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Tim Mottram


Exeter University

Active since 2011

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Question


Filter made using fir1 has poor low frequency cutoff performance.
I am using the fir1 function to produce coeff's for a bandpass filter. The high frequency cutoff is good, but when I try and use...

10 years ago | 1 answer | 0

1

answer

Question


Wait For Key Press?
Hi Guys, I'm having a problem where I want to view consecutive 3d scatter plots. I plot the first one, then, when I'm ready I pr...

12 years ago | 2 answers | 0

2

answers

Question


48 Dimensional Euclidean Distance.
Hi Guys, Hopefully this will be a quicky. If I have two points in two dimensional space I find the distance as: sqrt((x1-x...

12 years ago | 1 answer | 0

1

answer

Question


Returning which button was pressed.
Hi guys, I have been looking for a while but cant seem to find an answer. If i use something like: waitforbutttonpress c...

12 years ago | 2 answers | 0

2

answers

Question


Two Bar Plots on one graph, with the bars next to each other, not on top of.
Hi guys, As the title suggests I want to make a bar graph. I have 2 histograms and the values for xOut are the same. If I tr...

12 years ago | 2 answers | 1

2

answers

Question


Do figures have to be active to add plots to them?
Hi Guys, This is the situation, I create 4 fill plots using and return there respective axis handles using: figure('Outer...

12 years ago | 1 answer | 0

1

answer

Answered
Returning Plot handle From a function.
H = myFill f = fill(freqPoints,filledGood,goodColour,freqPoints,filledBad,badColour); set(f(1),'EdgeColor',goodEdge,'F...

12 years ago | 0

| accepted

Question


Returning Plot handle From a function.
Hi Guys, I have a function called myFill which uses the following commands to plot two filled areas: f = fill(freqPoints...

12 years ago | 2 answers | 0

2

answers

Question


Adding Lines to Several Plots
Hi Guys, I have 5 figures open and have used fill() to plot two areas on each figure. I now want to plot a single line on each o...

12 years ago | 2 answers | 0

2

answers

Question


Updating Table Data not working
Hi Guys, This should be simple but I seem to be hitting a brick wall: I use: table = uitable('Data',data,'RowNames',ro...

12 years ago | 1 answer | 0

1

answer

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...

12 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...

12 years 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...

12 years 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...

12 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...

12 years 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...

12 years ago

Solved


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

12 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 ...

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


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


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


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

12 years ago

Solved


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

12 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 ...

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

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

Answered
Why does UIGETFILE Put the last file name at the start then the rest in order.
When selecting multiple files by clicking and holding the shift key, the last file you click on goes in the first cell, they the...

12 years ago | 0

| accepted

Question


Why does UIGETFILE Put the last file name at the start then the rest in order.
Hi guys, I'm using UIGETFILE to return me the names of files in a folder. The File names are ordered correctly in the folder but...

12 years ago | 1 answer | 0

1

answer

Question


Is there any way to selectively remove lines from a plot?
Hi, I have an axes, I plot 100 lines on it then load some more data and plot another 100 lines. Is there a way of removing only ...

12 years ago | 1 answer | 0

1

answer

Question


Why does button group not work?
Hi Guys, I am making a GUI which, to all intents and purposes, plots some data. I wanted a set of radio buttons to change the...

12 years ago | 2 answers | 0

2

answers

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