Sven Larsen

Last seen: 5 days ago | Active since 2022

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how to calculate common dates from two date arrays?
I have two arrays with many datenums in format [startTime endTime]. I am trying to find a way to calculate all common datetimes ...

9 days ago | 1 answer | 0

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answer

Answered
BUG or desired behaviour? assigning struct wont display its contents correctly
My description box is greyed and cannot interact with it when trying to ask new question. Any idea whats wrong? Where can I cont...

2 months ago | 0

Question

BUG or desired behaviour? assigning struct wont display its contents correctly
There seems to be a bug in Matlab where structs are looking incorrect. Hard to imagine this kind of behaviour is desirable? Str...

2 months ago | 2 answers | 0

2

answers

Question

how to calc periodiness of amplitude in signal?
I have (audio) signals where I know some signals has impulsive periodic amplitude peaks. I even know if these peaks should appea...

9 months ago | 0 answers | 0

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Question

how to filter data by rate of change?
I am trying to filter signal, where data of certain rate oif change is filtered out. I am not able to achieve my goals, for exam...

9 months ago | 1 answer | 0

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answer

Question

[ideas wanted]: How to find "peaks" of sloping signal?
Shoutout to you all math wizards! I need to detect peaks of (possibly) sloping signals. i.e sometimes first "peak" is real peak ...

11 months ago | 1 answer | 0

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Question

allocate array to structure, error "Scalar structure required for this assignment."
im trying to allocate numeric array to all cells in certain field of structure. mpData(i).data.speed = interp1(x,v,xq); and g...

12 months ago | 1 answer | 0

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Question

unable to read GR-401 gps data with gpsdev or gpsReceiver
I have Navisys GR-401 gps receiver which works just fine with SiRF-Live. I know it uses COM3, but I am unable to read data with ...

1 year ago | 1 answer | 0

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Question

How to avoid creating 1x1 struct?
I have created within for loop a 1x8 struct origStruct which is visual and very easy to read. now I also have to do separatel...

1 year ago | 1 answer | 0

1

answer

Question

change mouse hover datatip information?
I have created geoscatter of vehicle speed. When hovering over datapoints on map, datatips show Latitude and Longlitude. How can...

1 year ago | 1 answer | 0

1

answer

Question

cheatsheet for dealing with structures?
One thing that I find hardest in matlab is dealing with structures and extracting information from then. For me it seems there i...

1 year ago | 2 answers | 0

2

answers

Question

how to crop figures from excess white area
i have a wind rose figure (see attachment) and I'm trying to get rid of white space around image. Preferably to control how ther...

2 years ago | 2 answers | 0

2

answers

Question

how to use dsp.AudioFileWriter to write 24b bit depth audio?
Normally, I use audiowrite(fileName,y,Fs,'BitsPerSample',BitsPerSample); however, for large files, stream audio write is neede...

2 years ago | 1 answer | 0

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Question

xcorr always gives best aligment of 0 (which by visual inspection is wrong)
i have some datacurves, which im trying to align in time. while there is clearly max correlation that can be seen visually (like...

2 years ago | 3 answers | 0

3

answers

Question

pause/resume mechanism for very large computations?
I am about to conduct extremely large computations (will take weeks to complete) and would like to implement somekind pause/resu...

2 years ago | 1 answer | 0

1

answer

Question

"Scalar structure required for this assignment" error when adding struct into existing struct.
I am having troubles adding 102 length struct consisting of 1x28 numeric cells: into existing 102 length struct2: so str...

3 years ago | 1 answer | 0

1

answer

Question

webwrite returns error 405, how to find its detailed cause?
I am trying to get certain graphiql working, but am getting 405 error without any detailed error description. url = 'https://ra...

3 years ago | 1 answer | 0

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answer

Question

Line based heatmap / 2d histogram ?
I have a bunch of measurement data with hundreds of samples and clear convergence / trend in data, which can be seen when plotti...

3 years ago | 0 answers | 0

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answers