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David J. Mack


UniversityHospital Zurich

56 total contributions since 2012

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David J. Mack's Badges

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Submitted


resizeLegend(varargin)
Shortens a legend

3 months ago | 33 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.

8 months ago | 6 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

9 months 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...

9 months 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/...

9 months 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.

9 months ago | 21 downloads |

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

10 months ago | 0

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

10 months ago | 1

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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...

12 months 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...

12 months ago | 0

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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...

12 months ago | 0

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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...

12 months ago | 1

Submitted


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

1 year ago | 0 downloads |

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

1 year ago | 1 download |

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

1 year 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 ...

1 year ago | 1

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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>|. ...

1 year ago | 0

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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...

1 year ago | 1

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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)...

1 year ago | 0

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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...

1 year ago | 0

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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 |...

1 year 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...

1 year 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 ...

1 year 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...

1 year 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...

1 year 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

1 year ago | 1

Submitted


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

1 year ago | 0 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 ...

1 year 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...

1 year 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...

1 year ago | 0

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