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# Allen

##### Last seen: 1 month ago
456 total contributions since 2017

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Question

Uitable editable cells not updating at first key value
I have a uitable setup that allows the user to enter values in one of its columns. However, the issue is that MATLAB appears to ...

2 months ago | 1 answer | 0

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Addition of 2 matrices with different dimensions
In this instance your are describing, MATLAB is assuming element-wise addition between the rows and columns. Where Where, x = ...

2 months ago | 1

| accepted

How do I get a function in a for loop so it applies it to an entire table?
A relatively general approach to extract max values by year for each table variable (stations in this case) assuming the first v...

2 months ago | 0

Solved

Is the Point in a Triangle?
Check whether a point or multiple points is/are in a triangle with three corners Points = [x, y]; Triangle = [x1, y1; x...

2 months ago

Solved

Height of a right-angled triangle
Given numbers a, b and c, find the height of the right angled triangle with sides a and b and hypotenuse c, for the base c. If a...

2 months ago

Solved

Find the sides of an isosceles triangle when given its area and height from its base to apex
Find the sides of an isosceles triangle when given its area and the height from its base to apex. For example, with A=12 and ...

2 months ago

Solved

Can we make a triangle?
Given three positive number, check whether a triangle can be made with these sides length or not. remember that in a triangle su...

2 months ago

I am certain that there is a much better method using vectorized indexing, but without seeing an example of the values in TimeSe...

2 months ago | 0

| accepted

How can I hide the App Designer Slider Control's built in label programmatically?
In App Designer the label handles are created in conjunction with, but separately from the main object. The handles for the labe...

2 months ago | 0

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Create multiple files via for loop
You can use uigetfile to easily select mutliple files and make the filename acquisition process a little more simple. % Prompts...

2 months ago | 0

How to make 2 gui sharing the same handles structure
If you are using GUIDE to build your applications, then my suggestion would be to create a separate "Parameters" GUI application...

2 months ago | 1

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How to format a matlab program to be useable by the application compiler?
It depending on how your code is written and your intentions for using it as an executable. Mostly likely you will need to have ...

2 months ago | 0

Export a Cell as a text file with two delimters
Try the following: % Converts the cell array to a string array, then joins the strings using a comma-tab delimiter strjoin(str...

2 months ago | 0

Convert Text into Date Format
Try the following: % Code works with either a string or numerical input str = '196307'; datestr(datenum(str,'yyyymm'),'mmmm y...

2 months ago | 1

How to take 2D mean ignoring nan values using cellfun?
Niky, My previous suggestion did not fully look at the input requirements for 2D usage of std. The following revision should ac...

2 months ago | 0

How to take 2D mean ignoring nan values using cellfun?
Try the following: a = mat2cell(A,dimSpec1,dimSpec1); % calculating standard deviation in segments sigma = cellfun(@(x) std...

2 months ago | 0

Assigning NaN to certain values
A slightly more simple approach: Temp(round(Temp,4)<=-177.57)= NaN;

2 months ago | 0

Replace the diagonal with NaN in this 5x5 matrix
Another approach to this if you know that your original matrix will always be a square matrix. You can use the following: a(eye...

2 months ago | 0

| accepted

Question

Predetermine axis limits without plotting
I have a very large number of data sets (blocks) that I am currently extracting the min and max values from and plotting the res...

2 months ago | 1 answer | 0

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Solved

Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
If _p_ is the perimeter of a right angle triangle with integral length sides, { _a_, _b_, _c_ }, there are exactly three solutio...

3 months ago

Solved

Find my daddy long leg (No 's')
Given the ratio of the two legs (longer / shorter), and the hypotenuse length, find the value of the bigger leg.

3 months ago

Solved

Calculate the area of a triangle between three points
Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

3 months ago

Solved

Natural numbers in string form
Create a cell array of strings containing the first n natural numbers. _Slightly_ harder than it seems like it should be. Ex...

3 months ago

Solved

Fix the last element of a cell array
Note: this is lifted directly from <http://www.mathworks.com/matlabcentral/answers/82825-puzzler-for-a-monday Puzzler for a Mond...

3 months ago

Solved

String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values
<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

3 months ago

Solved

Remove element(s) from cell array
You can easily remove an element (or a column in any dimension) from a normal matrix, but assigning that value (or range) empty....

3 months ago

Solved

Convert a Cell Array into an Array
Given a square cell array: x = {'01', '56'; '234', '789'}; return a single character array: y = '0123456789'

3 months ago

Solved

Convert a numerical matrix into a cell array of strings
Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

3 months ago

Solved

Create a cell array out of a struct
Create a cell array out of a (single) struct with the fieldname in the first column and the value in the second column: in: ...

3 months ago

Solved

There are 10 types of people in the world
Those who know binary, and those who don't. The number 2015 is a palindrome in binary (11111011111 to be exact) Given a year...

3 months ago