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Apply 'rotatefactors' on the observations to represent them in the new factorial design (PCA)
Hi all, I guess, that it is an easy issue, but I can not figure out how to apply rotatefactors on the SCORES matrix resulting...
mehr als 7 Jahre vor | 1 Antwort | 0
1
AntwortGelöst
Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...
fast 8 Jahre vor
Gelöst
Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...
fast 8 Jahre vor
Gelöst
Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...
fast 8 Jahre vor
Gelöst
Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...
fast 8 Jahre vor
Gelöst
Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...
fast 8 Jahre vor
Gelöst
Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...
fast 8 Jahre vor
Gelöst
Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...
fast 8 Jahre vor
Gelöst
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...
fast 8 Jahre vor
Gelöst
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...
fast 8 Jahre vor
Gelöst
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...
fast 8 Jahre vor
Gelöst
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...
fast 8 Jahre vor
Gelöst
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...
fast 8 Jahre vor
Gelöst
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 ...
fast 8 Jahre vor
Gelöst
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...
fast 8 Jahre vor
Frage
Structure from shaperead: Logical indexing gives a 'one row shift'
Dear all, I am facing a issue regarding logical indexing of elements in a structure loaded from a 'shaperead' call. Indeed, ...
mehr als 8 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How can I access two subset of a string in a table field (to convert into two datetime fields) ?
Hello, I can not manage to find a vectorized way to deal with a long table string to datetime conversion. I explain: I ...
fast 9 Jahre vor | 1 Antwort | 0
1
AntwortGelöst
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 ...
mehr als 10 Jahre vor
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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...
mehr als 10 Jahre vor
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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.
mehr als 10 Jahre vor
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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 ...
mehr als 10 Jahre vor
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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:...
mehr als 10 Jahre vor
Gelöst
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...
mehr als 10 Jahre vor
