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~~~~~~~ WAVE ~~~~~~~~~

|The WAVE generator| Once upon a time there was a river. 'Sum' was passing by the river. He saw the water of the river that w...

3 mesi ago

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Draw 'B'

Draw a x-by-x matrix 'B' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 0 1 0 0 0 1 ...

3 mesi ago

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Draw a 'N'!

Given n as input, generate a n-by-n matrix 'N' using 0 and 1 . Example: n=5 ans= [1 0 0 0 1 1 1 0 0 1 1 0 ...

3 mesi ago

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Draw 'C'.

Given x as input, generate a x-by-x matrix 'C' using 0 and 1. example: x=4 ans= [0 1 1 1 1 0 0 0 ...

3 mesi ago

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Draw 'H'

Draw a x-by-x matrix 'H' using 1 and 0. (x is odd and bigger than 2) Example: x=5 ans= [1 0 0 0 1 1 0 0 0 1 ...

3 mesi ago

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Draw 'J'

Given n as input, generate a n-by-n matrix 'J' using 0 and 1 . Example: n=5 ans= [0 0 0 0 1 0 0 0 0 1 0 0 ...

3 mesi ago

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Draw a 'X'!

Given n as input Draw a 'X' in a n-by-n matrix. example: n=3 y=[1 0 1 0 1 0 1 0 1] n=4 y=[1 0 0...

3 mesi ago

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Draw 'E'

Draw a x-by-x matrix 'E' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 1 1 0 0 0 0 ...

3 mesi ago

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Natural numbers in string form

Create a cell array of strings containing the first n natural numbers. _Slightly_ harder than it seems like it should be. Ex...

3 mesi ago

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Fix the last element of a cell array

Note: this is lifted directly from <http://www.mathworks.com/matlabcentral/answers/82825-puzzler-for-a-monday Puzzler for a Mond...

3 mesi ago

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String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values

<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

3 mesi ago

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Cell Counting: How Many Draws?

You are given a cell array containing information about a number of soccer games. Each cell contains one of the following: * ...

3 mesi ago

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Remove element(s) from cell array

You can easily remove an element (or a column in any dimension) from a normal matrix, but assigning that value (or range) empty....

3 mesi ago

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Convert a Cell Array into an Array

Given a square cell array: x = {'01', '56'; '234', '789'}; return a single character array: y = '0123456789'

3 mesi ago

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Split a string into chunks of specified length

Given a string and a vector of integers, break the string into chunks whose lengths are given by the elements of the vector. Ex...

3 mesi ago

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Convert a numerical matrix into a cell array of strings

Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

3 mesi ago

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Create a cell array out of a struct

Create a cell array out of a (single) struct with the fieldname in the first column and the value in the second column: in: ...

3 mesi ago

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First non-zero element in each column

For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero ...

3 mesi ago

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Specific Element Count

Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

3 mesi ago

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Find the largest value in the 3D matrix

Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...

3 mesi ago

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Return unique values without sorting

If the input vector A is [42 1 1], the output value B must be the unique values [42 1] The *values of B are in the s...

3 mesi ago

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"Low : High - Low : High - Turn around " -- Create a subindices vector

Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...

3 mesi ago

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Return elements unique to either input

Given two numeric inputs a and b, return a row vector that contains the numbers found in only a or only b, but not both. For ex...

3 mesi ago

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middleAsColumn: Return all but first and last element as a column vector

Given input A, return all but the first and last elements, arranged as a column vector. (I.e., all dimensions after the first s...

3 mesi ago

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Matrix indexing with two vectors of indices

Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).

3 mesi ago

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Getting logical indexes

This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...

3 mesi ago

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Put two time series onto the same time basis

Use interpolation to align two time series onto the same time vector. This is a problem that comes up in <http://www.mathwork...

3 mesi ago

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Reindex a vector

You are given two vectors of equal length. Vector N has numeric values (no Inf or NaN) while vector IDX has integers. Place th...

3 mesi ago

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Remove the two elements next to NaN value

The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...

3 mesi ago

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Joining Ranges

You are given a n-by-2 matrix. Each row represents a numeric range, e.g. x = [0 5; 10 3; 20 15; 16 19; 25 25] contains...

3 mesi ago