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Feeds
Z score to p values
Two-tailed p value should actually be 2 * (1 - normcdf(z)). normcdf(z) gives the area under curve on the left side of z. This i...
environ 2 ans il y a | 1
A résolu
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...
environ 3 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 3 ans il y a
A résolu
Pattern matching
Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...
environ 3 ans il y a
A résolu
Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...
environ 3 ans il y a
A résolu
Indexed Probability Table
This question was inspired by a Stack Overflow question forwarded to me by Matt Simoneau. Given a vector x, make an indexed pro...
environ 3 ans il y a
A résolu
Clean the List of Names
Given a list of names in a cell array, remove any duplications that result from different capitalizations of the same string. So...
environ 3 ans il y a
A résolu
De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...
environ 3 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 3 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...
environ 3 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 ...
environ 3 ans il y a
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 3 ans il y a
A résolu
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...
environ 3 ans il y a
A 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...
environ 3 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 ...
environ 3 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...
environ 3 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:...
environ 3 ans il y a
Question
How to change the shape/size of a HeatMap/clustergram?
Hi, I'm working on a data with a 8 by 53 matrix, and I'm trying to generate a heatmap using the HeatMap function. The figure tur...
plus de 4 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to find maximum frequency of a 2D image after fourier transform?
Hi, I have a 2D grayscale image I, and I've done fourier transform using fft, with center shifted (fftshift). I want to find th...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
In Ode15s, how do I break the time span into smaller intervals and call the solver twice, so that the integration proceeds faster?
Hi, can anyone explain these lines from the Matlab website to me? and I understand how splitting the total time span in...
plus de 6 ans il y a | 1 réponse | 0
