Answered
How can i choose one result of numerical result?
bInOut(end) Swap end for something else if you want a different result, like 1 for the minimum, or 2 for the 2nd, etc.

11 years ago | 0

Question

How to quickly extract a unique list of rows from a cell array?
So, I have an unacceptably large cell array, with far too many rows to reasonably display, and only 5 columns. Each column c...

11 years ago | 1 answer | 0

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Answered
Sorting and collecting data from arrays
range = unique(A(:,1)); for i = 1:numel(range) collection{i} = A(range(i) == A(:,1),2); end

11 years ago | 0

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Solved

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 + ...

11 years ago

Solved

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...

11 years ago

Answered
How to create matrices and change matrix names in a for loop (Sprint and Eval) ?
Period(z)Return{s,j} looks like a structure, but it seems to be missing the "." that would make it work. Period(z).Return{s,j} ...

11 years ago | 0

| accepted

Solved

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...

11 years ago

Solved

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...

11 years ago

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

11 years ago

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Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

11 years 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. Example...

11 years ago

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

11 years ago

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Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

11 years ago

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

11 years 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...

11 years ago

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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...

11 years 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...

11 years 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 ...

11 years 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...

11 years ago

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

11 years 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 ...

11 years 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...

11 years ago

Answered
How to put a list of different arrays, one below another, to create a new array ?
array = []; for i = 1:10 ... array = [array; addthis]; ... end

11 years ago | 0

Answered
How to find derivative of one output signal with respect to other using simulink???
You could just calculate (difference in signal 1 over "a timestep")/(difference in signal 2 over "the same timestep").

11 years ago | 0

Answered
matlab 2nd min question
A(A~=0) = A(A~=0) - min(A(A~=0)); This sets each element of A's elements NOT equal to zero equal to A's elements NOT equal t...

11 years ago | 0

Answered
anyone can explain this error message
That error means that you have attempted to create a single variable that cannot fit _contiguously_ into your system's memory.

11 years ago | 0

Answered
How to combine files(.csv, say 2000files), each file size is a1:g2560, and I want to findout MAX of F column from each file and storing these max values for all files and ploting these MAX values.
csvread is the obvious means of reading csv files, but they need to be all-numbers dlmread is another means of doing it. x...

11 years ago | 0

Answered
Access and store cell arrays in a new variable
out = [cell{the indices of what you want to store}]

11 years ago | 1

Answered
What is the difference between the STATE and OUTPUT of a simulink block. Please explain using one example.
A state is a set of values or conditions. (a column vector) Output is what is output. The output is some function of the stat...

11 years ago | 0

Solved

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

11 years ago