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Don


Converse University

Last seen: 2 years ago |  Active since 2012

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Question


what is fnn (not FNN)
I'm trying to use function [LaypExpnt]=lyaprosen(y,dt)8 var from the https://ideas.repec.org/c/boc/bocode/t741502.html it ha...

2 years ago | 1 answer | 0

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answer

Question


Lyapunov exponent supplied by the COMMNUITY
Were gaining on it! The function i'm interested in has been submitted by the COMMUNITY: MathWorks FileExchange website fo...

2 years ago | 0 answers | 0

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answers

Question


Lyapunov exponent function submitted by community
It seems this funcftion only takes Ordinary Differential Equations (ODE). I have experimental data. how can I use it with data,...

2 years ago | 1 answer | 0

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answer

Question


Luapunov exponent for days
I have looked at community supplied function for lyapunov exponent but it only seems to work with ordinary differential equation...

2 years ago | 1 answer | 0

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Question


length(data.(ChannelFirst)) this worked for years, now it won't work WHY?
Select edf data file to analyze Enter SAMPLE RATE for this subject(check log book!): 512 Enter name of first channel to ana...

2 years ago | 2 answers | 0

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Question


why doesn't data.(ChannelFirst) work now? I has worked ok for years
Enter name of first channel to analyze : F5 Enter name of second channel to analyze : F3 Unrecognized field name "F5". Er...

2 years ago | 0 answers | 0

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Question


"Array indices must be positive integers or logical values." - a new problem
First = input('Enter time (secs) for TPlot START \n'); Last = input('Enter time (secs) for TPlot END \n'...

2 years ago | 1 answer | 0

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Question


need help with hdr.label
clear; clf; clc; % Read EEG file data % ask user cd 'F:\' display('Select edf data file to analyze'); [filenam...

3 years ago | 0 answers | 0

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Question


Subscript indices must either be real positive integers or logicals.
This is such a simple request, but I cannot find an answer A = 1.0000 1.0000 0.3333 0.1429 0.1111 1.000...

5 years ago | 2 answers | 0

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Question


"Invalid Handle" error message occurs
I have the following very simple code: fprintf(' Select Folder to store output plots and files \n'); FigPath = uig...

6 years ago | 1 answer | 0

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Question


uigetfile and large dialogue box
Using uigetfile the dialogue box suddenly occupies the whole screen. It there a way to make it smaller

6 years ago | 1 answer | 0

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Question


overlay plot on imgage
I have images of artwork and plots of data from an eye tracker. I want to overlay the data plots on the images. A complication...

6 years ago | 1 answer | 0

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answer

Question


change scaling of x-axis
I have data in IDCount(1,:) that goes from 0 to, say, 260. I want to rescale so the x-axis will appear in seconds -- IDCount(1,...

6 years ago | 1 answer | 0

1

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Question


ginput doe not work anymore
[TrajX, TrajY] = ginput; this has worked great but now does not work at all. I click mouse to select a region -- with simult...

7 years ago | 2 answers | 0

2

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Question


ginput used to work now it doesn't
Plot works just fine [ax,p1,p2] = plotyy(t,P3_FzInv,t,T4_T3,'plot'); grid on; % [ax,p1,p2] = plotyy(xaxis,T4_...

7 years ago | 1 answer | 0

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Question


why won't this plot?
for i = 1:length(xaxis); if xaxis(i) >0; plot(xaxis(i),yaxis(i)); end end; xaxis and yaxis have numbers...

7 years ago | 4 answers | 0

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Answered
This code gives me a strange plot I cannot figure why. Many thanks for any help
In the words of Colombo, "one more thing..." plot looks correct (finally!) I have tried all the combinations I can think of b...

8 years ago | 0

Answered
This code gives me a strange plot I cannot figure why. Many thanks for any help
as you can see in the top plot, one of the variables (z2, I think) does not fit within the plot boundaries I can't find a probl...

8 years ago | 0

Question


This code gives me a strange plot I cannot figure why. Many thanks for any help
figure(2); start=floor(TrajX(1)); stop=floor(TrajX(length(TrajX))); P3_FzInv = flip(P3_Fz*-1); subplo...

8 years ago | 5 answers | 0

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answers

Question


Vector size error or Polyfit
Am trying to detrend some ECG data using polyfit(). Error message is that X and Y vectors not the same size. But they are, I th...

8 years ago | 1 answer | 0

1

answer

Question


buttLoop error message code lifted from Matlab example 60 Hz hum
Using code from Remove the 60 Hz Hum from a Signal <http://www.mathworks.com/help/signal/ug/remove-the-60-hz-hum-from-a-signal...

8 years ago | 1 answer | 0

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answer

Answered
Why does .gt return a vector for simple comparison of two numbers?
I don't think I am dealing with 3-element vectors k k = 31231 >> sig(k) ans = -263.9811 >> cutoff ...

8 years ago | 0

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Question


Why does .gt return a vector for simple comparison of two numbers?
The problem: Trying to count heart rate. I have a (somewhat noisy) signal vector of length 30K or so and intend to analyze pea...

8 years ago | 3 answers | 0

3

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Question


XLSWrite works sometimes,, other times I have to re-run up to 5-6 times
This is the error code. Excel is NOT loaded into memory, i.e., is not open. Only Matlab is running: Command Window, Editor, Fi...

11 years ago | 0 answers | 0

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Question


xlsWrite works once then I get error code 0x800AC472
xlsWRITE will work once and then it returns: Error: Object returned error code: 0x800AC472 Error using xlswrite (line 2...

11 years ago | 1 answer | 0

1

answer

Question


Values in array seem to be divided by 1000. Why?
'RatioResults' is a 9X181 double precision array in workspace. 'thispass' is vector created each iteration through a While loop...

11 years ago | 1 answer | 1

1

answer

Question


User Inputs String variable that is name of vector. want script to calculate on values of that vector
Hello, I know this is VERY BASIC, but I cannot find an answer in the books, Matlab Guide, or Matlab Central. Need help w...

11 years ago | 2 answers | 0

2

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Answered
xlsread only works once per matlab session
xlsWRITE will work once and then it returns: Error: Object returned error code: 0x800AC472 Error using xlswrite (line...

11 years ago | 0

Question


is it possible to save a "compiled" routine from Matlab that will run under Windows
I have worked out some computational scripts that could be useful for my students. Is it possible to save those in a "compiled"...

11 years ago | 2 answers | 0

2

answers

Question


Possible to use string variable in plot title?
I would like to create a string that can be used as part of a plot title. Is this possible? I have searched documentation a...

11 years ago | 5 answers | 0

5

answers

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