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Hyeokjin Jho

Last seen: Today
19 total contributions since 2018

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Index in position 2 exceeds array bounds
Since n = 4, for(j=1:1:n-1) will make j from 1 to 3. However pos is 4x2 matrix. When j is 3, pos(1,j) refers outside of the mat...

2 days ago | 0

What do the pixelIdxlist mean?
Let's say your image input for bwconncomp is BW. i.e. CC = bwconncomp(BW); Then CC.pixelIdxList{i} is linear indices of i-th i...

3 days ago | 0

Visualization of data in 3 dimention.
F=5:1:50; % total 46 value w=2*pi*F; S=0:1:100;%total 101 value [wM,SM]=meshgrid(w,S); P = SM./wM; surf(w,S,P) You can c...

3 days ago | 1

| accepted

comparing pixels in 3x3 block
Assuming your matrix is A % collect green pixels query_right = A(2:end-1,3:end); query_left = A(2:end-1,1:end-2); query_dow...

2 months ago | 1

| accepted

Submitted

surferror
draws surf plot with errorbar

How do I add error bars in the Z-axis to a surface plot?
https://kr.mathworks.com/matlabcentral/fileexchange/73699-surferror try this

2 months ago | 0

Question

Collapsing preallocated memory of sparse matrix
I used sparse matrix for some calculation, and I roughly know how many nnz will be stored. So I preallocated a slightly larger m...

1 year ago | 1 answer | 1

1

Submitted

nargout_class
nargout for methods, and inherited methods

Question

Is there any way to set function (or method) output as comma separated list?
If we have an array of struct, like this: s(1).a = 1; s(2).a = 2; s(3).a = 3; and then if we get the field of this...

1 year ago | 1 answer | 0

1

Need help with my function (Basic Question)
Putting |message| inside |if| statement is better. And also I found some mistake in the inequality signs. if 0<= pH && pH...

1 year ago | 0

Matrix Manipulation of a specific column
Assuming |Data| is the matrix that containing your data, threshold = 10; for i = size(Data,2) pickedColumn = ...

1 year ago | 0

Question

How to get all possible rearrange permutations of array with repeated elements?
I have some DNA sequences to rearrange 'ACTCACATCTGGTTCCTCTA' and I need all possible permutations of this (4 'A', 7 'T'...

1 year ago | 1 answer | 0

1

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

2 years ago

Solved

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

2 years ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

2 years ago

Solved

Given a and b, return the sum a+b in c.

2 years ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

2 years ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

2 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

2 years ago