Answered
Unable to select seed points manually in region growing algorithm
getpts will return decimal values, so you will have to use round. I= rgb2gray((imread('TM25.jpg'))); figure,imshow(I) [x,y]=g...

5 years ago | 0

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Answered
Out of memory. The likely cause is an infinite recursion within the program.
Inside the function trans you are calling the function trans. Without any logic to stop this, this will result in an infinite lo...

5 years ago | 0

Answered
Is there a way to call a part of a function using an index?
Reposting as answer: For the reasons set out in the answer by Steven (and the subsequent comments), numbering your variables in...

5 years ago | 0

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Answered
check for a pair in power hand
The feasibility of this depends on the size of the arrays involved. If your vectors are too large, the implicit expansion will c...

5 years ago | 0

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Answered
R^2 meaning in linear mixed-effects model
The information you seek should be available on the Wikipedia page for the R². This is one of the most basic goodness-of-fit pa...

5 years ago | 0

Answered
Dividing the string data
You can split this with a regular expression. str='68753-9.990e+000 -9.900e-002 -9.990e-003-3.330e+000'; RE=['[+-]?',... %s...

5 years ago | 1

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Answered
Matrix is singular to working precision. Meshgrid
You aren't using elementwise operations anywhere. You should replace every * by .* and every / by ./, that way you will not be d...

5 years ago | 0

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Answered
How can i process the elements of a vector in this way
A good first start would be to split your vector into a cell array. I suspect you will need diff, find, sign, and mat2cell. The...

5 years ago | 0

Answered
How to create a matrice from selected rows from other matrices
You overwrote the entire variable. See the edits I made to your code. file_lat_1_fmt = 'October_01_2014_surface_lat_%02.0f.mat'...

5 years ago | 0

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Answered
Changing the color of stacking bar plot with many groups
students = rand(28,10); year = 2020: 2029; h=bar(year, students, 'stacked') ; legend('A', 'B', 'C', 'D', 'E', 'F', 'G',...

5 years ago | 0

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Answered
Filling a white space in plot with another color
It is not possible in a direct way, but you can do things with patch to get a similar result: t=linspace(0,5*pi,1000); y=abs(s...

5 years ago | 0

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Answered
How to make a linear regression from an excel file
You can use the unique function and a loop. (edited to include a custom function to extract a specific strain value) data=xlsr...

5 years ago | 0

Answered
Draw line between two points if x distance is longer than...
You can easily find the indices of such locations (assuming x and y are sorted along x): x=[linspace(-16,-8,200) linspace(-5.5,...

5 years ago | 0

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Answered
training model neural network
This sounds like an mlint warning. The source would be reduceDataset being false, which would cause the entire if block to be sk...

5 years ago | 0

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Answered
Unable to delete variable
removevars will only work on tables, not on structs. Use rmfield to remove a field from a struct.

5 years ago | 1

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Answered
How to reverse a series of variable assignments?
I tend to use deal to make it more or less compact: [var,othervar,somevar]=deal(setting1,othersetting,somesetting); Now if I w...

5 years ago | 1

Answered
different outcome cellfun(@isempty,..) vs cellfun('isempty',...)
The reason is partly documented: "If you specify a function name rather than a function handle cellfun does not call any overlo...

5 years ago | 0

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Answered
Latex interpreter in MATLAB Answers
The LaTeX editor is slightly hidden: it is labeled with the sigma and generally referred to in the Answers documentation as 'equ...

5 years ago | 0

Answered
How to graph discrete equation: y(n) = y(n-1) + 1 for 1000 samples
I would do something like this: %create a vector of the correct size y=NaN(1000,1); % by using NaN we should notice it if we s...

5 years ago | 0

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Answered
How do I make a lower triangular matrix from a column vector?
The functions you should be looking for are tril and triu. You should be using triu, because you seem to want to fill your array...

5 years ago | 3

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How to implement 2 vectors in a for-loop to get a matrix?
[A,B]=ndgrid(a,b); Then a single for-loop will do

5 years ago | 0

Answered
학교 정보 변경하는 방법
Even if sometimes staff members look on this forum and post from time to time, the help on this forum is mostly provided by peop...

5 years ago | 0

Answered
Error "too many input arguments"
You misread the error message slightly. The source of your issue is here: disp ('code2 =', code2) The disp function only allow...

5 years ago | 0

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Solved

Draw a 'Z'.
Given _n_ as input, generate a n-by-n matrix like 'Z' by _0_ and _1_ . Example: n=5 ans= [1 1 1 1 1 0 0 0 1 ...

5 years ago

Solved

Draw 'O' !
Given n as input, generate a n-by-n matrix 'O' using 0 and 1 . example: n=4 ans= [1 1 1 1 1 0 0 1 ...

5 years ago

Solved

Draw 'I'
Given n as input, draw a n-by-n matrix 'I' using 0 and 1. example: n=3 ans= [0 1 0 0 1 0 0 1 0] n=...

5 years ago

Solved

Draw 'F'
Draw a x-by-x matrix 'F' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 1 1 0 0 0 0 ...

5 years ago

Solved

Draw 'D'.
Draw a x-by-x matrix 'D' using 0 and 1. example: x=4 ans= [1 1 1 0 1 0 0 1 1 0 0 1 1 1 1 0]

5 years ago

Solved

Draw a 'N'!
Given n as input, generate a n-by-n matrix 'N' using 0 and 1 . Example: n=5 ans= [1 0 0 0 1 1 1 0 0 1 1 0 ...

5 years ago

Solved

Draw 'C'.
Given x as input, generate a x-by-x matrix 'C' using 0 and 1. example: x=4 ans= [0 1 1 1 1 0 0 0 ...

5 years ago