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How can I perform matrix operations on certain rows?
What do you mean by 'certain'? Is there any condition that determines the selection of years. Then, you could use a logical arra...
oltre 8 anni fa | 0
I have video with 10 frames. I want the video depth. In other words stack 10 frames and get the thickness of the stack as a whole. Can anybody help me?
I'm not sure what you mean by depth/thickness but if you stack N frames of size (HxWxC) into a video (4d array of size HxWxCxN),...
oltre 8 anni fa | 0
Domanda
detect checkerboard pattern (non-solid dark colour)
I am trying to detect the checkerboard points in the image below. If that's not possible, I would like to split the image into 6...
oltre 8 anni fa | 2 risposte | 0
2
risposteDomanda
How to read in a csv file with uneven columns?
My csv file has two different types of rows: Sep 30, 2016 15:45:09.486686950 BST 00:00:00:aa:00:df ARP 44 S...
circa 9 anni fa | 1 risposta | 0
1
rispostaRisolto
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...
oltre 10 anni fa
how to fit gaussian model and plot it
You can do the following: 1) Estimate the mean and standard deviation using _normfit_ 2) Calculate the probability estimat...
oltre 10 anni fa | 2
| accettato
Risolto
Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...
oltre 10 anni fa
How to find standard deviation of a RGB image?
std2 calculates the standard deviation of an RGB image. Look up <http://uk.mathworks.com/help/images/image-mean-standard-devi...
oltre 10 anni fa | 0
Domanda
how to override a diary command if another diary already exists?
I usually create a log file at the start of each session by adding it to startup.m. Now, I'm trying to run a piece of code that...
oltre 11 anni fa | 1 risposta | 0
1
rispostaRisolto
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 ...
oltre 11 anni fa
Risolto
Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...
oltre 11 anni fa
sort vector elements under given restrictions
You can create a logical array (same length as v) with 1's for the positions you want (say, 3 and 5) and 0's for the rest and us...
oltre 11 anni fa | 0
| accettato
Domanda
matlab hangs when help window is opened
I have MATLAB R2014a 64-bit mac. Whenever I try to open the help window (either by clicking on Help in any of the toolbars or by...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
multidimensional array to column vector with different dimensional order?
Say I have two arrays: if true % code count = 1; for m = 1:3 for n = 1:3 for k = 1:3 A(count) = count; count = c...
oltre 11 anni fa | 1 risposta | 0
1
rispostaDomanda
how do I draw the cluster boundaries in a scatter plot?
<</matlabcentral/answers/uploaded_files/9042/example.jpg>> I have a scatter plot of three clusters. How can I represent them ...
oltre 11 anni fa | 2 risposte | 1
2
risposteRisolto
Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
oltre 12 anni fa
Risolto
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 ...
oltre 12 anni fa
Risolto
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 ...
oltre 12 anni fa
Risolto
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
oltre 12 anni fa
Risolto
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:...
oltre 12 anni fa
Domanda
8 neighbours of a pixel after converting to 1D array
Hi Is there a simple way to access the 8 neighbours of a pixel x(i,j) given by x(i-1,j-1), x(i-1,j), x(i-1,j+1), x(i,j-1), .....
oltre 12 anni fa | 3 risposte | 2
