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Error:Field and value input arguments must come in pairs

I have a code with a structure array a which is initialized as follows if true a=struct([]); for i=1:(v_max+5)/5 ...

environ 2 ans ago | 1 answer | 0

Question

Can I store row numbers of a matrix in a column without using any loop?

How will I store the first column of a matrix as its corresponding row number *without using a loop*. That is, the first column ...

environ 2 ans ago | 1 answer | 0

Question

Remove for loop and reduce time

I want to reduce the running time of my code. I found that most of the time in my code is spent in this loop, as this loop is in...

environ 2 ans ago | 2 answers | 0

Question

Not able to add 2d array to 3d array

I'm trying to add the 2d array cycle to a 3d array cycle_mat. i is a variable that changes after each loop iteration. I'm getti...

environ 2 ans ago | 1 answer | 0

Question

Recursive function not stopping

I'm running the following recursive function. By pausing the execution and checking the values, I find that the execution is hap...

plus de 2 ans ago | 1 answer | 0

Question

Could someone please tell me what I'm doing wrong.

I'm using a recursive function to remove missing data from a dataset x. But the result that I'm getting is the same as the input...

plus de 2 ans ago | 1 answer | 0

Question

Matlab getting progressively slower in running simulation

The matlab code I'm running gets slower as time moves on. It's in this part of my program, which has a loop. the loop contains a...

plus de 2 ans ago | 1 answer | 0

Question

Rand error in a while loop. Number of elements not matching. Pls help

I'm getting the following error once in like 50 times : In an assignment A(:) = B, the number of elements in A and B must be ...

plus de 2 ans ago | 2 answers | 0

Solved

Number of Even Elements in Fibonacci Sequence

Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

plus de 2 ans ago

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Summing digits

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

plus de 2 ans ago

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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 2 ans ago

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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...

plus de 2 ans ago

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Remove all the consonants

Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

plus de 2 ans ago

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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 2 ans ago

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Return the largest number that is adjacent to a zero

This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

plus de 2 ans ago

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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...

plus de 2 ans ago

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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...

plus de 2 ans ago

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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...

plus de 2 ans ago

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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 2 ans ago

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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 2 ans ago

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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. Examp...

plus de 2 ans ago

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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 2 ans ago

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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 2 ans ago

Solved

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 2 ans ago