Answered

Cyclic Redundancy Check function

As far as I can see, crcreceive.m is missing a portion of code present in the FullCode divisor = bitshift(divisor,messageLength...

Cyclic Redundancy Check function

As far as I can see, crcreceive.m is missing a portion of code present in the FullCode divisor = bitshift(divisor,messageLength...

5 månader ago | 0

| accepted

Answered

Creating a cosine oscillation ( cos(2 * pi * f * k * T) )

Hi Ahmad, you can can think of k*T as a time vector, one example is: k = 1:2000; T = 1/Fs; tf = k*T; y = A*cos(2*pi*f*k*T); ...

Creating a cosine oscillation ( cos(2 * pi * f * k * T) )

Hi Ahmad, you can can think of k*T as a time vector, one example is: k = 1:2000; T = 1/Fs; tf = k*T; y = A*cos(2*pi*f*k*T); ...

6 månader ago | 0

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Answered

Hello, why Matlab does not check for second condition and give an answer without checking second condition after AND short circuit operator?

Hi Aknur, in the example below, the part after && is evaluated. BTW, operators || and && are so called short-circuit operators...

Hello, why Matlab does not check for second condition and give an answer without checking second condition after AND short circuit operator?

Hi Aknur, in the example below, the part after && is evaluated. BTW, operators || and && are so called short-circuit operators...

6 månader ago | 0

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Answered

what is r. in the pagerank algorithm

Hi Kellie, you probably mean on the following equation: r = (1-P)/n + P*(A'*(r./d) + s/n); % r is a vector of PageRank scores...

what is r. in the pagerank algorithm

Hi Kellie, you probably mean on the following equation: r = (1-P)/n + P*(A'*(r./d) + s/n); % r is a vector of PageRank scores...

6 månader ago | 0

Answered

Why do we get different results here?

@Sadiq Akbar I'm puzzled too. In general, the results are not correct event sometimes are. For example, the result is wrong for...

Why do we get different results here?

@Sadiq Akbar I'm puzzled too. In general, the results are not correct event sometimes are. For example, the result is wrong for...

6 månader ago | 0

Answered

How to express this equation to convert y values to a new vector and plot as a function of x?

websave('test.xlsx','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1321170/test.xlsx'); data = xlsread('test...

How to express this equation to convert y values to a new vector and plot as a function of x?

websave('test.xlsx','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1321170/test.xlsx'); data = xlsread('test...

7 månader ago | 0

Answered

Solving for Variables contained an interval

fun = @(x) (sin(x) .* (2.* cos(x) - 1)) ./ (1 + 2 .* cos(x)); % function x0 = [0.1 2]; % initial interval x = fzero(fun,x0) ...

Solving for Variables contained an interval

fun = @(x) (sin(x) .* (2.* cos(x) - 1)) ./ (1 + 2 .* cos(x)); % function x0 = [0.1 2]; % initial interval x = fzero(fun,x0) ...

7 månader ago | 1

Answered

Why do we get different results here?

Can you try with the following ByAskic.m function: function e = ByAskic(b,u) % u = [10 20 30 40];b = u; N = 10;%6; % Tx anten...

Why do we get different results here?

Can you try with the following ByAskic.m function: function e = ByAskic(b,u) % u = [10 20 30 40];b = u; N = 10;%6; % Tx anten...

7 månader ago | 0

Answered

MATLAB Newton Raphson method with array - Stephan problem

Is this what you wanted to achieve? clear clc close all a0 = -0.00401; a1 = 1.18669; a2 = -0.14559; a3 = -0.33443; a4 = ...

MATLAB Newton Raphson method with array - Stephan problem

Is this what you wanted to achieve? clear clc close all a0 = -0.00401; a1 = 1.18669; a2 = -0.14559; a3 = -0.33443; a4 = ...

7 månader ago | 0

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Answered

How to compute the AUC (Area Under Curve)?

I think this would be a correct way to do so, but I'm not 100% sure. It seems correct from the ROC diagrams: [x,t] = iris_datas...

How to compute the AUC (Area Under Curve)?

I think this would be a correct way to do so, but I'm not 100% sure. It seems correct from the ROC diagrams: [x,t] = iris_datas...

7 månader ago | 1

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Answered

How to use rlocfind in root locus.

You could start with this: help tf help rlocfind

How to use rlocfind in root locus.

You could start with this: help tf help rlocfind

7 månader ago | 0

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Answered

How do I preallocate for speed in the following code?

The most basic approach is given here: clc clear N = 9; S = 18.1; AR = 7; lambda = 0.8; ...

How do I preallocate for speed in the following code?

The most basic approach is given here: clc clear N = 9; S = 18.1; AR = 7; lambda = 0.8; ...

7 månader ago | 0

Answered

What is the difference between Step size and Sample Time ?

According to Matlab's documentation, The sample time of a block is a parameter that indicates when, during simulation, the bloc...

What is the difference between Step size and Sample Time ?

According to Matlab's documentation, The sample time of a block is a parameter that indicates when, during simulation, the bloc...

7 månader ago | 0

Answered

Is it possible numerical problem ?

This is called a round-off error caused by floating point arithmetic. Please read this (it is for Python, but equally applicabl...

Is it possible numerical problem ?

This is called a round-off error caused by floating point arithmetic. Please read this (it is for Python, but equally applicabl...

7 månader ago | 0

Answered

ploting electric field versud time

This is how can you read the contents of the file into variables. data_file = websave('phi_theta.txt','https://www.mathworks.co...

ploting electric field versud time

This is how can you read the contents of the file into variables. data_file = websave('phi_theta.txt','https://www.mathworks.co...

7 månader ago | 0

Answered

Integral of matrix determinant

I would do it symbolically: syms x f = det([1,x;0,2]); Q = int(f,0,1)

Integral of matrix determinant

I would do it symbolically: syms x f = det([1,x;0,2]); Q = int(f,0,1)

7 månader ago | 0

Answered

create a shuffleable datastore

A different approach would be to read csv file in a table and create datastore from the table. this datastore issubsetable and ...

create a shuffleable datastore

A different approach would be to read csv file in a table and create datastore from the table. this datastore issubsetable and ...

7 månader ago | 0

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Answered

Absurd result using 'integral2' with non-"centered" functions

@Torsten already answered, please keep in mind that integral2 still performs numerical integration. have a look at this: clear...

Absurd result using 'integral2' with non-"centered" functions

@Torsten already answered, please keep in mind that integral2 still performs numerical integration. have a look at this: clear...

7 månader ago | 1

Answered

Converting string to integer - indexing and multiple trials

If you look into your data in Matlab, you will see that CodeTimes is actually an array of doubles and not strings: cc = load (w...

Converting string to integer - indexing and multiple trials

If you look into your data in Matlab, you will see that CodeTimes is actually an array of doubles and not strings: cc = load (w...

7 månader ago | 0

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Answered

How do I properly use the "while", "for", "loop" command in this problem?

A = [71.213; 74.499; 79.175; 54.163; 83.008; 52.615]; B = length(A); %size of column (number of elements) %H = A(i); %Variable...

How do I properly use the "while", "for", "loop" command in this problem?

A = [71.213; 74.499; 79.175; 54.163; 83.008; 52.615]; B = length(A); %size of column (number of elements) %H = A(i); %Variable...

7 månader ago | 0

Answered

Legends in Bode plots do not support subscripts

g1=tf([1 0],[5 1]); bode(g1) title('\Gamma_h vs \omega') h = legend('$\Gamma\_h$','fontsize', 12); set(h, 'Interpreter', '...

Legends in Bode plots do not support subscripts

g1=tf([1 0],[5 1]); bode(g1) title('\Gamma_h vs \omega') h = legend('$\Gamma\_h$','fontsize', 12); set(h, 'Interpreter', '...

7 månader ago | 0

Answered

An unexpected discrepancy between xcorr, xcov and autocorr

When in doubt always read the documentation. doc xcov Matlab functions are very good documented. For example, you can read: x...

An unexpected discrepancy between xcorr, xcov and autocorr

When in doubt always read the documentation. doc xcov Matlab functions are very good documented. For example, you can read: x...

7 månader ago | 0

Answered

Why I couldn't plot this graph f=(@(x,y) (x.^2)+(x*y)+(y.^2)<=68200.^2/3);

And if you really insist on 68200^2/3, then this code will provide output f=@(x,y) x.^2+x.*y+y.^2-68200^2/3; fimplicit(f, 'b'...

Why I couldn't plot this graph f=(@(x,y) (x.^2)+(x*y)+(y.^2)<=68200.^2/3);

And if you really insist on 68200^2/3, then this code will provide output f=@(x,y) x.^2+x.*y+y.^2-68200^2/3; fimplicit(f, 'b'...

7 månader ago | 0

Answered

Can I make this line of code smaller?

XBest=[2, 3, 4]; XBest(isempty(XBest)) = 1e8; XBest XAest = []; XAest(isempty(XAest)) = 1e8; XAest

Can I make this line of code smaller?

XBest=[2, 3, 4]; XBest(isempty(XBest)) = 1e8; XBest XAest = []; XAest(isempty(XAest)) = 1e8; XAest

7 månader ago | 1

| accepted

Answered

Why the 2nd code does not behave like the 1st code?

This is how I would modified the code to execute for any M r N dimensions: clear clc u = [10 20 30 40]; b = u * (1+0.5*randn...

Why the 2nd code does not behave like the 1st code?

This is how I would modified the code to execute for any M r N dimensions: clear clc u = [10 20 30 40]; b = u * (1+0.5*randn...

7 månader ago | 1

| accepted

Answered

Unable to perform assignment because brace indexing is not supported for variables of this type

You need to provide more context. For example, this is OK. run = cell(10,1); R = 244:300; Y = 1:300; run{1} = Y(1:R(1)) ru...

Unable to perform assignment because brace indexing is not supported for variables of this type

You need to provide more context. For example, this is OK. run = cell(10,1); R = 244:300; Y = 1:300; run{1} = Y(1:R(1)) ru...

7 månader ago | 0

Answered

How to get subset of data from given thresholds?

Did you try this approach? DNS = dat(:,9); NZE = dat(:,10); PER = dat(:,11); % 1. sub = dat(NZE>0.25,:); %2. sub = da...

How to get subset of data from given thresholds?

Did you try this approach? DNS = dat(:,9); NZE = dat(:,10); PER = dat(:,11); % 1. sub = dat(NZE>0.25,:); %2. sub = da...

7 månader ago | 0

| accepted

Answered

How to read a specially structured data file with different structures

I would suggest the follwoing solution: A = readtable('test.5p', 'ReadVariableNames', false, 'FileType', 'text'); nr_rows = si...

How to read a specially structured data file with different structures

I would suggest the follwoing solution: A = readtable('test.5p', 'ReadVariableNames', false, 'FileType', 'text'); nr_rows = si...

7 månader ago | 1

| accepted

Answered

Why the 2nd code does not behave like the 1st code?

It is because in the function "myfunAskMathworks.m" you have function handles defined. So, you are sending the function handle a...

Why the 2nd code does not behave like the 1st code?

It is because in the function "myfunAskMathworks.m" you have function handles defined. So, you are sending the function handle a...

7 månader ago | 1

Answered

How to read a specially structured data file

I would also like to suggest my naive and inefficient approach: A = dlmread('testfile5p.txt'); nr_rows = size(A,1); A2 = zero...

How to read a specially structured data file

I would also like to suggest my naive and inefficient approach: A = dlmread('testfile5p.txt'); nr_rows = size(A,1); A2 = zero...

7 månader ago | 1