# Joe S

### Roswell Park Cancer Institute

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Maximum value in a matrix

Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

2 years ago

Read .avw files extraced from the Analyze Mayo Clinic software

I haven't been able to sit down and write code for this, but believe the first 4096 bytes of the AVW files are the header. Here...

3 years ago | 0

Finding average of every nth row?

These answers work when dim=1 but appears to fail for ndims =2 (multiple columns). To average nRows together (variable "gps") f...

6 years ago | 1

Find closest value in array

To compute the closest value in a vector “N” for each element of “V”, try the following code with example vectors “N” and “V”: ...

6 years ago | 18

| accepted

Loading a pre-running function into a static Text Box.

1) Be sure to pass the "handles" variable to your subfunctions, so they can "communicate" with your GUI as properties (e.g. stri...

7 years ago | 0

Error message: Undefined function or variable 'divide'.

For element by element division, just use ./ (use of / *without* the leading period is matrix division, likely *not* what you wa...

7 years ago | 0

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 ...

10 years ago

Solved

Determine if input is odd

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

10 years ago

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

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

Distance between 2 points in an image.

Check *ginput* function http://www.mathworks.com/help/matlab/ref/ginput.html can get multiple x & y, then do (pseud...

11 years ago | 0

I'd like to force my exponential fit to start at [0 0]

Not sure if it will fix it, but remember an exponential function can never equal zero unless your A1 & A2 are both 0 (which you ...

11 years ago | 0

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 ...

12 years ago

Solved

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...

12 years ago

Solved

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 ...

12 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...

12 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:...

12 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...

12 years ago