Nick Counts

Last seen: 6 days ago

Virginia Commercial Spaceflight Authority

52 total contributions since 2014

Mechanical Engineer
Professional Interests: Aerospace, Data Analysis, Musical Acoustics

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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...

3 years ago

Solved

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

3 years ago

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

3 years ago

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

3 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 ...

3 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...

3 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...

3 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 ...

3 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...

3 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:...

3 years ago

Question

Prompt user before clearing axis when using the "clear axes" context menu
Today one of my users inadvertently selected "Clear Axis" (he was aiming for "Paste") while using a tool I wrote and maintain. T...

3 years ago | 5 answers | 2

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answers

Question

Help reducing huge time overhead when executing system() or unix() commands from Matlab function
I have a data processing program that goes through gigabytes of .csv text. The approach I've been taking is to use grep (Mac or ...

3 years ago | 1 answer | 0

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Answered
Running Applescript during MATLAB code
Hi, Regan, It looks like the issue is with paths on OSX and not Matlab. That error is because OSX's |osascript| can't find th...

4 years ago | 0

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How can I graph this matrix?
As KSSV said, we need to know what you mean by "graph the matrix." Your code will definitely make a line, though. From the do...

4 years ago | 0

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Plot out of cell array with attributes
I think you are looking for |gscatter|, which allows you to define a "group vector" and then define different styles for each gr...

4 years ago | 1

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Function inside MATLAB Gui code not outputing variable
Morgan, Sorry if it seemed like we were asking you for something you already gave us, but the entirety of the error message i...

4 years ago | 1

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How do I plot a line graph from two for loops?
If you want to do a simulation where you are stepping forward in time, I suggest saving the results of each timestep so when you...

4 years ago | 1

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How do I put minor ticklabel on and ticklabel off ?
I'm a dummy - I completely forgot about |HideEndTicksIfOutside| ! Setting this to 'on' will hide both the Major tick mark and...

4 years ago | 0

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How do I put minor ticklabel on and ticklabel off ?
Ok, I have a possible workaround. It doesn't truly answer your question, but it might still achieve your aim? You could shif...

4 years ago | 0

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Define vector to use for colorbar
Ok, I spend some time with this and I think i see what's happening. It all boils down to the way you define the CData property o...

4 years ago | 3

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I have created a subplot with many different diagrams. Now i want to set the coordinates range.
Philip, I am unable to reproduce your issue with | axis ([ -500 500 0 222])| changing the limits of all plots. However, yo...

4 years ago | 0

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Where to format plot?
look at the axis property ax.NextPlot. During axes creation, I believe this is set to 'replace' by default. When some o...

4 years ago | 1

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Define vector to use for colorbar
Joel, I don't know about a vector, but you can set upper and lower limits. It looks like you are saving a handle to the color...

4 years ago | 0

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changing the x axis candle stick chart
Sorry, it looks like I misunderstood your issue. Without seeing what your variables are (data types, sizes, etc) it's a little t...

4 years ago | 1

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Delete Entries in Cell arrays with a certain criterea
This is messy, but here is an example. I'm sure there's a slick way to do this with logical indexing, but I can't quite wrap my ...

4 years ago | 0

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Create a uitable with dynamic rows in GUIDE
You can define a default row cell and use repmat() to build a cell array of the size you want: i = 7 defaultRow = {[],[]...

4 years ago | 0

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Error when using legend or clicking on the plot
It looks like you have overloaded allchild.m Enter "which allchild.m" in the command window. You should see something like t...

4 years ago | 0

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how do i solve this coding problem?
when you write an expression like (x4 < x1) when both x4 and x1 are sym objects, Matlab builds a new symbolic expression. It doe...

4 years ago | 0

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pressing key within mfile function
Afsoon, Without your function's code, it's a bit of a guess, but I think your issue probably has to do with variable workspac...

4 years ago | 0

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why my output not display?
Walter is spot-on that the .m file is really needed for specific help. If I read your problem description correctly, you are try...

4 years ago | 0