CRP toolbox general question regarding Window Size
Posted: Sat Jan 4, 2014 17:37
Dear all,
regarding the window size in the GUI, the RQA measures calculated from the software (LAM, DET, ENTR, etc.) end before the Raw, input, Data ends, i.e. are shorter than the Raw Data. That, I explain to myself by thinking that, assuming our window size is 250, in order to calculate the first value of any RQA measure, the software needs 250 data points form Raw Data , creates a Recurrence Plot for these 250 data points and extracts the measures. Now, from all these 250 points, only 1RQA measure value is extracted, and it is assigned the date, point in time, which the last 250th data point from the RAW data corresponds to. So, the plots on the GUI should start at the point in time at which the 250th RAW data point starts, and not, as they do, start when the RAW data starts in time. Is this correct?
Furthermore, there should be a length difference (between RQA measures and RAW data) of exactly 249 (Window size - 1) data points. I ran 20k data set and it turned out that there is a 250, not 249, difference in length (between RQA measures and RAW data). Why is this so?
Thank you for your time and consideration,
AA
regarding the window size in the GUI, the RQA measures calculated from the software (LAM, DET, ENTR, etc.) end before the Raw, input, Data ends, i.e. are shorter than the Raw Data. That, I explain to myself by thinking that, assuming our window size is 250, in order to calculate the first value of any RQA measure, the software needs 250 data points form Raw Data , creates a Recurrence Plot for these 250 data points and extracts the measures. Now, from all these 250 points, only 1RQA measure value is extracted, and it is assigned the date, point in time, which the last 250th data point from the RAW data corresponds to. So, the plots on the GUI should start at the point in time at which the 250th RAW data point starts, and not, as they do, start when the RAW data starts in time. Is this correct?
Furthermore, there should be a length difference (between RQA measures and RAW data) of exactly 249 (Window size - 1) data points. I ran 20k data set and it turned out that there is a 250, not 249, difference in length (between RQA measures and RAW data). Why is this so?
Thank you for your time and consideration,
AA