Community Profile

photo

Ive J


Last seen: 7 giorni fa |  Attivo dal 2013

Contatto

Computational biologist.

Statistics

All
  • Knowledgeable Level 5
  • Pro
  • 6 Month Streak
  • First Submission
  • GitHub Submissions Level 1
  • First Answer
  • Thankful Level 3

Visualizza badge

Content Feed

Visto da

Risposto
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...

8 mesi fa | 0

Inviato


bfilereader
bfilereader: Efficient processing of big delimited files in MATLAB

9 mesi fa | 2 download |

Thumbnail

Risposto
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...

10 mesi fa | 0

| accettato

Domanda


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

10 mesi fa | 1 risposta | 0

1

risposta

Risposto
Sort 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; ...

10 mesi fa | 0

Risposto
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')

10 mesi fa | 0

| accettato

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

10 mesi fa | 1

| accettato

Risposto
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...

10 mesi fa | 0

| accettato

Risposto
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...

11 mesi fa | 0

Risposto
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...

11 mesi fa | 0

| accettato

Risposto
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 ...

11 mesi fa | 0

Risposto
How to add to Matlab a path with a @Folder
See here www.mathworks.com/matlabcentral/answers/1659190-why-addpath-is-not-working?

11 mesi fa | 2

| accettato

Risposto
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"...

11 mesi fa | 0

| accettato

Risposto
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 ...

11 mesi fa | 0

| accettato

Risposto
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...

11 mesi fa | 0

| accettato

Risposto
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...

11 mesi fa | 0

Risposto
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...

11 mesi fa | 0

| accettato

Risposto
Increase width of x axis
You need to set gca and not gcf: set(gca, 'Position', ...)

11 mesi fa | 0

Risposto
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...

11 mesi fa | 0

Risposto
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...

11 mesi fa | 0

| accettato

Risposto
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)...

11 mesi fa | 0

| accettato

Risposto
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...

12 mesi fa | 0

| accettato

Risposto
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)...

12 mesi fa | 0

Risposto
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/...

12 mesi fa | 0

Risposto
Why does my graph get sent to the end of the html when I publish it?
I cannot reproduce this behavior.

12 mesi fa | 0

Risposto
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)

circa un anno fa | 0

Risposto
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...

circa un anno fa | 0

Risposto
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...

circa un anno fa | 0

| accettato

Risposto
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...

circa un anno fa | 0

Risposto
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...

circa un anno fa | 2

| accettato

Carica altro