the head of the Matlab function.

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23 Oct 2014 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis Trudie

I am trying to run the GUI to generate surrogate data right now but after I load the data and click Resampled time series, the Resampling Types box doesn’t populate and only shows greyed out boxes for Degree of polynomial approximation, Order of autoregressive model and Order of autoregressive model (repeated). The only box that is not grayed out and available is Number of resampled time series. My colleague also just started running the GUI with the exact same data file and we found that the Resampling Types box populated with all the methods that were available (i.e. FT, AAFT etc.). We are using the exact same Matlab version, data files and followed the same steps so I have no idea how to get it to populate. Do you know what might be causing this error?

23 Nov 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis Dimitris Kugiumtzis

Hi Maximos,
My immediate reply is that for the k-d-tree data structure and nearest neighbors search we turned now to the faster routines of ann. We have not yet implemented them in MATS, but we will soon come with a new version incorporating this. Thanks for the link anyway. Unfortunately, we do not use MAC therefore we have not compiled the C-programs for MACOSX. We will try to find a MAC machine and do it (no promise this will be done immediately).

23 Nov 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis Maximos Kaliakatsos-Papakostas

Concerning my previous post about the source code of the kdtree functions:

I found these files on an other submission

http://www.mathworks.com/matlabcentral/fileexchange/4586-k-d-tree

where one can find the C source files and compile them for hers/his system. To compile, however, one minor modification of the .h file is required, as stated in a comment on the aforementioned page.

All the best,
Maximos.

19 Nov 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis Maximos Kaliakatsos-Papakostas

This contribution encompasses more than I would ever need for time series analysis.

There is however some kind of incompatibility with the operating system I use, MACOSX. Specifically the mex files are not compiled for the architecture of my system's processor (extensions should be .mexmaci64).

Would it be possible to provide the C source files, so that the users could compile them themselves for their systems' architectures? If not, would it be possible to provide mex files for more processor architectures (like for example, MACI64)?

Thank you in advance,
Maximos.

07 Apr 2012 Measures of Analysis of Time Series toolkit (MATS) MATS computes many measures of scalar time series analysis on many time series in one go. Author: Dimitris Kugiumtzis Dimitris Kugiumtzis

Hi Tolga,
MATS does not contain a function "gettype.m". I also do not know CeeGraph, so I cannot help you in this.

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