Benjamin Kraus

Last seen: nästan 3 år ago | Active since 2010

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Benjamin Kraus is a Software Engineer at MathWorks. He earned his B.S. in Biological Engineering (with a minor in Computer Science) at Cornell University, and his M.S. and Ph.D. in Biomedical Engineering at Boston University. His Ph.D. thesis in the field of Neuroscience involved studying episodic memory using electrophysiology to measure brain activity in awake behaving rats.

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matwho
Quickly list the variables in the specified .MAT file.

mer än 11 år ago | 1 download |

Submitted

readPLXFileC
A MEX function to read a PLX data file (Plexon, Inc.).

mer än 11 år ago | 10 downloads |

Submitted

nanconv
Convolution in 1D or 2D ignoring NaNs and (optionally) correcting for edge effects.

nästan 12 år ago | 16 downloads |

Submitted

nantowhite
Convert a 2D matrix into an image with NaNs replaced by white

nästan 12 år ago | 1 download |

Submitted

nanconvn
Convolution in ND ignoring NaNs and (optionally) correcting for edge effects.

nästan 12 år ago | 1 download |

Solved

Find state names that end with the letter A
Given a list of US states, remove all the states that end with the letter A. Example: Input s1 = 'Alabama Montana Nebras...

nästan 12 år ago

Solved

Kaprekar Steps
6174 is the <http://en.wikipedia.org/wiki/6174_%28number%29 Kaprekar constant>. All natural numbers less than 10,000 (except som...

nästan 12 år ago

Solved

Find relatively common elements in matrix rows
You want to find all elements that exist in greater than 50% of the rows in the matrix. For example, given A = 1 2 3 5 ...

nästan 12 år ago

Solved

Alphabetize by last name
Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

nästan 12 år ago

Solved

Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

nästan 12 år ago

Solved

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...

nästan 12 år ago

Solved

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...

mer än 12 år ago

Solved

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...

nästan 13 år ago

Solved

The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

nästan 13 år ago

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

nästan 13 år ago

Solved

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

nästan 13 år ago

Solved

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

nästan 13 år ago

Solved

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...

nästan 13 år ago

Solved

Sort numbers by outside digits
Sort the array so that they are sorted as if their value was a 5 digit number made from the first three and last two digits of t...

nästan 13 år ago

Solved

Poker Series 05: isStraight
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

nästan 13 år ago

Solved

Poker Series 04: isFlush
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

nästan 13 år ago

Solved

Poker Series 03: isFullHouse
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

ungefär 13 år ago

Solved

Poker Series 02: isQuads
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is to...

ungefär 13 år ago

Solved

Poker Series 01: isStraightFlush
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

ungefär 13 år ago

Solved

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

ungefär 13 år ago

Solved

Eight Queens Solution Checker
Write a function to verify whether an arrangement of queens on a chessboard is a valid solution to the classic <http://en.wikipe...

ungefär 13 år ago

Solved

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...

ungefär 13 år ago

Solved

Duplicates
Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

ungefär 13 år ago

Solved

Summing Digits within Text
Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

ungefär 13 år ago

Solved

Replace NaNs with the number that appears to its left in the row.
Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

ungefär 13 år ago

Benjamin Kraus

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