Community Profile # Andrew Davis

### McMaster University

Last seen: 11 months ago Active since 2012

Professional Interests: MR Imaging, Image Processing, Signal Processing, Medical Physics

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The position of x-label is reset to the original position when printing a 'boxplot' figure
I had this same problem -- very frustrating! Especially since <http://www.mathworks.com/support/solutions/en/data/1-BNAHS4/?prod...

9 years ago | 0

How to save an image with an overlay mask applied to it?

10 years ago | 1

| accepted

Submitted

GETCLIM: Suggest appropriate values for colormap limits
Determines thresholds such that 2% of data values will be mapped to the extremes of the colormap Submitted

Overlay an image with a thresholded statistical mask. The mask values are not rescaled. Submitted

WelchWin: Welch (parabolic) window function
The function returns a parabolic window of length n. This is useful for spectral estimation. Submitted

ISEQUALFP: Check equality within floating point precision
Accepts two values, returns a logical indicating if they are equal within floating point precision Submitted

FFTWN: Round up to efficient FFT integer
Accepts an integer n. Returns m>=n that is an optimum data length for fast FFT computation Submitted

CHKZIP: check whether a file is a compressed archive
chkzip checks whether the file is a compressed archive and attempts to unpack it Solved

Given a and b, return the sum a+b in c.

11 years ago

Solved

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...

11 years ago

Solved

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...

11 years ago

Solved

Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

11 years ago

Solved

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

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

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

11 years ago

Solved

*Description* The Soroban is the name of the modern Japanese abacus. Information on reading a Soroban can be found <http://we...

11 years ago

Solved

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

Solved

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

Solved

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

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...

11 years 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...

11 years ago

Solved

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

Solved

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

11 years ago

Solved

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...

11 years 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:...

11 years ago

Submitted

SEROUND: Round value and standard error
Input: value and associated standard error (or deviation) Output: string of rounded value +/- error Submitted

FHROI: Interactive freehand ROI
Interactively specify 2D freehand ROI Submitted

Overlay image with semi-transparent mask and return handle  