Neuropragmatist

University College London

Last seen: 10ヶ月前 | 2018 年からアクティブ

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Trained in neuroscience and electrophysiology but self-taught in programming. My solutions may not be the fastest or most elegant but on average they work at an above chance level.

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Is it possible to update a uitextarea without using drawnow?
Hi all, I am building an app using the app designer, in the window I have a uitextarea where I post updates to the user, someth...

12ヶ月前 | 1 件の回答 | 0

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App designer: UIAxis ButtonDownFcn with key modifier?
Hi all, I am using the app designer to design a small program, part of this involves getting the user to click on an axis. I us...

12ヶ月前 | 2 件の回答 | 0

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What are the units of the bandwidth parameter for mvksdensity?
I have been using the inbuilt mvksdensity function. For this function the user specifes a 'bandwidth' as a smoothing parameter (...

1年以上前 | 1 件の回答 | 0

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How to provide cameraIntrinsics to triangulateMultiview
I am trying to triangulate matched points recorded by 5 different cameras using triangulateMultiview. The third input required ...

2年以上前 | 1 件の回答 | 0

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Shuffling matrix regions while maintaining their shape
Hi all, I want to segment a matrix into parts, then move those parts around while maintaining their shape as far as possible (b...

3年以上前 | 0 件の回答 | 0

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Calculating mean integrated squared error (MISE)
Hi all, I have a bivariate probability distribution ( f1(x) ) and a histogram of real data that I want to compare to it ( f2(x)...

3年以上前 | 1 件の回答 | 0

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Histograms - why does the smallest binsize always give the smallest mean integrated squared error?
Hi all, I have a bit of a specialised question involving histograms and mean integrated squared error (MISE). I want to find th...

3年以上前 | 1 件の回答 | 0

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How to do Chi square with contingency tables?
Crosstabs expects the raw data as vectors, if you only have counts you will need to expand your data into vectors, for instance ...

3年以上前 | 1

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Undefined function or variable 'netcdf'
I think your line is supposed to be: f = netcdf.open('algiers_bay.grd','r'); Because netcdf on it's own doesn't do anything,...

3年以上前 | 0

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How to plot Data from a table filled with strings?
I think your problem is just that the cell array contains strings of different lengths, you can try converting them to numbers i...

3年以上前 | 0

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Can anyone tell me how does this code works?
Hi, It is difficult to know exactly what the code is doing without the data files it is loading. However, at first glance I wo...

3年以上前 | 0

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i have a data set containing urls of images.How can i download all the images from those urls using matlab?
You can read the data into Matlab using importdata: https://uk.mathworks.com/help/matlab/ref/importdata.html?s_tid=doc_ta Then...

4年以上前 | 0

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Please provide in depth details on PCA MATLAB function
How many features do you give the PCA when you give it the dataset? Just the XY values you plotted in the first graph? Or do you...

4年以上前 | 0

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how do i live plot 3 different values?
Can you be more precise in what you want to achieve? For example, here is the Matlab help example given for animatedline: numpo...

4年以上前 | 0

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Maximum perpendicular distance from line to convex hull boundary
I had to do something similar to this some time ago, sorry I don't really remember the specifics but I used rayTriGPU: https://...

4年以上前 | 0

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Model Based Reinforcement Learning
Your agent shouldn't be able to make 'invalid' actions at all. For undesired actions, as you say the correct reward function wit...

4年以上前 | 0

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How to Filter Datasheet
Why do you want to do this? Its certinaly poossible to write code to do what you want, I'm just wondering if maybe there is a m...

4年以上前 | 0

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compress a 3D volume into a 2D image
Could you project the data along each axis (using mean(data,dim) for instance) to get 3 two dimensional images and then do the t...

4年以上前 | 1

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to run NaN values with anova1
As per the anova1 help it expects groups to be arranged in columns, not rows: "P = anova1(M) for a matrix M treats each col...

4年以上前 | 0

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.dat file image generation and analysis
Matlab has countless ways to visualise images loaded into the workspace. The problem with your file is that .dat sounds like a ...

4年以上前 | 1

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How to import a specific range using readtable
Can you not just read the whole table and the select the data you want from the resulting matrix? cd 'C:\Users\julia\Desktop\Te...

4年以上前 | 0

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Fatal Error on Startup
You should probably contact Matlab suport: https://uk.mathworks.com/support/contact_us.html?s_tid=sp_ban_cs M.

4年以上前 | 0

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How to resize test images for neural network deep learning?
Did you just substitute your own input image for the Matlab tutorial one? Because it looks like the whole code is built around 3...

4年以上前 | 0

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Can we import data from Dropbox to matlab?
I haven't used this but maybe this function would be helpful: https://uk.mathworks.com/matlabcentral/fileexchange/59548-url-rea...

4年以上前 | 0

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How to plot a position heatmap inside a circle?
Hi Manal, I'm always happy to help a fellow animal researcher! If you know where the center of the arena is in your heatmap th...

4年以上前 | 1

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How do I access images from directories using an input command for the extensive file?
In the example function you gave the second input 'fileType' is not used, is that the problem? You could use this in the line c...

4年以上前 | 1

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Plotting X, Y cordintions with a line short line that indicates the angle
Your question is lacking some detail I suspect. Just to plot the XY data you could do this: dat =[20 30 200 30 ...

4年以上前 | 0

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Efficient way to rename files adding prefix from higher rank folder
You should look at fileparts: https://uk.mathworks.com/help/matlab/ref/fileparts.html And strsplit: https://uk.mathworks.com/...

4年以上前 | 0

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Loop an animated plot
I would run your function once and generate a movie file, then insert the video into Powerpoint using the 'insert video' option ...

4年以上前 | 1

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Copy an Excel worksheet from one workbook to another with Matlab
Why does readtable followed by writetable not work?: https://uk.mathworks.com/help/matlab/ref/readtable.html?searchHighlight=re...

4年以上前 | 0

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Neuropragmatist

University College London

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