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**Content Feed**

Right measure for logistic regression of imbalance data and dealing with Complete Separation

It's probably a bit late for your original problem, but since it's an important question and MATLAB still lacks such important f...

6 months ago | 0

Submitted

bfilereader

bfilereader: Efficient processing of big delimited files in MATLAB

8 months ago | 2 downloads |

How to get the sum of squares in GLM model summary ?

You can get SST, SSE and SSR: mdl = fitglm(rand(100, 2), randi([0 1], 100, 1), 'dist', 'binomial', 'link', 'logit'); mdl.SSE...

8 months ago | 0

| accepted

Question

tall array within a parfor?

Consider the following scenario: ds = datastore(...); dst = tall(ds); parfor ... % warning here: dst is a broadca...

8 months ago | 1 answer | 0

### 1

answerSort cell numbers ?

If by sort, you mean sort within each element of cell array: G = {[-83;-84] [-65] [-50;-47] [-33;-30] [-26;-22] [-16;-15] [-6; ...

9 months ago | 0

Using movmean to calculate mean of first and last element in array

What about this? a = [1 5 8 10]; ma = movmean([a, a(1)], [0 1], 'Endpoints', 'discard')

9 months ago | 0

| accepted

exportgraphics dynamic file name

% A = {'name1', ...} for k = 1:16 %rest of the code c = colorbar; c.Label.String = A{k}; ...

9 months ago | 1

| accepted

stepwiseglm model seems to be missing parameters?

It does include both. You should mind the model formula in MATLAB (AKA Wilkinson Notation): x1*x2 is x1 + x2 + x1:x2. See also...

9 months ago | 0

| accepted

Create a double identity matrix matlab

Maybe not the best way, but works: % taken from doc kron n = 12; I = speye(n, n); E = sparse(2:n, 1:n-1, 1, n, n); K = fu...

9 months ago | 0

Vector dimesions are different before encoding json and after decoding json

How about this? mystr.f1 = 1:4; mystr.f2 = (1:4).'; js = jsonencode(mystr); newstr = jsondecode(js) fnames = fieldnames...

9 months ago | 0

| accepted

How do I match an annotations.json file with their respective images from an image folder?

Try this js = jsondecode(fileread("annotations.json.txt")) % file extension was changed only for upload % get info of first ...

9 months ago | 0

How to add to Matlab a path with a @Folder

See here www.mathworks.com/matlabcentral/answers/1659190-why-addpath-is-not-working?

9 months ago | 2

| accepted

Can MATLAB save the Profiler results table (Function Name, Calls, etc.) to a text file or a spreadsheet?

info = load("info.mat").info; infotab = struct2table(info.FunctionTable); infotabMain = infotab(:, ["FunctionName", "NumCalls"...

9 months ago | 0

| accepted

Estimate p-values of fitted parameters using armax from sysid toolbox

armax returns parameters and their uncertainties; then you can calculate the p-values. load iddata9 z9 na = 4; nc = 1; sys ...

9 months ago | 0

| accepted

Optimization of manipulating an array

a = [1, 0, 5, 0, 6, 0, 12, 0]; b = a; a_adj_mean = movmean(a(1:2:end), 2); zero_idx = a == 0; b(zero_idx(1:end - 1)) = a_a...

9 months ago | 0

| accepted

calculate the number of times each codon appears in a .mat file

Maybe this example would help: % create a random DNA seq dna_codes = ['A', 'T', 'G', 'C']; dna_str = string(dna_codes(randi(n...

9 months ago | 0

jsonecode doesn't support complex doubles

Here says: "JSON has no standard way to represent complex numbers, so there is no way to test for them in JSON Schema." Here a...

9 months ago | 0

| accepted

Increase width of x axis

You need to set gca and not gcf: set(gca, 'Position', ...)

9 months ago | 0

Combine hundred of mat files into one mat file (same quantity of row and column)

You can load all together: files = ["bearing1_1_1.mat", "bearing1_1_2.mat"]; % add all files here, use dir or ls ds = fileData...

10 months ago | 0

retrieve data from a website with multiple pages

My answer doesn't totally solve your problem, but addresses your main questions (hopefully!). Before parsing the HTML itself, w...

10 months ago | 0

| accepted

Find the position of elements of an array in another array and measure the euclidean distance between two array elements.

X = [11 12 13 21 22 23]; A = [11 22 21 13 12 23]; B = [11 13 21 23 22 12]; [~, Q] = ismember(X, B) [~, P] = ismember(X, A)...

10 months ago | 0

| accepted

Create timeseries of a 3d scattered plot

If you want to create an animation (GIF for instance) or a movie (e.g. AVI), you can: % see: https://mathworks.com/matlabcentra...

10 months ago | 0

| accepted

How to execute for-loop iterations in parallel

You don't need even a loop (parfor aside) for this (and I guess you don't even need ind2sub depending on your true purpose here)...

10 months ago | 0

Fixed Effects Design Matrix Must be of full column rank with multiple categorical predictors

The error is self-explanatory, and the reason is full dummy variable scheme you're using (why?). See here https://mathworks.com/...

10 months ago | 0

Why does my graph get sent to the end of the html when I publish it?

I cannot reproduce this behavior.

10 months ago | 0

Why do I receive Vectors must be the same length error in this code?

Error is very obvious: y and t1 don't have the same length. Try this t1 = linspace(1, max(y), length(y)); plot(t1, y)

10 months ago | 0

Can I use my CPU and GPU simultaneously for Numerical Simulation?

Technically, yes you can (given that you've installed CUDA) combine both. However, whether or not you get anything useful out of...

10 months ago | 0

Make a 2D plot with one arbitrary axis

You can start with something like this bpoints = [6.88, 7.84]; color = summer(numel(bpoints) + 1); % or whatever colors you li...

10 months ago | 0

| accepted

How to compare two different excel sheets specific columns for like values

xlsread is deprecated, avoid it. fullTab = readtable('File1.xlsx'); denseTab = readtable('File2.xlsx'); [idxFull, idxDens...

10 months ago | 0

How to extract a subset of a field from a structure while keeping respective information from the other fields?

field components doesn't have the same size as others. Maybe it's better if you provide part of your struct at least. Anyways, y...

10 months ago | 2

| accepted