Working in mathematical biology.

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Minimum of each diagonal

The well-known <http://www.mathworks.com/help/matlab/ref/min.html min> function can operate along either the rows or the columns...

2 days ago

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Maximum of each diagonal

The well-known <http://www.mathworks.com/help/matlab/ref/max.html max> function can operate along either the rows or the columns...

2 days ago

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Back to basics 20 - singleton dimensions

Covering some basic topics I haven't seen elsewhere on Cody. Remove the singleton dimensions from the input variable (e.g. if...

3 days ago

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Back to basics 13 - Input variables

Covering some basic topics I haven't seen elsewhere on Cody. Return as a string the name of the input variable to the functio...

3 days ago

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Free passes for everyone!

_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): Once a mont...

3 days ago

Answered

Brace indexing is not supported for variables of this type

I think Walter was onto the right thing in his comment. new_precipitation is of type 'double' and so doesn't support brace (i.e....

Brace indexing is not supported for variables of this type

I think Walter was onto the right thing in his comment. new_precipitation is of type 'double' and so doesn't support brace (i.e....

3 days ago | 1

Answered

Adjust z-axis location for a pcolor() plot

Okay, so just in case anybody has been looking here anticipating an answer and been disappointed. I have managed to figure this ...

Adjust z-axis location for a pcolor() plot

Okay, so just in case anybody has been looking here anticipating an answer and been disappointed. I have managed to figure this ...

5 days ago | 0

| accepted

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Create an index-powered vector

Given a input vector x, return y as index-powered vector as shown below. Example x = [2 3 6 9] then y should be [...

5 days ago

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Oh Zero Zero Zero!!!

Hello all, So you have to find the largest section of zeros in a vector and then find the length of those zeros and there start...

6 days ago

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The sliding puzzle: 3D

This is an extension of <https://www.mathworks.com/matlabcentral/cody/problems/42842 problem 42842>. In this case, the puzzle is...

6 days ago

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Decimation - Optimized for speed

This problem is similar to http://www.mathworks.com/matlabcentral/cody/problems/1092-decimation, only this time the score will b...

6 days ago

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Count consecutive 0's in between values of 1

So you have some vector that contains 1's and 0's, and the goal is to return a vector that gives the number of 0's between each ...

6 days ago

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Find last zero for each column

Given a numeric array of arbitrary size, return the row index of the last zero for each column. If a column contains all nonzero...

6 days ago

Answered

How to solve Iteration Equation ?

You just need to choose how many iterations you want to do, for example: n = 1; You then need an initial value to feed into th...

How to solve Iteration Equation ?

You just need to choose how many iterations you want to do, for example: n = 1; You then need an initial value to feed into th...

8 days ago | 0

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Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)

For a row vector: V=[7 1 2 -3] there is one sign change (from 2 to -3). So, the function you write must return N=1. F...

9 days ago

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Implement a bubble sort technique and output the number of swaps required

A bubble sort technique compares adjacent items and swaps them if they are in the wrong order. This is done recursively until al...

9 days ago

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Decimation

When dealing to the Roman Army, the term decimate meant that the entire unit would be broken up into groups of ten soldiers, and...

9 days ago

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Create a vector whose elements depend on the previous element

The idea is to create a vector A whose elements depend on the previous element : *A(i+1) = 2*A(i)+1* *2 Inputs*: - A : The...

9 days ago

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Finding peaks

Find the peak values in the signal. The peak value is defined as the local maxima. For example, x= [1 12 3 2 7 0 3 1 19 7]; ...

9 days ago

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Find nth maximum

Find nth maximum in a vector of integer numbers. Return NaN if no such number exists. x = [2 6 4 9 -10 3 1 5 -10]; So ...

9 days ago

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Generate a vector like 1,2,2,3,3,3,4,4,4,4

Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

9 days ago

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Set a diagonal

Given a matrix M, row vector v of appropriate length, and diagonal index d (where 0 indicates the main diagonal and off-diagonal...

9 days ago

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Insert zeros into vector

Insert zeros after each elements in the vector. Number of zeros is specified as the input parameter. For example: x = [1 ...

9 days ago

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Determine the number of odd integers in a vector

Determine the number of unique odd integers in a vector. Examples: Input x = [2 5 8 3 7 1]; Output y = 4; Inp...

9 days ago

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Max index of 3D array

Given a three dimensional array M(m,n,p) write a code that finds the three coordinates x,y,z of the Maximum value. Example ...

9 days ago

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Unique values without using UNIQUE function

You must return unique values in a vector in *stable* mode without using the unique function. About stable order flag: ...

9 days ago

Answered

duplicate values in array

You can use the repelem function as follows: repelem(angvel,10) to get each value repeated ten times . If instead you wanted ...

duplicate values in array

You can use the repelem function as follows: repelem(angvel,10) to get each value repeated ten times . If instead you wanted ...

10 days ago | 1

| accepted

Solved

Pi Estimate 1

Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>

10 days ago

Solved

Calculate area of sector

A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

10 days ago