Communication through MATLAB is always better than arguing.

Question

Using least squares to find the x intercept.

I have a set of data points which represent the IV characteristics of a diode. I'm confused on how to get the threshold voltage ...

23 days ago | 1 answer | 0

Question

Symbolic differentiation with respect to first derivative

Is it possible to make a derivative of an equation with respective to the first derivative . Illustration: syms x(t) eq...

25 days ago | 1 answer | 0

Answered

Error using fsurf (too many functions) but success using ezsurf

Just vectorize the function and use function handles. To learn the proper usage of the functions that get you into a dilemma is ...

Error using fsurf (too many functions) but success using ezsurf

Just vectorize the function and use function handles. To learn the proper usage of the functions that get you into a dilemma is ...

2 months ago | 0

| accepted

Answered

Error: Unbalanced or unexpected parenthesis or bracket

I think name is variable, it's simply (there is no need for eval): x = name(:,1); y = name(:,2); z = name(:,3);

Error: Unbalanced or unexpected parenthesis or bracket

I think name is variable, it's simply (there is no need for eval): x = name(:,1); y = name(:,2); z = name(:,3);

2 months ago | 0

| accepted

Question

How to read this file in MATLAB?

I am having trouble reading the datas.

2 months ago | 2 answers | 0

Answered

Indexing a Matrix with a for loop

for ii = 1:numel(z) % don't name variables i or j (because they are interpreted as imaginary numbers by default)

Indexing a Matrix with a for loop

for ii = 1:numel(z) % don't name variables i or j (because they are interpreted as imaginary numbers by default)

3 months ago | 1

| accepted

Answered

Delete element of an array on the basis of other arrays

U = T(Y>SETT)

Delete element of an array on the basis of other arrays

U = T(Y>SETT)

3 months ago | 0

| accepted

Answered

How to enter this function

https://www.mathworks.com/help/matlab/learn_matlab/desktop.html

How to enter this function

https://www.mathworks.com/help/matlab/learn_matlab/desktop.html

4 months ago | 0

Answered

Help on text and colours

https://in.mathworks.com/help/matlab/ref/matlab.graphics.chart.primitive.line-properties.html https://in.mathworks.com/help...

Help on text and colours

https://in.mathworks.com/help/matlab/ref/matlab.graphics.chart.primitive.line-properties.html https://in.mathworks.com/help...

4 months ago | 0

Answered

How can I combine all the column vectors in to one column vector

Don’t name variables , if you would have all the vectors as cells it would have been much easier. X =[x1,x2...,xn] Xmean...

How can I combine all the column vectors in to one column vector

Don’t name variables , if you would have all the vectors as cells it would have been much easier. X =[x1,x2...,xn] Xmean...

4 months ago | 0

| accepted

Answered

how to delete cells in a cell array, such that it has the same length as one of my other arrays

Y(1:numel(X))

how to delete cells in a cell array, such that it has the same length as one of my other arrays

Y(1:numel(X))

4 months ago | 0

| accepted

Answered

Change value of states "active" to 1 and "rest" to -1

stats.state(ismember(stats.state,'rest'),:) = '-1'; stats.state(ismember(stats.state,'active'),:)= '1'

Change value of states "active" to 1 and "rest" to -1

stats.state(ismember(stats.state,'rest'),:) = '-1'; stats.state(ismember(stats.state,'active'),:)= '1'

4 months ago | 0

| accepted

Answered

How to Create Vector Function File

I don’t have any suggestions on how to improve it for as for your confusion regarding the error message: In your first file E...

How to Create Vector Function File

I don’t have any suggestions on how to improve it for as for your confusion regarding the error message: In your first file E...

4 months ago | 0

Answered

foor loop add function values to an empty vector

How to use for loop to store values MATLAB ? [Google search]

foor loop add function values to an empty vector

How to use for loop to store values MATLAB ? [Google search]

4 months ago | 0

Answered

Index in position 1 exceeds array bounds (must not exceed 1)

clear all % you're probably shadowing the inbuilt function input()\fprintf() %or clear input fprintf

Index in position 1 exceeds array bounds (must not exceed 1)

clear all % you're probably shadowing the inbuilt function input()\fprintf() %or clear input fprintf

4 months ago | 0

Answered

How to implement a formula involving several elements of the same vector?

https://in.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html - for better understanding peak_resolution...

How to implement a formula involving several elements of the same vector?

https://in.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html - for better understanding peak_resolution...

4 months ago | 1

Answered

Symbolic Toolbox Integration Error

You probably have a variable named int, clear that workspace using: clear int %or clear all

Symbolic Toolbox Integration Error

You probably have a variable named int, clear that workspace using: clear int %or clear all

4 months ago | 1

| accepted

Answered

How to get the index of a value in a table?

index = find(TABLE{:,:}==specific_value) %or [~,index] = ismember(specific_value,TABLE{:,:}) If you're dealing with decimals ...

How to get the index of a value in a table?

index = find(TABLE{:,:}==specific_value) %or [~,index] = ismember(specific_value,TABLE{:,:}) If you're dealing with decimals ...

4 months ago | 0

| accepted

Answered

Count in a loop

N = 100; % no loops needed p_x= -1+(1+1)*rand(N,1); p_y= -1+(1+1)*rand(N,1); p = sqrt(p_x.^2 + p_y.^2); fprintf('N...

Count in a loop

N = 100; % no loops needed p_x= -1+(1+1)*rand(N,1); p_y= -1+(1+1)*rand(N,1); p = sqrt(p_x.^2 + p_y.^2); fprintf('N...

4 months ago | 1

Answered

How to use cellstr() without losing whitespace character?

Wanted = num2cell(your_char_array,2)

How to use cellstr() without losing whitespace character?

Wanted = num2cell(your_char_array,2)

4 months ago | 1

Answered

how to plot cell array

I don’t why you’re saying multidimensional cell array all I see in the picture is a cell array containing character array. ...

how to plot cell array

I don’t why you’re saying multidimensional cell array all I see in the picture is a cell array containing character array. ...

4 months ago | 0

| accepted

Answered

Store values from a for loop into a matrix

RARmat = zeros(65, 3) for ii = 1:65 RARatio = AUC/RA; disp(RARatio) % RAR Matrix RARmat(ii, :) ...

Store values from a for loop into a matrix

RARmat = zeros(65, 3) for ii = 1:65 RARatio = AUC/RA; disp(RARatio) % RAR Matrix RARmat(ii, :) ...

4 months ago | 0

| accepted

Answered

Creating a MatLab code to convert numerical grades into letter grades.

You should loop through mn and save the results as a cell array in a variable which is preallocated before loop using indexing. ...

Creating a MatLab code to convert numerical grades into letter grades.

You should loop through mn and save the results as a cell array in a variable which is preallocated before loop using indexing. ...

4 months ago | 0

Answered

How can I deleate or replace with a 0 all the Nan, Inf anf -Inf values in a time series from the biggining to the end?

a(isinf(a)|isnan(a))=0 % replaces with zero

How can I deleate or replace with a 0 all the Nan, Inf anf -Inf values in a time series from the biggining to the end?

a(isinf(a)|isnan(a))=0 % replaces with zero

4 months ago | 0

Answered

Showing error Matrix dimensions must agree

theta =0:2*pi:100; r=linspace(0,100,numel(theta)); % theta and r should have same length/ or either one be a scalar z=2*(r-4*...

Showing error Matrix dimensions must agree

theta =0:2*pi:100; r=linspace(0,100,numel(theta)); % theta and r should have same length/ or either one be a scalar z=2*(r-4*...

4 months ago | 0

Answered

how to find how many elements are there in a cell of an array?

No_of_elements = cellfun(@numel, cells)

how to find how many elements are there in a cell of an array?

No_of_elements = cellfun(@numel, cells)

4 months ago | 0

| accepted

Answered

Assign values of a result to an input variable.

That’s not a good idea, see https://in.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dyn...

Assign values of a result to an input variable.

That’s not a good idea, see https://in.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dyn...

4 months ago | 0

| accepted

Answered

I keep getting a 'parse error' at '='

Change arctan() to *atan()* and y=0 to *y==0*. doc if

I keep getting a 'parse error' at '='

Change arctan() to *atan()* and y=0 to *y==0*. doc if

4 months ago | 0

| accepted