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Mara


Last seen: 9 months ago Active since 2020

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  • Introduction to MATLAB Master
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Answered
Random sampling and removing data
Hey Sooraj, it is not all clear to me whether you want to choose entire rows/columns of your matrix or completely random sets o...

10 months ago | 1

Answered
How to create axis with perfect square ticks
yticks((1:50).^2) if you just want to change the labels you can use yticklabels((1:50).^2)

10 months ago | 0

Answered
How to input signal to skip numbers and generate data?
A = [0 0 0 0 0 1 1 1 0 0 0 0 1 0 1 1 0 0 1 1 1 1 1 0 0 0 0]; n = 2; B = zeros (1,length(A)); count = 0; ...

10 months ago | 1

| accepted

Answered
If you follow this code, you will see a graph, but when you hit enter, line 45 keeps saying "'l' is an unrecognizable function or variable." But even though for I= 2:k is given, what is the problem?? ?
Your loop variable is a an upper case i, but in your loop you use a lower case l, which look identical in some fonts.

1 year ago | 0

Answered
Comparing strings of different lengths.
So is your question how to shorten your code? Maybe try this statement if strcmp(filename1, filename2) % Whatever you want...

1 year ago | 0

Answered
How to extract corresponding values of x-axis based y-axis values.
maybe use ismember: idx = ismember(y, [5,6,74,5,67]) xvalues = x(idx) P.S. sorry for the editing, I now read your problem c...

1 year ago | 0

Answered
Plotting multiple functions, while showing only parts of them
Hello, you can plot only to the maximal y-value by finding the index of it in your vector of y-values. When you plot x and y, y...

1 year ago | 0

Solved


Getting the indices from a matrice
Getting the indices from a matrice. Inspired by Problem 645. Getting the indices from a vector by the great Doug Hull. Given a...

1 year ago

Solved


Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

1 year ago

Solved


Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

1 year ago

Solved


Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

1 year ago

Solved


Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

1 year ago

Solved


Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

1 year ago

Solved


Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

1 year ago

Solved


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

1 year ago

Solved


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

1 year ago

Solved


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

1 year ago

Solved


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...

1 year ago

Solved


Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

1 year 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]; ...

1 year ago

Solved


Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

1 year ago

Solved


Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

1 year ago

Solved


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...

1 year ago

Solved


Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

1 year 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...

1 year ago

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

1 year ago

Solved


Return area of square
Side of square=input=a Area=output=b

1 year ago

Solved


Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

1 year ago

Solved


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

1 year ago

Answered
File-loop, for loop,importing excel data
%Read each CSV file, change the text data to numeric and work with it clear; clc; dirroot='C:\Documents\Excel\'; for L=1:2...

1 year ago | 0

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