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David J. Mack


UniversityHospital Zurich

55 total contributions since 2012

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Submitted


resizeLegend(varargin)
Shortens a legend

nästan 2 år ago | 27 downloads |

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Submitted


detectEcgWithAngle(ecg, fSInHz, varargin): Heartbeat detection using sample-to-sample angle
Implementation of the R-peak detector using the angle between successive samples.

mer än 2 år ago | 3 downloads |

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Answered
how to compute running correlation coefficient
And again... Have a look at <https://ch.mathworks.com/matlabcentral/fileexchange/65342 MOVCORR> Greetings, David

mer än 2 år 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...

mer än 2 år 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/...

mer än 2 år 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.

mer än 2 år ago | 32 downloads |

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Answered
How to find next number divisible by n
How about b = n * ceil(a / n) Greetings, David

mer än 2 år ago | 0

Answered
Find RR Interval in seconds
The obvious solution would be: rrInSec = rrInSamples / samplingRateInHz

mer än 2 år 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...

mer än 2 år 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...

mer än 2 år 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...

mer än 2 år 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...

mer än 2 år ago | 1

Submitted


table2char(data,varargin)
Converts a table or dataset to a formatted character matrix.

mer än 2 år ago | 2 downloads |

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printFigs2Files(varargin)
Print figures to files in several formats for publication.

mer än 2 år ago | 2 downloads |

Submitted


onoffids2logical(onOffIds, varargin)
Convert start and end ids of events to logical indicator array.

ungefär 3 år ago | 0 downloads |

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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 ...

ungefär 3 år 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>|. ...

ungefär 3 år 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...

ungefär 3 år 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)...

ungefär 3 år 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...

ungefär 3 år 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 |...

ungefär 3 år 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...

ungefär 3 år 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 ...

mer än 3 år 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...

mer än 3 år ago | 3 answers | 0

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answers

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...

mer än 3 år 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

mer än 3 år ago | 1

Submitted


simulateSaccades - A simple and easy-to-use saccade model
Simulates saccades which follow an empirical measured main sequence

mer än 3 år ago | 4 downloads |

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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 ...

mer än 3 år 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...

mer än 3 år 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...

mer än 3 år ago | 0

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