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Dyuman Joshi


Last seen: Today Active since 2012

Mechanical Engineer IITG'20 Time zone - GMT +5.30 (IST)

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

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Answered
How to reorder columns and array elements based on an array?
"1) reorder the columns in my original 1000x20 dataset based on this array, so that e.g. the species that was 14th in the origin...

16 hours ago | 0

Answered
How to make a sequence of time and the corresponding data from a data set where time is not provided sequentially
Sort the time data, and use the indices obtained (2nd output of sort) to get the corresponding velocity and density values, and ...

16 hours ago | 0

Answered
How to set the length of minortick? The minortick seems to change with the length setting of the tick.
"... what does the latter indicate?" From the documentation page of Axes properties - Tick mark length, specified as a two-el...

1 day ago | 0

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Answered
How can I multiply a row vector with each of two column vectors?
t = [1 2]; s = [(1:3)',(4:6)']; out = kron(s,t)

2 days ago | 0

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Answered
how to plot table to line graph with dots ?
Convert the data to double data type, and use indexing to plot the data (Reference for syntax - https://in.mathworks.com/help/ma...

2 days ago | 1

Answered
Plotting several plots of respective ranges from an excel file into one single plot
opts = detectImportOptions('tempDataTrollhFlygpl.xlsx', ... 'Range', 'A10', 'VariableNamingRule','preserve'); opts = setva...

2 days ago | 1

Answered
I am starting with Matlab online. can I use Stoichiometry Tools?
I assume you are referring to this particular function provided in this FEX submission - https://in.mathworks.com/matlabcentral/...

3 days ago | 0

Answered
Changing names of excl files automatically and converting into cell array
If you want to rename the file when the file name is a number only, then the condition should be - if ~isnan(num)

3 days ago | 0

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Answered
vectorized operations on symbolic functions
Better to use a function handle - x = rand(500,3); y = @(x) x(:,1).^3/3 + x(:,2).^2/2 - x(:,3); out1 = y(x) For more info...

3 days ago | 0

Answered
How to filter a table with a date field
You can directly compare dates and use logical indexing to get the corresponding data - %date to compare dt = datetime(2014, ...

3 days ago | 0

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Answered
How can I convert indices into a binary matrix?
ItemSet = readmatrix('Test.txt','NumHeaderLines',0) tic s = size(ItemSet); %corresponding row values row = repelem((1:s(1)...

4 days ago | 1

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Answered
If command does not work correctly.
Welcome to the world of floating point numbers, where not all numbers can be represented exactly in binary form. 0.234 is not e...

4 days ago | 1

Answered
how to plot two m.file in one plot
Call both the PDEs in a new script/function and plot accordingly.

4 days ago | 0

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Answered
Why do I receive "To use the software again, Renew Software Maintenance Service" message, since I have academic license?
It would be best to contact your university IT admin for this.

4 days ago | 1

Answered
Using only ‘stepfun’ in MATLAB, please perform mathematical operations to produce the following output
stepfun is obsolete now, and there is no documentation available for it. The only reference you will get is using help - help...

4 days ago | 0

Answered
How to convert one column from string to datetime
If you are using R2018b or a later version, you can use convertvars - %Random data for example ABC = table(rand(5,1), {'2014-...

4 days ago | 0

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Answered
Why does this function not work for decimals?
The formula you have used is incorrect. Refer to this webpage for (the taylor) expansion of arc tan for different values - http...

4 days ago | 0

Answered
Extract a specific range of rows from an excel file using opts = detectImportOptions(filename)
Specify the data range to be read using the 'Range' option - opts = detectImportOptions('tempDataTrollhFlygpl.xlsx', ... ...

5 days ago | 0

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Answered
Dealing data with text and numerical in .txt file
%display the contents of the file type data.txt %read the file fID = fopen('data.txt') %read the data in the given format - ...

5 days ago | 0

Answered
User input in a struct
Use the variable name in the call to struct() i.e. without the apostrophes. MotorType = input('Enter IDM for induction motor ...

6 days ago | 0

Answered
find関数について
Welcome to the world of floating point numbers, where not all numbers can be represented exactly in binary form. See this threa...

6 days ago | 3

Answered
How can I calculate the grouped data?
Dynamically naming variables is not a good programming practice - TUTORIAL: Why Variables Should Not Be Named Dynamically (eval)...

6 days ago | 0

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Answered
Finding intersecting points in the Lissajous scan pattern
There are several options available in FEX - https://in.mathworks.com/matlabcentral/fileexchange/11837-fast-and-robust-curve-i...

6 days ago | 2

Answered
Retracting the time-tags from the histcounts
If you are working with R2019a or a later version, use readmatrix and writematrix. Otherwise, use writetable D=readmatrix('time...

6 days ago | 1

Answered
Zeroing matrix elements outside of a certain range.
A simple approach via indexing - data = [1;2;3;4;5].*ones(5,2).*[0.5,0.4] out = [data(1:4,1) data(2:5,2)]

6 days ago | 0

Answered
Algorythm for Average of excel data
data = readtable('S1IA.csv') %define bins to distribute bins in idx = 0:0.5:0.5*ceil(max(data.Time)/0.5); %Get the mean of ...

6 days ago | 0

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Answered
Converting entries from array to double from an entire column in a matrix for plotting
Change the options for reading the data via detectImportOptions and use column numbers to plot - opts = detectImportOptions('t...

7 days ago | 0

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Answered
文字列から指定数だけ削除
A = ["aaa 01" "bbb 02" "aaa 02" "bbb 03" "ccc 04"] %Number of characters from end to delete n = 3; B = extractBefore(A,...

8 days ago | 0

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Answered
Convert Julian Date + Time in GMT to calendar day + Time in EST
Note that I have changed the inputs YEAR and JDDD to numeric values as they are easier to work with - I changed the name to all...

8 days ago | 3

Answered
Extracting a variable from a series of files contained inside a folder
Refer to this documentation page for importing and exporting multiple files - https://in.mathworks.com/help/matlab/import_export...

8 days ago | 0

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