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randomly select elements of an array

Use "randsample" For array: Arry = [1 4 5 7 8 9]; Smpl = randsample(Arry, 3) For strings: Arry = ["Yellow" "Green" "Blue" "...

1 year ago | 0

How to find and access a file / folder on the entire hard drive with Matlab?

I would not recommend performing the search itself directly in matlab. Instead I would invoke the system search using the "syste...

2 years ago | 0

How do I check a each element of a 2 x n matrix for values to remove?

Is your lens a spherical lens, in which case there is a very simple solution (Google intersection of line with sphere: Wiki). D...

2 years ago | 0

| accepted

How can I convert this image in binary image such that region inside red curve is filled with white while rest with black?

Your question is quite vague and the methodology and results depend very much on how the images vary. Remember that the compute...

2 years ago | 0

Big 3D gridded data set

If you really do need all the data, then you can also use "matfile". You bascially then have a cell-array of matfile objects and...

2 years ago | 0

Load text file from subfolder

BaseDir = 'BaseDir'; % Change string to base folder tmp = dir(BaseDir); % Obtains list of files ...

2 years ago | 0

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. Examp...

2 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]; ...

2 years ago

Solved

Matlab Basics - Rounding III

Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

2 years ago

Solved

Find the maximum number of decimal places in a set of numbers

Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not coun...

3 years ago

Solved

MATLAB Basic: rounding

Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

3 years ago

How to make and use many fast functions in Matlab?

My recommendation would be to write a class which would significantly reduce the redundancy in your code. You can use dependent ...

4 years ago | 0

Plotting from a loop in a live script in Matlab 2016b

There is a slight workaround, which works in version 2017b (no need to manually create the axes, replace this and the title line...

5 years ago | 1

Camera identified by hardware detection application but doesn't show up in image acquisition tool

With regards to copying the data, there is an alternative method, but exactly what use it is I do not know. I've actually manage...

8 years ago | 0

Solved

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.

8 years ago

Solved

Determine if input is odd

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

8 years ago

What's wrong with this expression?

Are a, b, & c scalars. If so: y = a*exp(-((x-b)/c).^2); However, a more general version makes use of bsxfun ( <http://matlab...

8 years ago | 0

Cylindrical to rectangular correction in image processing

Create projected co-ordinates of original image [Ny, Nx] = size(Img); x = (1:Nx).'; y = (1:Ny).'; Create original ...

8 years ago | 0

How to write a Monte Carlo Simulation Code?

Your question is ill-defined. Monte-Carlo simulations simply mean perform your simulation with varying inputs such that the i...

8 years ago | 2

How to show a sequence of images

You need to either add a callback function to the image/figure to respond to user key presses or mouse clicks, or you could add ...

8 years ago | 0

Matlab OOP, dependent class properties, correct coding techiques

I generally just ignore this warning - you can turn it off for the line, file or all files (I've done the latter). In your sc...

8 years ago | 1

| accepted

How can I use MATLAB to estimate the parameters of an exponential-gamma convolution?

Simple solution v = fminsearch(@(v) sum(abs(Data - YourGammaConvolutionFunction(v(1), v(2), v(3))).^2), [v01 v02 v03]); ...

8 years ago | 0

How to prepare data set from an Image to find out number of clusters automatically?

What do you mean cluster? The image processing toolbox has functions for doing this (if you mean a cluster is when all adjacent ...

8 years ago | 0

| accepted

How to continue GPIB reading with fscanf after EOI?

Try using fgetl to read the whole line, and then you can perform some error checking or different parsing rules. Also, surely...

8 years ago | 0

Nested For loops- Pleeease HELP!!

* Your code could easily be vectorized. * *never* use i or j for indexing because these are used for sqrt(-1) and can easily c...

8 years ago | 0

Which camera should i use to acquire real time video to matlab

If you cannot narrow down your choice based on specifications, pick any! http://uk.mathworks.com/hardware-support/basler-came...

8 years ago | 0

Logical or not logical?

* All numbers are by default of class type "double" (unless specifically cast as int etc.). * Logical values are of class "logi...

8 years ago | 2

Positive Semi-definite Matrix Problem

FYI: C' is conjugate transpose - you should use C.' if you don't want the complex conjugate. If it is indeed due to a numeric...

8 years ago | 0

Which camera should i use to acquire real time video to matlab

Look here http://uk.mathworks.com/hardware-support/index.html?q=product%3A%22Image%20Acquisition%20Toolbox%22 It took about ...

8 years ago | 0