Sam Roberts
XMW Consulting
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XMW Consulting provides consultancy services in the areas of data mining and statistical analysis, specializing in the development of technical algorithms and applications with MATLAB®. http://www.xmwconsulting.co.uk http://www.xmwconsulting.co.uk/backslashblog http://www.linkedin.com/in/samroberts http://www.twitter.com/sllroberts Professional Interests: Data Mining | Statistics | MATLAB | Consultancy
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Feeds
A résolu
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...
environ 12 ans il y a
A résolu
Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0
environ 12 ans il y a
A résolu
The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".
environ 12 ans il y a
A résolu
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...
environ 12 ans il y a
A résolu
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...
environ 12 ans il y a
A résolu
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...
environ 12 ans il y a
A résolu
Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
environ 12 ans il y a
Question
Force doc command to open a specified reference HTML page
Say I've written a class in a package, called mypackage.myclass. I've written my own HTML documentation for the package and ...
environ 12 ans il y a | 1 réponse | 3
0
réponseA résolu
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...
plus de 12 ans il y a
A résolu
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...
plus de 12 ans il y a
A résolu
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 ...
plus de 12 ans il y a
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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...
plus de 12 ans il y a
A résolu
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 ...
plus de 12 ans il y a
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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...
plus de 12 ans il y a
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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.
plus de 12 ans il y a
A résolu
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 ...
plus de 12 ans il y a
A résolu
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...
plus de 12 ans il y a
A résolu
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:...
plus de 12 ans il y a
Question
Defining additional infix operators in MATLAB
Is there a way to define additional infix operators in MATLAB? Specifically, I'd like to define two infix operators "->" and ...
plus de 12 ans il y a | 1 réponse | 0
1
réponsechanging color while using 'hist' in a bar-plot
Try: h = bar(y,'hist'); set(h,'FaceColor','r','EdgeColor','r'); If you take a look at the <http://www.mathworks.co.uk/help...
plus de 12 ans il y a | 2
| A accepté
Problems starting Excel server
I ran into a similar issue recently. Are you working with the Click-to-Run edition of Microsoft Office? The click-to-run edit...
plus de 12 ans il y a | 3