Search found 16 matches

by holistic
Sat Aug 22, 2015 10:27
Forum: General Discussion
Topic: Calculating perpendicular RP
Replies: 1
Views: 14464

Calculating perpendicular RP

Hi, I often encounter tangential motion, which I'm unable to "clean up" by varying thresholds. This may be because it is mostly in the near vicinity of the diagonal line, so I'm not sure if it can be cleaned up so easily. I attached a RP as a example (diagonal line removed). So I was wonde...
by holistic
Fri Nov 7, 2014 12:30
Forum: General Discussion
Topic: Significance for RQA measures of symmetry/asymmetry
Replies: 0
Views: 22825

Significance for RQA measures of symmetry/asymmetry

Hi,

I'm trying to find out which system leads the other and computed the RQA measures (RR) of symmetry/asymmetry. Look promising so far, but how to determine the significance of those measures?

Thanks in advance
by holistic
Tue Oct 7, 2014 13:43
Forum: General Discussion
Topic: window size
Replies: 5
Views: 18659

Re: window size

Got it thanks! Deutsch ist kein Problem ;)
by holistic
Tue Oct 7, 2014 11:38
Forum: General Discussion
Topic: window size
Replies: 5
Views: 18659

Re: window size

Hi @ll,

can you please tell me, where to find this method in the Thesis? Also..is it still applied?

Or are there any new methods for determining an "optimal" window size or some general recommendations respectively?

Thanks :)
by holistic
Wed Sep 3, 2014 18:03
Forum: General Discussion
Topic: CRPs and twin surrogate data
Replies: 1
Views: 12479

CRPs and twin surrogate data

Hi, I was wondering how to create surrogate data with the twinsurr function for two time series in order to estimate the significance of the RR,DET .. values from their CRP. My idea was to generate 100 surrogate datasets for the first and 100 for the second time series, then calculate CRPs and RP me...
by holistic
Wed Sep 3, 2014 11:52
Forum: General Discussion
Topic: cross recurrence plot
Replies: 2
Views: 14514

Re: cross recurrence plot

great, thanks :)
by holistic
Thu Aug 21, 2014 21:59
Forum: General Discussion
Topic: cross recurrence plot
Replies: 2
Views: 14514

cross recurrence plot

Hi :), I'm trying to determine the time lag between two time series as done here: http://www.recurrence-plot.tk/crps.php I calculated the CRP with the crq2 function and used dimension 4 and distance of 1.2 and delay of 1. Now that I got the plot, I'm not sure how to proceed and to calculate the RP m...
by holistic
Fri Jul 4, 2014 18:58
Forum: General Discussion
Topic: RP with reaction times: Dimension and delay
Replies: 2
Views: 14584

Re: RP with reaction times: Dimension and delay

Thanks for the fast reply I think an answer depends on your research question. For example, do you need a time resolved RQA? From your plots I can see that you divided your very short time series again in smaller chunks of length 40. This is really very short. You should know that then the statistic...
by holistic
Wed Jul 2, 2014 18:18
Forum: General Discussion
Topic: RP with reaction times: Dimension and delay
Replies: 2
Views: 14584

RP with reaction times: Dimension and delay

Hi, I was wondering if it makes sense to use RP for the analysis of reaction times? The idea behind this is that some cognitive system generates a time series of reaction times and that I can reconstruct the attractor in phase space. Three questions arise: 1. The minimal number of data points I have...
by holistic
Sun May 18, 2014 09:50
Forum: General Discussion
Topic: Recurrence Plot for binary variable?
Replies: 6
Views: 21159

Re: Recurrence Plot for binary variable?

I see :). Thanks a lot!
by holistic
Sat May 17, 2014 12:47
Forum: General Discussion
Topic: Recurrence Plot for binary variable?
Replies: 6
Views: 21159

Re: Recurrence Plot for binary variable?

Ok..thanks..just to be sure. I attached a screenshot of an analysis with a binary timeseries. Here, the treshold is 0.2 and I used euclidian norm. Is this correct? I assume I can interpret the values of RR, DET asf. in the same way as with a continuous variable?
by holistic
Fri May 16, 2014 11:53
Forum: General Discussion
Topic: Recurrence Plot for binary variable?
Replies: 6
Views: 21159

Re: Recurrence Plot for binary variable?

Thank you!

Is this approach implemented in the matlab software (crqa), i.e. when I just compute the RR,LAM,DET asf. for a binary variable as normally done with my continuous variable?
by holistic
Thu May 15, 2014 11:52
Forum: General Discussion
Topic: Recurrence Plot for binary variable?
Replies: 6
Views: 21159

Recurrence Plot for binary variable?

I was wondering, if it is possible to compute the RP also for a binary variable which alternates between 0 and 1? I'm really not sure, if the phase space reconstruction makes sense in such a case :?
by holistic
Thu Feb 20, 2014 12:34
Forum: Bugs
Topic: Storing data in variable skips datapoints
Replies: 2
Views: 13407

Re: Storing data in variable skips datapoints

My bad sorry, I missed the part about window step..all works fine now, thank you :)
by holistic
Wed Feb 19, 2014 12:39
Forum: Quantification
Topic: Computing Laminarity
Replies: 1
Views: 12282

Computing Laminarity

Hi,

I have 10 timeseries and I want to compute the Lamniarity for all of those without using the gui-interface. Unfortunately I don't know how the commands are to save to compute the crp and the LAM and save it into an array. Can anybody help me out with which matlab code to use?