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**Content Feed**

Submitted

Tortuosity / Connected Path Calculation for 3D Structures

Tortuosity Distribution Calculation of 3D Materials Datasets

1 year ago | 2 downloads |

Submitted

Multivariate Polynomial Regression

Performs polynomial regression on multidimensional data.

2 years ago | 54 downloads |

How can I simplify the polygon?

Well purely speculating, assuming you have a binary image with those lines: FilledPolygons = imfill(PolygonImage,'holes');...

5 years ago | 0

Can someone figure out whats wrong with my code?

You are a call to a function like this: [Out]=UDF_Uncontrol(E0,y0,yc2,h,q2); which returns an "Out" variable that is not...

5 years ago | 1

Saving my own function to be used as MATLAB built-in functions

Create a startup.m file in your MATLAB user folder(usually Documents/MATLAB) then use <https://www.mathworks.com/help/matlab/ref...

5 years ago | 1

| accepted

How to get the maximum consecutive NaNs for each column

Here you go: result = zeros(1,size(A,2)); for i = 1:size(A,2) B = isnan(A(:,i)); CC = bwconncomp(B); ...

5 years ago | 0

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how can ı solve 'Not enough input arguments.' error?

You named your variable handle, and probably didn't define it. handle is already defined in MATLAB so it thinks that your trying...

5 years ago | 0

Finding p-value of coefficients of a trained model

Just load the model then explore using dot notation: M.RegressionGP RegressionGP PredictorNames: {'column_...

5 years ago | 1

Why does a for-loop stop at the correct place when you use the same counter name as your upper limit?

Because the upper limit is evaluated at the beginning of the execution when *r = 7*. If you want the loop condition to be evalua...

5 years ago | 1

How to multiply 3d-arrays without image processing toolbox

Don't resize the Image, resize the Mask. I am assuming the Mask is 0/1 binary, so use nearest neighbor interpolation method.

5 years ago | 0

Looping a switch statement

This is not the safest way to do this, and you will likely realize why later, but for purely educational purposes: while tru...

5 years ago | 1

| accepted

In an assignment A(:) = B, the number of elements in A and B must be the same.

Just convert that to: ExpectedReturn = cell(size(r)); %... ExpectedReturn{i}=-1*round(FVAL/0.01)*0.01; and let it...

5 years ago | 0

How do I get the same image as generated by imagesc using ind2rgb

Try: map=jet(256);

5 years ago | 0

| accepted

How do I limit the range of a colormap when using imwrite

You should get the same effect if you just did: rhoi(rhoi<.45*min(rhoi(:))) = .45*min(rhoi(:)); rhoi(rhoi> 0.55*max(rhoi...

5 years ago | 0

edge detection filters are not detecting my edges for the matrix I created, even though the gradient changes are super obvious

I believe the very small size of your image is messing with the heuristics of the "edge" function to find thresholds. You can ei...

5 years ago | 1

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plotting a bar chart with "text" categories on the x-axis

Here is a start: example = readtable('example.CSV'); example = sortrows(example,'Group'); h = bar(table2array(examp...

5 years ago | 0

Create Text file containing list of file names

Almost there. Add these lines to the bottom and it should work: files(1:2) = []; % get rid of . and .. fileID = fopen(fu...

5 years ago | 0

Unable to add xlabel to subplots with secondary axis

The only reason I can think of for this to happen is if you used the name "xlabel" somewhere else in the code. I can replicate t...

5 years ago | 0

Overlay of dashed cells on imagesc

I just answered a question like this, but you have a unique aspect with the pattern. See if you can make sense of this: %% ...

5 years ago | 1

| accepted

overlay 2 imagesc, where one is a section of the larger

This is kinda messy to do in MATLAB. See if you can decipher this: %% Inputs A = rand(100,100); %Big Image B = 2*rand...

5 years ago | 1

Will uifigure allow plot toolbar in a future release?

While this is something only an insider will know at this point, I will point out as a workaround that you can still "pop" a fig...

5 years ago | 1

How can I convert STL file into stacks of 2D images?

Laziest and slowest way of doing this, but probably the most surefire way, is to use a scattered interpolant. Depending on the t...

5 years ago | 0

How to plot the content of a Structure without using a for loop?

Yes, in a way that is not apparent at first look, but very simple when you think about it: [pop.Position] I believe you ...

5 years ago | 0

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Why do I get Error: File: exercise_1_b.m Line: 8 Column: 28 Unexpected MATLAB operator.

s_t = A_c * (1 + k_a * m_t) .* cos(2 * pi * f_c * t); The operator is ".*" not ". *". That being said there are still othe...

5 years ago | 0

How do I separate date and time of a raw date?

arrayfun(@(x) strsplit(x,' '),string(a),'UniformOutput',false) string(a) - this makes the data easily process-able, convert...

5 years ago | 1

| accepted

Centroid of thin-edged (One Pixel thickness) connected blobs

regionprops(bwconncomp((imfill(A,'holes')-A),4),'centroid') 1) Fill the holes/"blobs" in the image. 2) Subtract the boun...

5 years ago | 0

| accepted

How can you call a LabVIEW VI from MATLAB script?

If you have them both installed this should just work: !test.vi

5 years ago | 1

| accepted

Extracting iso-surface in n dimensional space

You can actually get a semi-accurate pixelized estimation of this very fast (O(nlogn)) regardless of dimensions using a mean fil...

5 years ago | 1

App Designer- How do I get my drop down box to output to Edit Field boxes?

Ok, first of all something that should have been immediately visible that I didn't notice before failing to run your app is that...

5 years ago | 0

| accepted

Can't seem to properly debug "In an assignment A(:) = B..." error

I am guessing this error is due to null matrices appearing as a result of this call: find(croppedImage(:, col), 1, 'last');...

5 years ago | 0

| accepted