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Dyuman Joshi


Last seen: Today Con actividad desde 2012

Mechanical Engineer IITG Time zone - GMT +5.30 (IST)

Programming Languages:
Python, MATLAB
Spoken Languages:
English, Hindi
Pronouns:
He/him
Professional Interests:
Fluid Dynamics, Aerospace Engineering, Computational Fluid Dynamics (CFD), Hydraulics and Pneumatics

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Respondida
インデックスが配列要素数を超えています。インデックスは 0 を超えてはなりません。
When kq is 0, the equation becomes 1==0, which is obviously not true, thus there is no solution for it. For that iteration, q1 i...

alrededor de 10 horas hace | 1

Respondida
How can I change the decimal separator when exporting to Excel?
Try - T = readmatrix('filename.format', 'DecimalSeparator',',');

alrededor de 12 horas hace | 0

Respondida
How to get Bin Edges at specific Value point (Maximum value) in histogram.
load('Data.mat') H = histogram(DATA) %Get the index of the max value alongside [HMAX, idx] = max(H.Values,[],"all") %USe the...

alrededor de 12 horas hace | 0

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Respondida
Change specific colour in an image
The image is actually an indexed image with a colormap. Use the map to convert it to an rgb image via ind2rgb - %Read the file...

alrededor de 14 horas hace | 0

Respondida
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; ...

1 día hace | 1

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Respondida
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...

1 día hace | 0

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

2 días hace | 0

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Respondida
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...

2 días hace | 0

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Respondida
How can I fix the warning and the error in parfor?
Why are you using parfor for this? Simply use a for loop - a = linspace(1,100,100); for i=1:10 for j=1:10 k = ...

3 días hace | 0

Respondida
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 ...

5 días hace | 0

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Respondida
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 ...

5 días hace | 0

Respondida
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...

6 días hace | 1

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

6 días hace | 0

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Respondida
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...

7 días hace | 0

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Respondida
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...

8 días hace | 0

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Respondida
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('...

10 días hace | 0

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Respondida
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...

10 días hace | 2

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Respondida
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 - ...

11 días hace | 0

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

11 días hace | 0

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

13 días hace | 0

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Respondida
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...

13 días hace | 0

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Respondida
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...

20 días hace | 0

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Respondida
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...

20 días hace | 0

Respondida
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...

21 días hace | 2

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Respondida
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...

23 días hace | 1

Respondida
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...

23 días hace | 0

Respondida
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...

23 días hace | 0

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

24 días hace | 2

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Respondida
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...

26 días hace | 1

Respondida
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...

26 días hace | 0

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