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xlabel do not appear in plot
Call the plot() command first and then define the labels and legend - syms x s u1 = stepfun(x,0); f1 = x.*exp(-3*x).*u1; ...

約2ヶ月 前 | 1

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Why does my ode45 return a solution with the first values as zero despite I supplying non-zero initial conditions?
"Why does my ode45 return a solution with the first values as zero despite I supplying non-zero initial conditions?" Because yo...

約2ヶ月 前 | 0

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How to make this type of variation plot in MATLAB
You are looking for errorbar.

約2ヶ月 前 | 0

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Error using mesh - Z must be a matrix, not a scalar or vector, using mesh command
The difference between min(x1) and max(x1) is not 100, thus the vector x1fit generated via colon() is just min(x1). Consequently...

約2ヶ月 前 | 0

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Getting an error message when I use 'triangle()' function.
That help is for a Stateflow operator in SIMULINK (as mentioned in the 1st line), not for a function in MATLAB. help triangle ...

約2ヶ月 前 | 0

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I could not display all the legends related to the plotted bars
You get a single legend entry because there is only a single graphical object. If you want a separate legend for each bar, you ...

約2ヶ月 前 | 0

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Finding an angle in a trigonometric function using 2 equations
As you are solving for beta, you have to define beta as a symbolic variable. Also, I have reduced the step size in x, as the va...

約2ヶ月 前 | 1

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error using preallocation for table using size option in R2023b
Use single quotation marks around the VariableTypes arguement instead of double quotation marks - % v ...

約2ヶ月 前 | 0

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converting 3d matrix into a cell array
@AT_HYZ, change the dimensions and use the above transformation - abc = rand(1001,259,259); %Shift dimensions Mymatrix = s...

約2ヶ月 前 | 0

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downgrade From matlab r2022b update 8 to r2022b update 5
https://in.mathworks.com/matlabcentral/answers/473278-how-can-i-roll-back-a-matlab-update https://in.mathworks.com/matlabcentra...

約2ヶ月 前 | 0

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Vector sliding average over different number of points
Here's a vectorized method - %number of points in each block Ns = [4 2 2 1 3 1 1 2 3 1 1 2 1 2 3 1]; %sum of these points = 3...

2ヶ月 前 | 0

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Return the last time in a datetime column containing NaT
Your data is already a column, using 1 and end as indices on it will provide scalars (see the edit above). ReadSS = readtable('...

2ヶ月 前 | 0

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How to split a 2xN matrix into multiple 2x2 matrices?
%Assuming N is a multiple of 2 y = randi(10, 2, 16) %Reshaping into 2x2 blocks y = reshape(y, 2, 2, []) z = y(:,:,1); for k...

2ヶ月 前 | 2

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How can I replace data on the axis to become u horizontal and y vertical?
Use - plot(u1,y,'-',u2,y,'--',u3,y,'-.',u4,y,':','LineWidth',2) Note the syntax for plotting x and y data using plot is - ...

2ヶ月 前 | 0

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Not able to plot a particular relation.
Remove all the "syms" call. They are not required.

2ヶ月 前 | 1

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How to export script to text file ?
export() does not support writing data into files. Use writematrix instead - a = "good"; b = "morning"; c = "babynumber"; ...

2ヶ月 前 | 0

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Having issues with plotting and supposedly there is a size problem?
(I assume that you have written this code for an assignment, which requires the variable x to be of size [1 200], which should b...

2ヶ月 前 | 0

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Plot can no longer recognize my variable
Because there is no such variable named yModel before that plot() is called. You have made a typo, it should be yB_Model. Al...

2ヶ月 前 | 0

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how to generate random number
randi only generates integers. Use rand instead. rand() generates numbers in the range (0,1). Get the desired range by modifyin...

2ヶ月 前 | 0

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Trouble with handling values in anti-diagonal of a square matrix
1 - Preallocate using ones() instead of zeros() and remove the else part. 2 - Update the condition for checking the anti-diagon...

2ヶ月 前 | 2

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Plotting a function inside of another function with no outputs
Firstly, do not use built-in functions as names for variables (or scripts for that matter). You are using plot as a variable nam...

3ヶ月 前 | 1

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How can I integrate by using bessel function
You need to provide the integrand as a function handle, see here - https://in.mathworks.com/help/matlab/ref/integral.html#btbbkt...

3ヶ月 前 | 0

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how to get multiple values of multiple columns from a single column?
Use logical indexing - Find Array Elements That Meet a Condition, for columns 2-100 (Assuming the value 40 occurs same number o...

3ヶ月 前 | 0

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Making loop for a function 'xlsread'
Use readmatrix instead of the deprecated xlsread(). q = dir('Data/*.csv'); nfiles = numel(filenames); for k=1:nfiles %...

3ヶ月 前 | 2

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Solve is not providing correct solution
When you use vpa on symbolic numbers, you lose precision. When you convert the symbolic numbers to double precision values usi...

3ヶ月 前 | 1

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the matrix only works till days= 16 then when the days=17 or bigger the output is 0 on all the values in the matrix
In the default display format (i.e. short), the numbers are displayed with 4 digits after the decimal. Thus when the differenc...

3ヶ月 前 | 0

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How to interpolate only NaN values with one hole?
fillmissing is a better fit here - %Note that the data you have provided is not valid %I have added another element to make i...

3ヶ月 前 | 2

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How to vectorize this nested for loop?
%Original Approach b=0; min1 = 1; max1 = 1; pair = []; for n = -min1:max1 for m = -min1:max1 if n+m...

3ヶ月 前 | 1

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Can't quite figure out why my syms is giving me an error
The error is not with the symbolic part of your code, but how your code is arranged/structured. If any function(s) is(are) defi...

3ヶ月 前 | 1

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Finding array index for a given array element does not work all the time
Welcome to the world of floating point numbers, where not all numbers can be represented exactly in binary form. See this threa...

3ヶ月 前 | 0

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