# Ajay Kumar

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MATLAB enthusiast.

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**Content Feed**

Problems of convert decimal number to a string

You can define precision property in num2str. For example: num = [110.00001, 10.00000000000000001,99.01]'; your_ans = num2str(...

mer än 3 år ago | 0

appdesigner code view ANNOYANCE!

In the code view window -> editor tab -> View section find 'Enable app coding alerts' and uncheck that.

mer än 3 år ago | 0

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Multiple outputs by a loop

Param=regexp(fileread('parameters.txt'), '\r?\n', 'split') .'; for i=1:size() fid = fopen( ['output',i,'.txt'], 'w'); fprint...

nästan 4 år ago | 0

debugging within built in matlab function

right click on polyfit in editor window and select open "polyfit" You can see the complete code behind polyfit and you can plac...

nästan 4 år ago | 0

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saving outputs from a loop

%matlab code for euler's method clear all clc f=@(x,y)(x^2)/(1+y^2)+2*y; x0=input('Enter initial value of x or x(0): ');%you...

nästan 4 år ago | 1

| accepted

how to write a axis in hours format

Again it resembles the same question you asked, which already has the answer. https://www.mathworks.com/matlabcentral/answers/5...

nästan 4 år ago | 0

how to change axis to text format

Use xticklables for eg: x = linspace(0,12); y = x.^2; plot(x,y) xticks([0:1:12]) xticklabels({'','Jan','Feb','Mar','Apr','M...

nästan 4 år ago | 0

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Calculate average (daily, monthly, seasonally) for long time series data

You can ignore NaN values using property omitnan https://www.mathworks.com/help/matlab/ref/mean.html#buql3m_

nästan 4 år ago | 0

How to convert matrix to CSV file

for i = 1:length(sequences) csvwrite(['hmdb51_org/bend',num2str(i),'.csv'], sequences{i}); end

nästan 4 år ago | 0

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How do I write a loop which creates a random number and adds the previous values

res_sum = 0; for i=1:23; a(i) = randn(1); res_sum = res_sum + a(i); end

nästan 4 år ago | 1

How to repeat input prompt for each data set?

You are replacing the m and a everytime in the for loop. try this u=menu('What is your unit system?','SI','English'); d=input(...

nästan 4 år ago | 0

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How do I remove a set of repeated values in a x by 2 matrix?

unique(matrix)

nästan 4 år ago | 0

calculat the percentage of the red curve in the blue one?

Do you mean exactly same values in red and blue lines? You can do: same_values = find(blueline==redline); % gives same samples ...

nästan 4 år ago | 0

How to solve a matrix quadratic equation?

Kminusw2 = K - w^2; mymatrix = Kminusw2.*M; myfinalanswer = det(mymatrix);

ungefär 4 år ago | 0

Plotting in App designer

x = 1:10; y = sin(x); plot(app.UIAxes,x,y);

ungefär 4 år ago | 4

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Adding a second x-axis to the top

https://uk.mathworks.com/help/matlab/creating_plots/graph-with-multiple-x-axes-and-y-axes.html

ungefär 4 år ago | 0

Previous Value of Numeric Edit Field

Try to save the Previous value in a temporary variable. For eg: temp = app.NumericEditField.Value; if error app.NumericE...

ungefär 4 år ago | 0

How to stop the program if an array is empty?

Handle the exception using try catch blocks signal1 = [1,2,3,4,5,6]; signal2 = [7,8,9,10,11,12]; signal3 = [13,14,15,16,17,1...

ungefär 4 år ago | 0

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save data in for loops

Yes, You are trying to assign 2 matrices of different size. Try this: coordinate= zeros(41,1); for a=1:21 X = snakes{1,a}...

ungefär 4 år ago | 0

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figure doesn't appear in new window

Are you sure? because Figure 2 window lies exactly on Figure 1 window. Just check the matlab windows. If you want to shift the ...

ungefär 4 år ago | 1

How to say remove "-1" from the end of a string if exists?

play with positions. For eg: S = 'sectioned-1'; S = S(1:end-2) For an array, write this in a simple for loop.

ungefär 4 år ago | 0

Inserting a row and moving other rows down

A = [A(1,:);[1,1,1,1];A(2,:);A(3,:)]

ungefär 4 år ago | 1

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How to modify the text visibility in a Gui that created using App Designer

What is the exact name of the component? I would suggest you to rename it if its only Label. For example, if you rename it to C...

ungefär 4 år ago | 0

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matlab app designer ,UI axes how to disable XTick label ?

I think you want to disable Xlabel String. Search for Xlabel.String property in the property window and also make that empty.

ungefär 4 år ago | 0

The plot is exceeding the boundaries of the box in a figure.

Did you turn off the Clipping ? Try this after plot: ax = gca; % get the current axis ax.Clipping = 'on'; %...

ungefär 4 år ago | 0

Linking two dropdown menus to a pushbutton in a GUI

In the ButtonPushed callback, you can directly assign the values of dropdown menu. For eg: Dropdown.Value = "Your Option in dro...

ungefär 4 år ago | 0

How can I change the value of some elements within a matrix

B =[0, 3, 6]; C= 1./B; C(isinf(C))=0

ungefär 4 år ago | 0

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Generation of plot using data set

T = xlsread('process.xlsx'); names = {'Memory'; 'Battery Backup'; 'Processing Capability'; 'Screen Size'; 'Camera'}; for i = 1...

ungefär 4 år ago | 0

how to install matlab on windows 10

If you are a student, then see if your university/college has a Campus-Wide Access. For checking go to: https://uk.mathworks.com...

ungefär 4 år ago | 0

How can I implement code online?

You can use MATLAB compiler to make your GUI/App as a standalone application or web application. Please read: https://uk.mathw...

ungefär 4 år ago | 0

| accepted