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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 1

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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

5年以上前 | 1

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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年以上前 | 1

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前

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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年以上前

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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年以上前

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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年以上前

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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年以上前

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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年以上前

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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年以上前