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Why do I get Parse error ?
The left parenthesis is supposed to be after the '@' symbol - f = @(x) x +2 f(3) The general syntax is name_of_function ...

1 year ago | 0

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Answered
how to write sqrtroot power 7 ?
Use power, .^ and define a Function Handle - g = @(x) sqrt(14.*x - 7).^7 g(2) g(1/2) g([1/2 2]) I suggest you take the f...

1 year ago | 2

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Answered
matlab에서 적분을 하고 싶습니다.
Use fplot - syms x; expr = 150/(0.06009*x^2+9.607); F = int(expr) %call fplot for the expression F, for x values in the ran...

1 year ago | 1

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Not auto change sec(x) to 1/cos(x)?
Unfortunately, that is not possible. The symbolic engine directly evaluates the function sec() to 1/cos() (and csc() to 1/sin()...

1 year ago | 0

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Answered
Separating data to 3 different groups according to specific range of number in a variable
Note - NaN values are not included in the grouping load('SNR_GPS.mat') data = SNR_GPS(~isnan(SNR_GPS)) k = discretize(data, [...

1 year ago | 0

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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...

1 year ago | 0

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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 ...

1 year ago | 1

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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 year 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)

1 year ago | 0

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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...

1 year ago | 1

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

1 year ago | 1

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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/...

1 year ago | 0

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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)

1 year 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...

1 year ago | 0

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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, ...

1 year ago | 0

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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)...

1 year ago | 2

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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...

1 year ago | 1

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

1 year ago | 0

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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.

1 year ago | 1

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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...

1 year ago | 0

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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-...

1 year 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...

1 year ago | 0

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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', ... ...

1 year 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 - ...

1 year ago | 0

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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...

1 year ago | 3

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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)...

1 year 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...

1 year ago | 2

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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...

1 year ago | 1

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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)]

1 year 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 ...

1 year ago | 0

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