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Content Feed
Question
Why do we get different results here?
I have two functions namely "myfunAskMathworks.m" and "ByAskic.m". The latter is a modified version of the 1st one. In the 1st o...
19 days ago | 2 answers | 0
2
answersQuestion
The code works but it gives this warning. How to remove this warning?
In the attachment, run the "main.m" file. It works but it continuiusly gives the following warning types: Warning: Integer oper...
22 days ago | 2 answers | 0
2
answersQuestion
Why this piece of code gives error?
When I run the following code, it gives me error on line 19. The code is: clear;clc; c = 3e8; % signal propagation spee...
26 days ago | 1 answer | 0
1
answerQuestion
Why the 2nd code does not behave like the 1st code?
In the attached code of "myfunAskMathworks.m", yo and ye both are of the order 36x1 and these are correct. But in the other atta...
26 days ago | 2 answers | 0
2
answersQuestion
Is there a way to reduce execution time of the following because it took 6 hours and still is executing?
I have attached a file 'main.m'. I started to run main.m at 1:50pm today and still its going on executing and I don't know when ...
1 month ago | 1 answer | 0
1
answerQuestion
Why this code says unrecognized function u?
I had a GA code which was generated by GA in earlier MATLAB version. But I had used there global variables. Later on, I replaced...
1 month ago | 1 answer | 0
1
answerQuestion
Why does this code give error?
I want to implenet timeit() function to find the machine time for the execution of the m-file 'fpa1.m'. But when I run the attac...
1 month ago | 1 answer | 0
1
answerQuestion
why estimating 3 values takes longer time than estimating 4 values?
In the attached code, when we estimate 2 values of u, it takes less time than the case where we estimate 3 values of u? It seems...
1 month ago | 1 answer | 0
1
answerQuestion
How to find the total memory used during the execution of the code?
To find the efficiency of my algorithm, I searched this site: URL: https://www.kdnuggets.com/2022/09/calculate-algorithm-effici...
1 month ago | 2 answers | 0
2
answersQuestion
How to find the efficiency of an algorithm?
I have an algorithm fpa1. How can I find its efficiency? All the required files are in the attachment. You can run the main file...
1 month ago | 1 answer | 0
1
answerQuestion
How can we reduce the execution time of this whole code?
I want to minimize the "execution time" of the code given in the attachment. You can run the m file "main".
2 months ago | 1 answer | 0
1
answerQuestion
Why legend is not displayed?
How can I display the legend at my desired side outside the figure? I run the following code but it doesn't work: clear all; cl...
2 months ago | 1 answer | 0
1
answerQuestion
How to display a message as flashing and in my desired color and font size?
I want to display the following message in flashing and in my desired color and font size: " Yes, the error is the same " I ...
2 months ago | 2 answers | 0
2
answersQuestion
How to remove all for-loops with vectorization?
I have the following piece of code. I have posted similar codes earlier also and therefore 1st I tried myself to vectorize it bu...
2 months ago | 1 answer | 0
1
answerQuestion
How to replace all row vectors except 1st according to the difference?
I have a matrix named as 'two' of size 100 x 4. I have also a singe row vector u=[-55 55 65 -65]; Let we find the error ...
2 months ago | 1 answer | 0
1
answerQuestion
How to replace the array data in workspace data?
I have three Mat files namely '2sn0dB.mat', '3sn0dB.mat' and '4sn0dB.mat'. All of them have array 0f size 100 x 1 and having sam...
2 months ago | 1 answer | 0
1
answerQuestion
How to replace the values of a vector from desired location to its end?
I have three vectors a, b and c given below. I want to replace all the values of 'a' from my desired location say for example fr...
2 months ago | 2 answers | 0
2
answersQuestion
How to arrange a matrix in descending order w.r.t rows?
If we have a large matrix and we want to arrange it in descending order i.e., the largest row shoud come on top, then 2nd larges...
2 months ago | 2 answers | 0
2
answersQuestion
How to find the vector b if we know the RMSE?
If we have two vectors given by: a=[3,6,8,20,35,45]; b=[3.0343, 6.2725, 8.5846, 18.3781, 34.2025, 44.9699]; Then its Mean Squ...
2 months ago | 2 answers | 0
2
answersQuestion
How to replace all for-loops ?
I had posted a function here for vectorization. Now this is the same function and even I tried myself to replace all for-loops l...
2 months ago | 1 answer | 0
1
answerQuestion
How to recover Mat data?
I had saved my worksapce data with the name 'abc'. This had many variables some of which were scalars and some of which were vec...
3 months ago | 1 answer | 0
1
answerQuestion
I don't understand why does it give error?
I downloaded the following code from Mathworks site whose URL is : URL: https://www.mathworks.com/matlabcentral/fileexchange/52...
3 months ago | 1 answer | 0
1
answerQuestion
How to vectorize this piece of code by replacing all the for-loops?
I want to vectorize the following piece of code so that it becomes fast. But M and N can be only coprime numbers and N < M alway...
3 months ago | 2 answers | 0
2
answersQuestion
How to reduce its execution time and why the value of e is a column vector?
I have the following piece of code. clc;clear all; c = 340; f = 3400; d = c/f/2; T = 1; ...
3 months ago | 2 answers | 0
2
answersQuestion
how to reduce its computing time?
u=[30 40 50 70]; b=u; [~,C]=size(b); P=C/2; M=10; xo=zeros(1,M); yo=zeros(1,M); zo=zeros(1,M); for k=1:M for i=1:...
3 months ago | 1 answer | 0
1
answerQuestion
Why does it give wrong answer?
I took a code from the Mathworks site given below: URL: https://www.mathworks.com/help/phased/ref/rootmusicdoa.html N = 10; d...
3 months ago | 0 answers | 0
0
answersQuestion
Why this code gives error on line 47?
I downloaded the code attached from the following URL of Mathworks site: URL: https://www.mathworks.com/matlabcentral/fileexcha...
3 months ago | 1 answer | 0
1
answerQuestion
How to reduce its execution time?
I have the following piece of code. It works but takes time. How can we reduce its time to a very minimum value? u=[1 3 5 7 20 ...
3 months ago | 2 answers | 0
2
answersQuestion
Same code but different results-very strange?
I asked a question on December 10, 2022 on this forum. The URL of the question is: https://www.mathworks.com/matlabcentral/answ...
3 months ago | 0 answers | 0
0
answersQuestion
How to invoke and use GA tool in Matlab R2022b?
I typed optimtool in Matlab R2022b to invoke the GA Tool but its' not there. Can anybody guide me how to invoke and use GA tool ...
3 months ago | 1 answer | 0
1
answer
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