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Artik Crazy
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A résolu
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...
plus de 11 ans il y a
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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...
plus de 11 ans il y a
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Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...
plus de 11 ans il y a
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Elapsed Time
Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...
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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0
plus de 11 ans il y a
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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...
plus de 11 ans il y a
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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...
plus de 11 ans il y a
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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...
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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...
plus de 11 ans il y a
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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...
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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
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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. Example...
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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...
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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...
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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 ...
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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...
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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...
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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.
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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 ...
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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...
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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 ...
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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:...
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Remove or replace trees from a TreeBagger ensemble
I figured that the solution is quite simple. TreeBagger ensemble is actually a collection of regular trees, so I went to a Tre...
plus de 12 ans il y a | 0
Question
Remove or replace trees from a TreeBagger ensemble
Hello, There is this method TreeBagger.combine that can combine two independently trained TreeBagger classifiers. The prob...
plus de 12 ans il y a | 2 réponses | 0
2
réponsesDetecting particular Line(EDGE) in the total image
Try hough transform as in this example: <http://www.mathworks.com/help/toolbox/images/ref/hough.html>
presque 13 ans il y a | 0
Best way to build a database-like variable?
Hi, I find a dataset array to be quite useful in such tasks. It can be used as matrix and as a structure in the same time, and ...
presque 13 ans il y a | 0
Question
Reading data from a UCAC star catalogue
Hello, I wonder if someone already tried to get data from UCAC3 catalogue from within Matlab and has may be some scripts he/she...
presque 13 ans il y a | 1 réponse | 0
0
réponseHelp using getmcruserdata and setmcruserdata with JAVA
Hi, Try to create two functions in Matlab that contain getmcruserdata and setmcruserdata: function SetMCRUserData (Valu...
presque 13 ans il y a | 0
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