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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

7年以上前

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Retrieve data from several folders and structures
If I understand correctly you have data files in different folders and you want to take subset of that data and reorganize it in...

7年以上前 | 0

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

7年以上前

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

7年以上前

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How can I use pushbuttons in GUI to categorize a "like" or "dislike" of a image
Here is a very simple away around this... in the directory where you have the images try the following code: im = imageDatast...

7年以上前 | 0

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How to get environment password in script/function
The MathWorks does have a Database toolbox which does exactly what you are describing. That being said you probably would have t...

7年以上前 | 0

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i want to download MATLAB Arduino support package. How i can ???
This should help: https://nl.mathworks.com/matlabcentral/fileexchange/47522?download=true I got this link from: https://nl.ma...

7年以上前 | 0

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Read the output line by line
Hi, Not sure if I understand the problem correctly... are you trying to given an image with text get the text into MATLAB? If ...

7年以上前 | 0

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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 ...

7年以上前

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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...

7年以上前

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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 ...

7年以上前

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Is my wife right?
Regardless of input, output the string 'yes'.

7年以上前

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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...

7年以上前

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

7年以上前

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

7年以上前

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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 ...

7年以上前

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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...

7年以上前

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Creating the Snake game using a classdef
Try adding drawnow after the plot.

7年以上前 | 1

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How can I get the maximum line of multiple graphs, starting from different x-values?
Maybe I miss understood but you could use min and max to achieve this: t = 0:.1:2*pi; for i = 1:4, y(i,:) = sin(t*i*2*pi);end;...

7年以上前 | 0

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How to fix number of elements in for loop?
There are couple of things here however the first is to get your code working: q= 0.2; E = 200*10^8; a= -6:6; n=numel(a); ...

7年以上前 | 1

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Write to txt, delimited by char(10)
x = ['a' char(10) 'b']; fp = fopen('test.txt','w'); fwrite(fp,x); fclose(fp); I am on a Mac and using R2018b. That being sai...

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color of line plot with marker problem
There are a couple of ways to solve this (I am using R2018b): plot(x,y,'-s','MarkerSize',10,'Color','red',... 'MarkerEdgeCol...

7年以上前 | 0

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Checking/Counting values in a given Timewindow
Hi JamJan, If I understand correctly you have a matrix with 2 rows, the first row shows times, and the second 1. You are aski...

7年以上前 | 1

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Can I write the output of a 'summary' command of a 'table'-variable to a variable ?
I believe as of R2017b you can do the following: a = summary(tab) This will return a structure with the information that s...

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How i Calculate the average number of even numbers in an array?
Hi Tomer, I am not sure if I understand your question correctly. In MATLAB to calculate the average you would use the func...

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How to copy and paste a single row in an excel file to another excel file?
I am using R2018b, and there are a couple of ways of solving this. I like the following: ds = spreadsheetDatastore(pwd,'Range...

7年以上前 | 0

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Image plot I am not able to create
I am using R2018b: a=readtable('dte2.txt'); plot(a.x_coordinate,a.y_coordinate,'.') Does this help?

7年以上前 | 0

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Add more zeros
Find code that adds one 0 to each sequence of 0 in a string (composed with only 0 or 1). For example: '1010' -> '100100' ...

7年以上前

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Reverse the Words (not letters) of a String
*Description* Change the words of a string such that the words appear in reverse order. You may assume that the string is a n...

7年以上前

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Space Saver
Remove all characters that are below a space in ASCII value.

7年以上前