Published

How imshowpair and imfuse work
In this post, I'll explore how imshowpair and imfuse work.Reason: I was curious.Last month, I wrote about registering...

9 mois ago

Shade area in graph for multiple y-axes
I rearranged your code a bit, putting both of the first two plotting functions (patch and plot) after the call to yaxis left. I ...

9 mois ago | 0

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How to add percent change in barplot?
If you want text labels instead of a line plot (Cris' suggestion), then try this code. It gets the Bar object as the output argu...

9 mois ago | 1

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Neighbor and center points of matrix
See my 25-Feb-2008 blog post called "Neighbor indexing" for a general technique. You'll need to pay careful attention to what h...

9 mois ago | 1

Fourier Transform of a signal
The fft function in MATLAB computes something called the discrete Fourier transform. Your problem here is asking you to find som...

9 mois ago | 0

Solved

Matrix Pattern 1

9 mois ago

How can I create a 3D array?
Try something like this: for i = 1:n-1 next_image = uigetfile('*p*'); ImageArray = cat(3,ImageArray,next_image); end...

9 mois ago | 0

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customize export setup to generate SVG
Try this: h = findall(fig,'-property','FontName'); set(h,'FontName','San Serif'); print(fig,'-dsvg','mygraphic.svg')

9 mois ago | 0

Published

Registering Hand-Held Pictures
The typical modern French* horn, pictured below, has about 23 total feet of tubing. At the beginning and the end, the tubing...

9 mois ago

You're looking for a file called rwb.mat. Once you find it, put it in your current working folder or in a folder that's on the M...

9 mois ago | 1

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How to get the x and y coordinates of the each marker in a frame?
I used the Color Thresholder app to get code that segments your image based on the green color of the markers. Then I used regio...

9 mois ago | 0

Give an unknown number of parameters to feval
Put your parameters in a cell array and then use the syntax that expands a cell array into a comma-separated list: out = feval(...

10 mois ago | 0

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Infinite Recursion in own Levenberg-Marquardt Code
I see that korrektur is calling itself recursively. I noticed also that the recursive call appears to be identical to the top-le...

10 mois ago | 1

Text increments of the x-axis
Sure, you can set the XTicks property of the axes object directly. ax = gca; ax.XTicks = [1 2 3]; A shortcut for this is: xt...

10 mois ago | 0

Solved

Find nth maximum
Find nth maximum in a vector of integer numbers. Return NaN if no such number exists. x = [2 6 4 9 -10 3 1 5 -10]; So ...

10 mois ago

Solved

Create an index-powered vector
Given a input vector x, return y as index-powered vector as shown below. Example x = [2 3 6 9] then y should be [...

10 mois ago

Solved

Symmetry of vector
Determine whether the vector is symmetric or not (vector could be even or odd in length). For example: x = [1 2 3 3 2 1] ...

10 mois ago

imshow doesn't display png image file
Your image is stored in the PNG file as unsigned 16-bit integers. When imshow displays a uint16 image, it uses the unsigned 16-b...

10 mois ago | 1

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Solved

Create an n-by-n null matrix and fill with ones certain positions
The positions will be indicated by a z-by-2 matrix. Each row in this z-by-2 matrix will have the row and column in which a 1 has...

10 mois ago

How to plot particle trajectories and normalise to 0,0 origin?
Here is one way you could do it. Read in the whole Excel file as a table. Then, in a loop, extract the particle data for each tr...

10 mois ago | 1

From for to While loop
Here is one way to convert a typical MATLAB for loop to a while loop: for i = 1:N ... end i = 1; while i <= N .....

10 mois ago | 0

Select data from CSV file based on character in position, then read that character and next 2 character, of different read that character and next 3
MATLAB has a number of functions that can automatically read and parse CSV files and return the results in a useful form. Try re...

10 mois ago | 0

Solved

QWERTY coordinates
Given a lowercase letter or a digit as input, return the row where that letter appears on a <http://en.wikipedia.org/wiki/Keyboa...

10 mois ago

Solved

The Tower of Hanoi
In the <http://en.wikipedia.org/wiki/Tower_of_Hanoi Tower of Hanoi problem> with 3 rods (1, 2 & 3), the goal is to move a tower ...

10 mois 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...

10 mois 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 ...

10 mois 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...

10 mois ago

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...

10 mois 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.

10 mois ago