Michael Hawks

Resonant Sciences

Last seen: 2年以上前 | 2013 年からアクティブ

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create a vector of all the odds positive integers smaller than 100 in increasing order to save it into a variable
You were close. You just need to change one digit from your command to look like this: odds = [1:2:99] The '2' in the 2nd pos...

4年以上前 | 0

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How can I merge different regions in a binary image?
I think you want to first create a binary image using a threshold test. If your image is named Image, then th = 128; bin = (I...

5年以上前 | 0

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How do I find the area of the image in meters using MATLAB?
I agree with gonzalo -- it's not really a Matlab question. But if you know anything about your camera you could also solve it t...

5年以上前 | 1

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Append rows at the end of Matrix
Another method: a = [1 2 3 ; 4 5 6; 7 8 9]; b=[5 5 5]; a( end+1, : ) = b; or a( :, end+1 ) = b';

5年以上前 | 2

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Shrinking image by averaging
Try this: Nrow = 12; Ncol = 15; input = rand(Nrow,Ncol); shifts = [0 0; 0 1; 1 0; 0 -1]; A = zeros(Nrow,Ncol,4...

約6年前 | 1

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how to write fitness function for PSO other optimization techniques? if we have 2 output parameter and 3 input parameter.
The best approach will depend a lot on your data. A good first step might be to look at pairs of parameters using cftool. This...

約6年前 | 0

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How to force numerator and denominator coefficients to be >0 in tfest?
Estimating transfer functions from noisy data can be tricky, but forcing values to be >= 0 is pretty easy so I'll stick to that ...

約6年前 | 0

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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

約8年前

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

約8年前

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

約8年前

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Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

8年以上前

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Pascal's Triangle
Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...

8年以上前

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Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

8年以上前

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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...

8年以上前

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Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

8年以上前

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Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

8年以上前

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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...

8年以上前

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Is my wife right?
Regardless of input, output the string 'yes'.

8年以上前

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Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

約9年前

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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...

約9年前

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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...

約9年前

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The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

約9年前

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Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

約9年前

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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...

約9年前

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Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

約9年前

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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...

約9年前

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Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

約9年前

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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...

約9年前

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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...

約9年前

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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...

約9年前

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Michael Hawks

Resonant Sciences

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