Submitted

detectEcgWithAngle(ecg, fSInHz, varargin): Heartbeat detection using sample-to-sample angle

Implementation of the R-peak detector using the angle between successive samples.

2 years ago | 3 downloads |

Answered

how to compute running correlation coefficient

And again... Have a look at <https://ch.mathworks.com/matlabcentral/fileexchange/65342 MOVCORR> Greetings, David

how to compute running correlation coefficient

And again... Have a look at <https://ch.mathworks.com/matlabcentral/fileexchange/65342 MOVCORR> Greetings, David

3 years ago | 0

Answered

How to compute sliding or running window correlation coefficient?

If someone encounters this problem, I have written a function in analogy to the MOVSUM function, which compute the moving Pearso...

How to compute sliding or running window correlation coefficient?

If someone encounters this problem, I have written a function in analogy to the MOVSUM function, which compute the moving Pearso...

3 years ago | 0

Answered

Rolling correlation / moving correlation

Hey Mate, I have written a function in analogy to the MOVSUM function, which does exactly that: <https://ch.mathworks.com/...

Rolling correlation / moving correlation

Hey Mate, I have written a function in analogy to the MOVSUM function, which does exactly that: <https://ch.mathworks.com/...

3 years ago | 0

Submitted

movcorr(x, y, k, varargin): Compute windowed correlation coefficient

Compute a moving correlation for two vectors x & y in analogy to the MOV* functions.

3 years ago | 29 downloads |

Answered

How to find next number divisible by n

How about b = n * ceil(a / n) Greetings, David

How to find next number divisible by n

How about b = n * ceil(a / n) Greetings, David

3 years ago | 0

Answered

Find RR Interval in seconds

The obvious solution would be: rrInSec = rrInSamples / samplingRateInHz

Find RR Interval in seconds

The obvious solution would be: rrInSec = rrInSamples / samplingRateInHz

3 years ago | 1

| accepted

Answered

Change legend width after reisze of legend line length

Hey Simon, this is an issue which pops up regularly, since the customization options of legends are currentyl (when I last ch...

Change legend width after reisze of legend line length

Hey Simon, this is an issue which pops up regularly, since the customization options of legends are currentyl (when I last ch...

3 years ago | 0

Answered

How to delete a plot in UIAxes?

You could store the handle to the fitted line in the UserData of the figure and then retrieve it every time the button is hit an...

How to delete a plot in UIAxes?

You could store the handle to the fitted line in the UserData of the figure and then retrieve it every time the button is hit an...

3 years ago | 1

| accepted

Answered

Grouping multivariant data for Andrewsplot

Hey! So |andrewsplot| states that "The rows of X correspond to observations, the columns to variables". It seems that you hav...

Grouping multivariant data for Andrewsplot

Hey! So |andrewsplot| states that "The rows of X correspond to observations, the columns to variables". It seems that you hav...

3 years ago | 0

| accepted

Answered

How changing the loglog scale x and y axis?

Have you tried to use <https://ch.mathworks.com/help/matlab/ref/semilogy.html semilogy> instead of |loglog|, e.g.: semilogy...

How changing the loglog scale x and y axis?

Have you tried to use <https://ch.mathworks.com/help/matlab/ref/semilogy.html semilogy> instead of |loglog|, e.g.: semilogy...

3 years ago | 1

Submitted

table2char(data,varargin)

Converts a table or dataset to a formatted character matrix.

3 years ago | 2 downloads |

Submitted

printFigs2Files(varargin)

Print figures to files in several formats for publication.

3 years ago | 2 downloads |

Submitted

onoffids2logical(onOffIds, varargin)

Convert start and end ids of events to logical indicator array.

3 years ago | 0 downloads |

Answered

Increase nonzero values without deleting zeros

Hey monmatlab, simply use logical indexing: Y = X; isNonzero = X~=0; Y(isNonzero) = 10*Y(isNonzero); or the more ...

Increase nonzero values without deleting zeros

Hey monmatlab, simply use logical indexing: Y = X; isNonzero = X~=0; Y(isNonzero) = 10*Y(isNonzero); or the more ...

3 years ago | 1

| accepted

Answered

A very quick question

Hey Radoslav, In general, to convert a logical array to ids use |<http://www.mathworks.com/help/matlab/ref/find.html find>|. ...

A very quick question

Hey Radoslav, In general, to convert a logical array to ids use |<http://www.mathworks.com/help/matlab/ref/find.html find>|. ...

3 years ago | 0

Answered

How to create a new matrix adding vectors of different size based on time

Hey Robert! First, a conceptual question: Can you make sure you have the same sampling interval & phase across all your signa...

How to create a new matrix adding vectors of different size based on time

Hey Robert! First, a conceptual question: Can you make sure you have the same sampling interval & phase across all your signa...

3 years ago | 1

| accepted

Answered

Plotting a lattice with color coded nodes

Hey Bill! % Generate the random values on the 50x50, 2-dimensional lattice directly % using X = randi(imax,sz1,...,szN)...

Plotting a lattice with color coded nodes

Hey Bill! % Generate the random values on the 50x50, 2-dimensional lattice directly % using X = randi(imax,sz1,...,szN)...

3 years ago | 0

| accepted

Answered

How can I adjust the labels on contour lines in a 'meshc' 3D-plot?

Hey Ibrahim, have a look at <https://ch.mathworks.com/help/matlab/ref/contour-properties.html |Contour Properties|> - the |La...

How can I adjust the labels on contour lines in a 'meshc' 3D-plot?

Hey Ibrahim, have a look at <https://ch.mathworks.com/help/matlab/ref/contour-properties.html |Contour Properties|> - the |La...

3 years ago | 0

| accepted

Answered

how to reduce dimensionality of features by usin pca?

To get a simply answer (whitout really adressing the problem), have a look as <https://ch.mathworks.com/help/stats/pcares.html |...

how to reduce dimensionality of features by usin pca?

To get a simply answer (whitout really adressing the problem), have a look as <https://ch.mathworks.com/help/stats/pcares.html |...

3 years ago | 0

Answered

Replication factors must be a row vector of integers or integer scalars.

nFilters/16 is probably not an integer. Depending on your needs, try round(nFilters/16) instead or use a number of filters which...

Replication factors must be a row vector of integers or integer scalars.

nFilters/16 is probably not an integer. Depending on your needs, try round(nFilters/16) instead or use a number of filters which...

3 years ago | 1

Answered

TEXTSCAN is my personal nemesis: Quotes strings with commas

Thanks Stephen for staying with me (you where right in the first place; reading the doc carefully helps)! I finally found my ...

TEXTSCAN is my personal nemesis: Quotes strings with commas

Thanks Stephen for staying with me (you where right in the first place; reading the doc carefully helps)! I finally found my ...

3 years ago | 0

Question

TEXTSCAN is my personal nemesis: Quotes strings with commas

Dear all, I thought I acquired some Matlab knowledge over the years. But |textscan| really makes me feel dumb. I can not fi...

3 years ago | 3 answers | 0

Answered

Replace elements in a SxS matrix with zero, in each column but in different rows

Hey Miroslav, have you looked at the |<http://www.mathworks.com/help/matlab/ref/sub2ind.html sub2ind>| function? Should be so...

Replace elements in a SxS matrix with zero, in each column but in different rows

Hey Miroslav, have you looked at the |<http://www.mathworks.com/help/matlab/ref/sub2ind.html sub2ind>| function? Should be so...

3 years ago | 1

Answered

What does "something = cell (size(session,1),1" mean/look like?

Hey Marie, the above creates a column cell with n elements, where n are the number of rows of session. Cheers, David

What does "something = cell (size(session,1),1" mean/look like?

Hey Marie, the above creates a column cell with n elements, where n are the number of rows of session. Cheers, David

3 years ago | 1

Submitted

simulateSaccades - A simple and easy-to-use saccade model

Simulates saccades which follow an empirical measured main sequence

3 years ago | 3 downloads |

Answered

Import and find a specific number from a text file

Try use regexp: file='c:\Users\David J. Mack\Desktop\test.txt'; numFormat1 = {'[ ]{1,7}(\-?\d+\.\d{3})'}; %e.g. %12.3f ...

Import and find a specific number from a text file

Try use regexp: file='c:\Users\David J. Mack\Desktop\test.txt'; numFormat1 = {'[ ]{1,7}(\-?\d+\.\d{3})'}; %e.g. %12.3f ...

4 years ago | 0

Answered

how to plot auto correlation and cross correlation function in a single figure?

The negative autocorrelation is the same as the positive as you use the same signal for the correlation. So if you want to pret...

how to plot auto correlation and cross correlation function in a single figure?

The negative autocorrelation is the same as the positive as you use the same signal for the correlation. So if you want to pret...

4 years ago | 0

Answered

3D plot of an equation with 3 variables

Hey Amruth, have a look at |<https://www.mathworks.com/help/matlab/ref/surf.html surf>|. Use the surf(x,y,z,c) syntax. Gre...

3D plot of an equation with 3 variables

Hey Amruth, have a look at |<https://www.mathworks.com/help/matlab/ref/surf.html surf>|. Use the surf(x,y,z,c) syntax. Gre...

4 years ago | 0