Community Profile

# Dyuman Joshi

Last seen: Today Aktiv seit 2012

Followers: 2   Following: 4

Mechanical Engineer IITG-20 | Moderator - MATLAB Cody since Jan 2021 | Time zone - IST (GMT +5.30)

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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Beantwortet

I scrolled across the image - jie is already defined as a struct (possibly in the code before this particular lines), thus you c...

etwa 15 Stunden vor | 0

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Beantwortet
How can I plot graph with lines of different color each using for loop?
You are over-writing the figure in each iteration, thus you only get the plot for a single iteration (i.e. the last one). Call ...

etwa 17 Stunden vor | 0

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How to create random sequence?
Use randn to generate the sequences and modify it accordingly - avg = 817e-9; sd = 10e-9; N = 50; seq = avg + sd*randn(1,...

etwa 18 Stunden vor | 0

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I need to make a function for compound interest using for
In case you want the final output - format shortg money=1000; for k=1:10 money=money*1.08; end money In case you w...

3 Tage vor | 0

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How to extract data from a 3D Array?
Use logical indexing - %Sample data p = 5; q = 6; r = 4; y = rand(p,q,r)-1; y(:, :, [2 r+1]) = zeros(p,q,2) %Check i...

4 Tage vor | 1

Beantwortet
for構文
That is because you are overwriting the files in each iteration of the for loop. Pre-allocate the output to assign data to it a...

12 Tage vor | 2

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Beantwortet
'입력 인수가 부족합니다' 이 오류를 해결하고 싶어요.
I have made some changes to your code, please check the code below and refer to the comments for information - syms('x') %%...

13 Tage vor | 0

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Versions de Matlab compatibles Windows 11 et versions non recommandées pour Windows 11
MATLAB was introduced in Windows 11 from R2021b onwards. So, any versions before it i.e. R2021a or earlier, won't work on it. ...

14 Tage vor | 0

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Combining excel files with unequal rows
Try outerjoin - %Data from the images attached for example %Use readtable() to read the data as tables directly Name = ["Ada...

14 Tage vor | 0

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Beantwortet

You can use this syntax of zeros() to preallocate the data as a complex array -https://in.mathworks.com/help/matlab/ref/zeros.ht...

15 Tage vor | 1

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How to find the frequency of individual elements in a matrix?
MATLAB has a in-built function for it - histogram, which does both the operations in single command - s = load('micro2d (2).ma...

18 Tage vor | 0

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Beantwortet
Assumption on another symbolic Variable affecting a previous assumption
Because assume over-writes assumptions. From the Tips section in the documentation page - "assume removes any assumptions pr...

19 Tage vor | 2

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Beantwortet
MATLAB Grader: What should my assessment return when it determines a student solution is correct or incorrect?
You can use assert to check a condition (whether the title contains a particular text or not) and throw a (custom defined) error...

19 Tage vor | 1

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You get the wrong value because the order of inputs is not correct. By default, matlabFunction uses alphabetical order for the ...

19 Tage vor | 0

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convert a .mat to excel file
(Assuming single data set in each file) Read the data from the files and use writematrix to save the data in excel files accord...

20 Tage vor | 0

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Matlab cannot recognize variable
"Why is Lambda unrecognized here?" Because the while loop is not initiated, as the condition is not satisfied. As the while lo...

21 Tage vor | 1

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Beantwortet
cell配列をスカラー配列に直すにはどうすればいいですか？
I am not sure why you are using linspace here. You can use cellfun to calculate mean of each cell element - avg = cellfun(@me...

21 Tage vor | 1

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Matlab is giving different answers for the same calculation
That's because the value of D_h is not 0.0019. The value stored is not the same as value displayed. rho = 916; %kg/m^3 ...

24 Tage vor | 2

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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...

25 Tage vor | 1

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

26 Tage vor | 0

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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...

26 Tage vor | 0

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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...

26 Tage vor | 0

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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; ...

26 Tage vor | 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...

27 Tage vor | 0

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

28 Tage vor | 0

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Beantwortet
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...

28 Tage vor | 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 ...

30 Tage vor | 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 ...

30 Tage vor | 0

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Beantwortet
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...

etwa ein Monat vor | 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 ...

etwa ein Monat vor | 0

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