Respondida
How do a cell2mat conversion for a non-uniform cell to a matrix
Do it in several steps as follows: idx.size = cellfun(@length,DD); idx.padded = max(idx.size)-idx.size; DDpadded = cellfun(@(...

más de 4 años hace | 1

| aceptada

Respondida
Differentiate between oval and circle shaped images using MATLAB
You may try function bwconvhull by adding the following 2 lines. However, I am not sure how robust it is for other pictures. B...

más de 4 años hace | 0

Respondida
how to join the values of different cells in different columns in one cell ?
Suppose you read the file using function readtable and the name of the table is T, then variable C in the following will give yo...

más de 4 años hace | 0

Respondida
How to change the color of my plots
Just put the color code for the markers. May try the following: for n=.3*N:N x=(1-d).*x.*exp(a.*(1-x).*((x/0.2)-1))+d.*y.*...

más de 4 años hace | 0

| aceptada

Respondida
Fix "index exceeds number of array elements"
j is going to be the index and hence theta_x should not be use Try the following: for j=1:length(theta_x) s(j)=L1(j)^2+L2...

más de 4 años hace | 0

| aceptada

Respondida
How to use writematrix to create a single xlsx file with multiple sheets with name of the analysis file?
Use function <https://www.mathworks.com/help/matlab/ref/fileparts.html fileparts> to extract the name instead of the entire file...

más de 4 años hace | 1

Respondida
find ID's of repeated values in array
You may use a for loop as follows: idx = zeros(1,length(t1)); for k = 1:length(t1) idx(k) = find(ismember(t2,t1(k))); en...

más de 4 años hace | 0

| aceptada

Respondida
cration of contents inside the cell array of uniform size
May try the following to add NaN to the new rows load('data.mat'); addrow = cellfun(@(x) 8-size(x,1),Data,'uni',0); result = ...

más de 4 años hace | 0

Respondida
Why is it not working?
Index jj is not defined inside the for-loop, i guess the code should be modified as the following for ii=1:26 for jj = 1:2...

más de 4 años hace | 0

| aceptada

Respondida
Index in position 2 exceeds array bounds (must not exceed 1) ?
One of the input argument is variable 'c' and you use the same name again for the size of variable 'a' and hence gives you an er...

más de 4 años hace | 1

| aceptada

Respondida
Area fill under a curve
Check the MATLAB documentation about area. w is a function handle and it is not supported. Try the following: x=linspace(0,2*...

más de 4 años hace | 0

Respondida
Separate 24 digits single array of data loaded from file into 6 different arrays
Try the following by converting the text using function num2cell. clear; clc; fid = fopen('data.txt'); d = textscan(fid,'%s')...

más de 4 años hace | 0

| aceptada

Respondida
Edge detection in gradient images
Try Otsu's method rawdata=imread('capture 1.png'); I = rgb2gray(rawdata); level = graythresh(I); BW = imbinarize(I,level); ...

más de 4 años hace | 1

Respondida
what happened to my install ?how to solve this proplem?
If your installation runs on WIndows, please check whether you have adminstrator right or not. On the other hand, you may refer...

más de 4 años hace | 0

Respondida
Plot 3D surface from Excel .csv File
You may extract the data using function readmatrix. clear; clc; rawdata = readmatrix('data.csv'); x = reshape(rawdata(:,1),[]...

más de 4 años hace | 3

| aceptada

Respondida
How to write new data to the existing excel file?
You may replace the entire loop by using 'Append' as follows: writetable(T,'Results.xlsx','UseExcel', true, 'WriteMode','Append...

más de 4 años hace | 0

Respondida
Plots with different colors
Put the index and hold on inside the loop figure(1) for i=1:length(Re) if Re(i) < 2*10^3 loglog(Re(i),f(i),'xb','Lin...

más de 4 años hace | 0

| aceptada

Respondida
How can I set the colorbar for a specific series of value ?
Adjust the Limits and Ticks as follows: cb = colorbar cb.Limits = [300 2100]; cb.Ticks=300:300:2100;

más de 4 años hace | 0

| aceptada

Respondida
Best fit line in log-log scale
Like this? p=polyfit(log(X),log(Y),1); y=polyval(p,log(X)); figure(1) loglog(Re,f,'x','LineWidth',1) hold on loglog(X,exp(...

más de 4 años hace | 0

| aceptada

Respondida
How to sort a 3D matrix according to the value of each element?
If I understand correctly, you would like the larger value(s) in the last rows and the largest one on the bottom right hand cor...

más de 4 años hace | 0

Respondida
using matlab fileread function for some portion of text data
Use function textscan to read the first 50 lines and the header will be stored on a cell array. fid = fopen(fullfile(filepath,f...

más de 4 años hace | 1

| aceptada

Respondida
Subplot arrangement: 6 by 2 plot
Try this: figure(1) subplot(6,2,1) plot(1:10,randi(10,1,10)) hold on subplot(6,2,3) plot(1:10,randi(10,1,10)) subplot(6,2...

más de 4 años hace | 0

| aceptada

Respondida
How to label the centers of circles according to their position on axes?
Try this and still using function text: clear; clc; I = ones(400,600); sorted_centers_x = repmat(50:100:550,1,4); sorted_cen...

más de 4 años hace | 1

| aceptada

Respondida
How to use imwrite from dicom to png
It may contains more than one image and hence you need to save it one by one: Following code for your reference: [I, cmap] = d...

más de 4 años hace | 0

| aceptada

Respondida
Specific conditions for array elements
You may simply combine them together as follows: B = (A>10)*(9^2)+(A==10)*0+(A<10)*(20^0.5);

más de 4 años hace | 1

Respondida
Replacing Empty Cells by NaN
T.Var1=NaN(size(T.Var1,1),1); % Replace T.Var1 by NaN T.Var16=NaN(size(T.Var16,1),1); ...

más de 4 años hace | 0

Respondida
How do I concatenate the same table n-times vertically?
Try this: biggertable=repmat(T,1000,1);

más de 4 años hace | 1

| aceptada

Respondida
I'm working on an example where I'm getting a logical error possibly. I want to replace every element of a matrix by the minimum of its neighborhood.
The value of N will be very large in the loop and gives an error. Try the following to replace each element of the matrix by by...

más de 4 años hace | 0

| aceptada

Respondida
Unrecognized function or variable 'wavread'.
It requires Signal Processing Toolbox, type 'ver' in the Command WIndow to check whether you have the right Toolbox or not.

más de 4 años hace | 0

Respondida
stl file rendering is not working can you help me to solve it?
You may need <https://www.mathworks.com/help/matlab/ref/trisurf.html trisurf> or <https://www.mathworks.com/help/matlab/ref/trip...

más de 4 años hace | 0