5.682 total contributions since 2014

Suspensa Vix Via Fit

Answered

could anyone help me to solve the issue with respect to the code

"What i actually need is idx should be different for each run" The easiest way is to define them before the loop, e.g.: A = 1:...

could anyone help me to solve the issue with respect to the code

"What i actually need is idx should be different for each run" The easiest way is to define them before the loop, e.g.: A = 1:...

ongeveer 3 uur ago | 0

Answered

Extracting specific rows from multiple data files to store as variables

"....and store in such a way that allows me to keep track of which stems from which file." That is easy using the structure ret...

Extracting specific rows from multiple data files to store as variables

"....and store in such a way that allows me to keep track of which stems from which file." That is easy using the structure ret...

ongeveer 16 uur ago | 1

| accepted

Answered

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

You re-defined the variable name for the loop iterator variable: dots.nDots = 100; %^^^ variable name. for dots = 1:dots.nDot...

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

You re-defined the variable name for the loop iterator variable: dots.nDots = 100; %^^^ variable name. for dots = 1:dots.nDot...

ongeveer 17 uur ago | 0

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Answered

how do you get the max y value in an fplot?

If you actually want to find the numerical solution (and not just whatever fplot happens to have calculated) then you can trivia...

how do you get the max y value in an fplot?

If you actually want to find the numerical solution (and not just whatever fplot happens to have calculated) then you can trivia...

ongeveer 18 uur ago | 0

Answered

how to extract data from the fixed-width-field format using fscanf or textscan

A simple solution based on regeprep and sscanf. Before the file-reading loop: vec = [8,16,16,16,8,8]; rgx = sprintf('(.{%d})',...

how to extract data from the fixed-width-field format using fscanf or textscan

A simple solution based on regeprep and sscanf. Before the file-reading loop: vec = [8,16,16,16,8,8]; rgx = sprintf('(.{%d})',...

ongeveer 23 uur ago | 0

Answered

Generating vectors of length N with only -1s and 1s.

>> M = 5; >> N = 19; >> randi(0:1,M,N)*2-1 ans = -1 1 -1 1 -1 -1 1 -1 1 -1 -1 1 -1 1 1 -1 -1 1 ...

Generating vectors of length N with only -1s and 1s.

>> M = 5; >> N = 19; >> randi(0:1,M,N)*2-1 ans = -1 1 -1 1 -1 -1 1 -1 1 -1 -1 1 -1 1 1 -1 -1 1 ...

1 dag ago | 0

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Answered

Given a matrix A, create the matrix B whose elements are the neighbor sumr for A

Much simpler to just use conv2: >> A = [1 2 3 4; 5 6 7 8; 9 10 11 12; 13 14 15 16] A = 1 2 3 4 5 6 7 ...

Given a matrix A, create the matrix B whose elements are the neighbor sumr for A

Much simpler to just use conv2: >> A = [1 2 3 4; 5 6 7 8; 9 10 11 12; 13 14 15 16] A = 1 2 3 4 5 6 7 ...

1 dag ago | 1

Answered

finding number sequences in a vector and set them to the adjacent values

>> V = [ 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0] V = 0 0 0 0 0 0 0 0...

finding number sequences in a vector and set them to the adjacent values

>> V = [ 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0] V = 0 0 0 0 0 0 0 0...

1 dag ago | 1

Answered

How can i compute the derivative of a signal in an instant of time/sample?

Use gradient.

How can i compute the derivative of a signal in an instant of time/sample?

Use gradient.

3 dagen ago | 0

Answered

getting Complex double in matlab while excel solves it

(1-exp(-(WL-0.26053)./0.15994)).^2.28411 % % ^^^^ ^ positive values (around 5) %^^^ ...

getting Complex double in matlab while excel solves it

(1-exp(-(WL-0.26053)./0.15994)).^2.28411 % % ^^^^ ^ positive values (around 5) %^^^ ...

3 dagen ago | 0

| accepted

Answered

1) I need a code to determine the intersection points, I have tried '==' is not working, also I would like to know if it is possible to make the grid line look like a graph sheet i.e using Xtick and Ytick

Use fzero to find the intersection of two functions. Method one: functions >> F1 = @(x)1.5*x-1; >> F2 = @(x)0.3*x; >> X = 0:...

1) I need a code to determine the intersection points, I have tried '==' is not working, also I would like to know if it is possible to make the grid line look like a graph sheet i.e using Xtick and Ytick

Use fzero to find the intersection of two functions. Method one: functions >> F1 = @(x)1.5*x-1; >> F2 = @(x)0.3*x; >> X = 0:...

3 dagen ago | 3

Answered

How to access induvidual elements in a string

The simplest and most efficient solution is to use sscanf: >> S = '23hrs 45min'; >> V = sscanf(S,'%fhrs%fmin') V = 23 ...

How to access induvidual elements in a string

The simplest and most efficient solution is to use sscanf: >> S = '23hrs 45min'; >> V = sscanf(S,'%fhrs%fmin') V = 23 ...

3 dagen ago | 0

Answered

Using a binary matrix as an index to select values from another matrix

>> X = [1,0;3.5,1;0,6]; >> p = [13,12;11,19;22,23]; >> p.*(X==1) ans = 13 0 0 19 0 0

Using a binary matrix as an index to select values from another matrix

>> X = [1,0;3.5,1;0,6]; >> p = [13,12;11,19;22,23]; >> p.*(X==1) ans = 13 0 0 19 0 0

4 dagen ago | 0

Answered

Executing .m files function in R2015b is not working properly

Ugh, invalid filenames and anti-pattern dynamic variable names... it seems that your task was explicitly designed to torture int...

Executing .m files function in R2015b is not working properly

Ugh, invalid filenames and anti-pattern dynamic variable names... it seems that your task was explicitly designed to torture int...

4 dagen ago | 0

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Answered

Check if any elements of cell array are equal ?

Matching: >> a{1}=[1,1,0]; >> a{2}=[9,9,9,9]; >> a{3}=[1,1,0]; >> a{4}=[]; >> N = numel(a); >> [X,Y] = ndgrid(1:N); >> Z ...

Check if any elements of cell array are equal ?

Matching: >> a{1}=[1,1,0]; >> a{2}=[9,9,9,9]; >> a{3}=[1,1,0]; >> a{4}=[]; >> N = numel(a); >> [X,Y] = ndgrid(1:N); >> Z ...

4 dagen ago | 2

| accepted

Answered

Code for Multiple Matrix Multiplication

>> T=randi(9,4,4,3); % fake data >> T(:,:,1)*T(:,:,2)*T(:,:,3) % your approach ans = 2359 1398 2072 2154 1788 ...

Code for Multiple Matrix Multiplication

>> T=randi(9,4,4,3); % fake data >> T(:,:,1)*T(:,:,2)*T(:,:,3) % your approach ans = 2359 1398 2072 2154 1788 ...

4 dagen ago | 0

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Answered

how xor is used between two no.? or which command ?

I suspect that you actually want to be using bitxor (and possibly also specify the classes): >> bitxor(mod(176+233,256),142) a...

how xor is used between two no.? or which command ?

I suspect that you actually want to be using bitxor (and possibly also specify the classes): >> bitxor(mod(176+233,256),142) a...

4 dagen ago | 1

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Answered

How to create legend from cell array?

Simply using one cell array: legend(itm{2}(1:4)) or using your approach of separate input arguments (character vectors): lege...

How to create legend from cell array?

Simply using one cell array: legend(itm{2}(1:4)) or using your approach of separate input arguments (character vectors): lege...

4 dagen ago | 1

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Answered

Extracting data from multiple structures in a .mat file

Do NOT load directly in the workspace. If you do that, then you will force yourself into writing slow, complex, buggy code by t...

Extracting data from multiple structures in a .mat file

Do NOT load directly in the workspace. If you do that, then you will force yourself into writing slow, complex, buggy code by t...

5 dagen ago | 1

| accepted

Answered

Create structure path from string and cell array

I already answered this in your last question: https://www.mathworks.com/matlabcentral/answers/466887-extracting-data-from-mult...

Create structure path from string and cell array

I already answered this in your last question: https://www.mathworks.com/matlabcentral/answers/466887-extracting-data-from-mult...

5 dagen ago | 0

Answered

how can I generate random decimal numbers in a specific decimal range?

v = [-2.96706,2.96706]; v(1)+diff(v)*rand(1,6)

how can I generate random decimal numbers in a specific decimal range?

v = [-2.96706,2.96706]; v(1)+diff(v)*rand(1,6)

5 dagen ago | 0

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Answered

How to delete numbers from cell?

Simpler with regexprep: >> D = regexprep(C,'^\S+\s*','') D = 'SPEED MEASURED 1 [rpm]' 'MOTOR SPEED [rpm]' 'MOTO...

How to delete numbers from cell?

Simpler with regexprep: >> D = regexprep(C,'^\S+\s*','') D = 'SPEED MEASURED 1 [rpm]' 'MOTOR SPEED [rpm]' 'MOTO...

5 dagen ago | 2

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Answered

To assign to or create a variable in a table, the number of rows must match the height of the table

You wrote a literal string instead of concatenating the variable data onto the end of the character vector. fullfile('C:\Users\...

To assign to or create a variable in a table, the number of rows must match the height of the table

You wrote a literal string instead of concatenating the variable data onto the end of the character vector. fullfile('C:\Users\...

5 dagen ago | 0

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Answered

Matlab is giving conflicting results, please help.

"...but Matlab still says they aren't equal?" Because they aren't equal. This is very easy to check (you already used one meth...

Matlab is giving conflicting results, please help.

"...but Matlab still says they aren't equal?" Because they aren't equal. This is very easy to check (you already used one meth...

5 dagen ago | 0

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Answered

How to read specific lines from a text file and store them in a matrix?

This code should work regardless of the number of rows or columns: opt = {'Headerlines',3, 'CollectOutput',true}; fid = fopen(...

How to read specific lines from a text file and store them in a matrix?

This code should work regardless of the number of rows or columns: opt = {'Headerlines',3, 'CollectOutput',true}; fid = fopen(...

6 dagen ago | 1

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Answered

How do I add an additional column to a cell array based on existing values in another column?

>> x = {'x1',1';'x2',2;'x3',1} x = 'x1' [1] 'x2' [2] 'x3' [1] >> x(:,3) = {0}; >> x([x{:,2}]==1,3) =...

How do I add an additional column to a cell array based on existing values in another column?

>> x = {'x1',1';'x2',2;'x3',1} x = 'x1' [1] 'x2' [2] 'x3' [1] >> x(:,3) = {0}; >> x([x{:,2}]==1,3) =...

6 dagen ago | 0

Answered

Why doesn't legend distinguish colors?

The problem occurs on this line: plot(t,ca,'r') Because t is a vector (with 501 elements) and ca is a scalar, then you are tel...

Why doesn't legend distinguish colors?

The problem occurs on this line: plot(t,ca,'r') Because t is a vector (with 501 elements) and ca is a scalar, then you are tel...

6 dagen ago | 0

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Answered

Building the Fibonacci using recursive

I doubt that a recursive function is a very efficient approach for this task, but here is one anyway: function v = myfib(n,v) ...

Building the Fibonacci using recursive

I doubt that a recursive function is a very efficient approach for this task, but here is one anyway: function v = myfib(n,v) ...

6 dagen ago | 0

Answered

How do I multiply an integer with a single value from the matrix?

You need to convert the character vector (contained in the output) into numeric, e.g.: C = inputdlg(...); % C is a cell array o...

How do I multiply an integer with a single value from the matrix?

You need to convert the character vector (contained in the output) into numeric, e.g.: C = inputdlg(...); % C is a cell array o...

7 dagen ago | 0

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Answered

When using the eval function, MATLAB doesn't recognize " , " as an ASCII character, rendering it useless

Evil eval strikes again! This is a very good example of how using eval results in slow, complex code that is buggy and hard to ...

When using the eval function, MATLAB doesn't recognize " , " as an ASCII character, rendering it useless

Evil eval strikes again! This is a very good example of how using eval results in slow, complex code that is buggy and hard to ...

7 dagen ago | 2