60 total contributions since 2014

Senior Quantitative Analyst

MATLAB user since 2005

Answered

I can't plot during my loop! Help!

Hi you could use plot(i,sumX,'k*'); % set black asterisk <</matlabcentral/answers/uploaded_files/46684/mathworks_plot...

I can't plot during my loop! Help!

Hi you could use plot(i,sumX,'k*'); % set black asterisk <</matlabcentral/answers/uploaded_files/46684/mathworks_plot...

5 years ago | 0

Answered

Is it possible to stitch two subplot images together, without any gap in between the subplot images?

Hi you can use <http://www.mathworks.com/matlabcentral/fileexchange/27991-tight-subplot subplot_tight> from the FEX. to remove ...

Is it possible to stitch two subplot images together, without any gap in between the subplot images?

Hi you can use <http://www.mathworks.com/matlabcentral/fileexchange/27991-tight-subplot subplot_tight> from the FEX. to remove ...

5 years ago | 0

Answered

How to 'divide' the x-axis based on y-values?

Hi, There are really many and nice ways to take the desire output...here just one quick solution with some patches x = l...

How to 'divide' the x-axis based on y-values?

Hi, There are really many and nice ways to take the desire output...here just one quick solution with some patches x = l...

5 years ago | 1

| accepted

Answered

Help regarding usage of Anonymous functions

Hi, Firstly i fully agree with the comment of Star Strider. Because as you say you are "newbie" to matlab i would suggest you...

Help regarding usage of Anonymous functions

Hi, Firstly i fully agree with the comment of Star Strider. Because as you say you are "newbie" to matlab i would suggest you...

5 years ago | 0

Answered

I have few excel program that I needed to be read by MATLAB. Now I want to enter the file name as an input. How do I make Matlab read that input file name?

Hi, <http://de.mathworks.com/help/matlab/ref/xlsfinfo.html xlsfinfo> will get you a list of sheet names into your Excel file....

I have few excel program that I needed to be read by MATLAB. Now I want to enter the file name as an input. How do I make Matlab read that input file name?

Hi, <http://de.mathworks.com/help/matlab/ref/xlsfinfo.html xlsfinfo> will get you a list of sheet names into your Excel file....

5 years ago | 0

| accepted

Answered

How to find 'numbers' of unique variable in matrix. How many quantity of variables.

Hi, To reformulate your question (as I understood it) you would like to be able to return the count of occurrences of each el...

How to find 'numbers' of unique variable in matrix. How many quantity of variables.

Hi, To reformulate your question (as I understood it) you would like to be able to return the count of occurrences of each el...

5 years ago | 1

| accepted

Answered

How to call a function of a matlab file in another matlab file ?

The first function in an m-file (i.e. the main function), is invoked when that m-file is called. It is not required that the mai...

How to call a function of a matlab file in another matlab file ?

The first function in an m-file (i.e. the main function), is invoked when that m-file is called. It is not required that the mai...

6 years ago | 3

Answered

how to find the element which is greater than or equal to its row and smaller or equal to its column in a matrix

Dear Muhammad, You know it's very unfair continuously to ask the forum to solve your exercises/homework. I can understand you...

how to find the element which is greater than or equal to its row and smaller or equal to its column in a matrix

Dear Muhammad, You know it's very unfair continuously to ask the forum to solve your exercises/homework. I can understand you...

6 years ago | 1

Answered

Is there a method to extract all the data from a nested cell array when each nested cell is of a different size?

Hi George, My first thought would be to apply a recursive function using the <http://de.mathworks.com/help/matlab/ref/cellfun...

Is there a method to extract all the data from a nested cell array when each nested cell is of a different size?

Hi George, My first thought would be to apply a recursive function using the <http://de.mathworks.com/help/matlab/ref/cellfun...

6 years ago | 0

| accepted

Answered

I have problem with using fopen

Hi Ahmed, Have you read the documentation for the function <http://de.mathworks.com/help/matlab/ref/fopen.html fopen> ? ...

I have problem with using fopen

Hi Ahmed, Have you read the documentation for the function <http://de.mathworks.com/help/matlab/ref/fopen.html fopen> ? ...

6 years ago | 0

Answered

Export data from CSV file as a vector.

As I miss your sample of data, I have created one by myself (attached Data.csv). Below you can find a script that read this type...

Export data from CSV file as a vector.

As I miss your sample of data, I have created one by myself (attached Data.csv). Below you can find a script that read this type...

6 years ago | 1

| accepted

Answered

Standard builtin function for euclidean distance matrix?

what about <http://de.mathworks.com/help/stats/pdist.html pdist>? % Compute the ordinary Euclidean distance. X = [1,...

Standard builtin function for euclidean distance matrix?

what about <http://de.mathworks.com/help/stats/pdist.html pdist>? % Compute the ordinary Euclidean distance. X = [1,...

6 years ago | 1

Answered

I want to calculate this integral

Hi Ujjal, In your case you have to numerically evaluate an integral of a 4-variable function. Mathworks provides built-in fun...

I want to calculate this integral

Hi Ujjal, In your case you have to numerically evaluate an integral of a 4-variable function. Mathworks provides built-in fun...

6 years ago | 0

Answered

How can I use structs as x input for Matlabs optimization methods?

Hi Carolin, Have you seen <http://de.mathworks.com/help/gads/create-a-problem-structure.html Create Problem Structure> ? ...

How can I use structs as x input for Matlabs optimization methods?

Hi Carolin, Have you seen <http://de.mathworks.com/help/gads/create-a-problem-structure.html Create Problem Structure> ? ...

6 years ago | 0

Answered

Using for loop to load multiple mat files of different names

Hi Jonathan, You are quite close. If you want to process all the files whose name matches a pattern in a directory, you can u...

Using for loop to load multiple mat files of different names

Hi Jonathan, You are quite close. If you want to process all the files whose name matches a pattern in a directory, you can u...

6 years ago | 4

Answered

how to find the standard deviation of one file which i want to run it for 100 times.

Hi, Assuming your function is the "PathGen" (because you haven't posted or uploaded anything) with 2 outputs [Path,Time...

how to find the standard deviation of one file which i want to run it for 100 times.

Hi, Assuming your function is the "PathGen" (because you haven't posted or uploaded anything) with 2 outputs [Path,Time...

6 years ago | 0

Answered

Importing multiple datasets from one text file

Hi, I assume that <http://de.mathworks.com/help/matlab/ref/dlmread.html dlmread> will do the job that you need from the time ...

Importing multiple datasets from one text file

Hi, I assume that <http://de.mathworks.com/help/matlab/ref/dlmread.html dlmread> will do the job that you need from the time ...

6 years ago | 0

Answered

How can I use input values to create an array?

xi = []; % Initialize array/vector for i=1:5 xii = input('Enter value or enter 100 to stop: '); if xii==100 ...

How can I use input values to create an array?

xi = []; % Initialize array/vector for i=1:5 xii = input('Enter value or enter 100 to stop: '); if xii==100 ...

6 years ago | 0

Answered

Saving Cell array and String to text file.

Hi, Can you try fid = fopen(FilePath,'w'); fprintf(fid,'%s\n',cellfun(@(x) char(x),Cell_in,'UniformOutput',false)); ...

Saving Cell array and String to text file.

Hi, Can you try fid = fopen(FilePath,'w'); fprintf(fid,'%s\n',cellfun(@(x) char(x),Cell_in,'UniformOutput',false)); ...

6 years ago | 1

Answered

Binary data processing in an algorithm

Hi Does <http://de.mathworks.com/help/matlab/ref/bitshift.html bitshift> help you? a = intmax('uint8'); s1 = 'Initi...

Binary data processing in an algorithm

Hi Does <http://de.mathworks.com/help/matlab/ref/bitshift.html bitshift> help you? a = intmax('uint8'); s1 = 'Initi...

6 years ago | 1

| accepted

Answered

how to find locations of consecutive blocks of ones

Hi Imola, If i understood well you want to build a vector which contains the maximum number of consecutive 1s values of each ...

how to find locations of consecutive blocks of ones

Hi Imola, If i understood well you want to build a vector which contains the maximum number of consecutive 1s values of each ...

6 years ago | 1

Answered

Assigning values to vectors of different lenghts

Hi, if your starting point is that you have *a* and *c* you can make *d* from *b* as [~,idx] = ismember(c,a); d = ...

Assigning values to vectors of different lenghts

Hi, if your starting point is that you have *a* and *c* you can make *d* from *b* as [~,idx] = ismember(c,a); d = ...

6 years ago | 1

| accepted

Answered

I did this codes but its not working,can anyone figure out whats wrong?

Hi, *Resize an image using imresize* If you have the Image processing toolbox installed then you could use <http://de.math...

I did this codes but its not working,can anyone figure out whats wrong?

Hi, *Resize an image using imresize* If you have the Image processing toolbox installed then you could use <http://de.math...

6 years ago | 2

Answered

Call file names one by one from an array

Hi, By d.name you call all names,instead use d(idx).name to call the required filename for idx=1:length(d) input...

Call file names one by one from an array

Hi, By d.name you call all names,instead use d(idx).name to call the required filename for idx=1:length(d) input...

6 years ago | 0

Answered

Unnest a Matrix of strings

Hi, You could use simple the <http://de.mathworks.com/help/matlab/ref/vertcat.html vertcat> vertcat(M{:}) Example: ...

Unnest a Matrix of strings

Hi, You could use simple the <http://de.mathworks.com/help/matlab/ref/vertcat.html vertcat> vertcat(M{:}) Example: ...

6 years ago | 0

Answered

how do I create the below Matrix?

Hi, As James wrote you:Have you reviewed the doc on <http://de.mathworks.com/help/matlab/ref/diag.html diag> to see how to ge...

how do I create the below Matrix?

Hi, As James wrote you:Have you reviewed the doc on <http://de.mathworks.com/help/matlab/ref/diag.html diag> to see how to ge...

6 years ago | 0

| accepted

Answered

solve residue by matlab

I would suggest to use L'Hôpital's rule but you could use also the following <http://www.mathworks.com/matlabcentral/fileexchang...

solve residue by matlab

I would suggest to use L'Hôpital's rule but you could use also the following <http://www.mathworks.com/matlabcentral/fileexchang...

6 years ago | 0

Answered

Replace String with a NaN in table

Hi, _" I guess they are strings"_ ...you cannot open your table or see in the workspace what type are they? Do you mean so...

Replace String with a NaN in table

Hi, _" I guess they are strings"_ ...you cannot open your table or see in the workspace what type are they? Do you mean so...

6 years ago | 2

Answered

Write a function to determine which elements of an array are even numbers (i.e., …, -4, -2, 0, 2, 4, …). Your function should return a logical array of the same size as the input with 1s (TRUE) in the locations corresponding to even numbers.

funvtion Out = findeven(In) Out = ~mod(In,2) end Assuming: In = -6 -5 -2 0 ...

Write a function to determine which elements of an array are even numbers (i.e., …, -4, -2, 0, 2, 4, …). Your function should return a logical array of the same size as the input with 1s (TRUE) in the locations corresponding to even numbers.

funvtion Out = findeven(In) Out = ~mod(In,2) end Assuming: In = -6 -5 -2 0 ...

6 years ago | 0

| accepted

Answered

Surface under the curve

*griddata* is the key function Does this helps <http://www.mathworks.com/matlabcentral/answers/184254-how-to-plot-a-2d-matrix...

Surface under the curve

*griddata* is the key function Does this helps <http://www.mathworks.com/matlabcentral/answers/184254-how-to-plot-a-2d-matrix...

6 years ago | 0