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Can Matlab do L1 minimization?
It will do its best to minimise the residual errors. If a real solution exists, it will converge on that. Yes, it's 'approxima...

14년 초과 전 | 0

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Summing output of for loop.
I gather you have the following situation, or something similar. nloops = 100; sumE = zeros(n,m); for i = 1:nloops ...

14년 초과 전 | 2

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Save an iterated 3D pixel sum as a vector? (Successful help -> I'll paypal the value of a beer!)
Just gonna chuck in my 2c worth... h = heightLower(CaseStudy,1):heightUpper(CaseStudy,1); w = widthLower(CaseStudy,1):wi...

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Array matching
child = A; child(A ~= B) = 0;

14년 초과 전 | 4

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sum hourly precipiation data into individual storm events
You can use basic MatLab stuff for this too. Convolution will detect stretches of no rainfall. dry = conv(rainfall, ones...

14년 초과 전 | 0

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How to do a network program?
This is an answer I gave a while ago for someone wanting to interface with MySQL. Might help you get past a couple of hurdles. ...

14년 초과 전 | 0

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How to determine connectivity with binary numbers?
Yeah. A = [1 2 2 2 2; 2 2 1 2 2; 2 2 2 2 1; 1 1 2 2 2; 2 2 2 2 2]; B = ~logical( A - 1 ); Now do your tests with B, l...

14년 초과 전 | 1

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right shift of integer variable
MatLab is pretty infuriating sometimes. For example, if you cast a float as an int, it 'helpfully' _rounds_ the value instead...

14년 초과 전 | 0

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measuring a triangle
You want the side lengths? Is it easy to determine whether a pixel is in the triangle or not? _ie_ is it isolated? You coul...

14년 초과 전 | 0

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Help! Matrix minimal path?
The REAL way to do this is to implement Dijkstra's Algorithm: <http://en.wikipedia.org/wiki/Dijkstra's_algorithm> Or to use d...

14년 초과 전 | 0

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Matrix Max Sum
If I understand your question correctly, you must pick a value from each row/column such that you never use a row or column more...

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Convert to date, hour, and minute
Yep, First, concatenate the first and third columns to use the normal date conversion, then add the second column. Put the r...

14년 초과 전 | 0

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Problem with imresize function.
The upscale and subsequent downscale of 8 > 192 > 8 should be fine, but I don't know how you expect resizing from 5 > 1 > 5 is g...

14년 초과 전 | 0

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Basic Matlab Fractal Function (Recursion Loop Help)
So the whole point of using recursion for a fractal is that you call a single function which draws your fractal. Repeated recur...

14년 초과 전 | 0

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Interface microphones using matlab
Sorry mate, it looks like you are expecting the two-channel mic jack on your sound card to have three inputs. Go and buy your...

14년 초과 전 | 0

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Matrix Error
Well, |u| is a 1x450 vector, and |x| is a 1x3 vector. You can't add those together. What is that line of code supposed to _m...

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Economical use of memory
As long as you don't CHANGE the variables that you pass into your function, they are passed by reference. Consider this test ...

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Why do you come to "MATLAB Answers"?
Escapism...

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How to remove noise?
As Walter says, everything is text. Are you planning to use character recognition on this? In your case, I'm going to assume...

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matrix
m(row, :) = []; Where |row| is the row index, or vector of row indices.

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how to plot in red colour on image
You mean you want to change the pixel at x,y to red? img(y,x,:) = [255 0 0]

14년 초과 전 | 0

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GUI in Busy Status - Block interactions in the Figure
Maybe you could look at doc uiwait Dunno how to stop clicks on the menu/toolbar. But you could just hide them =) s...

14년 초과 전 | 0

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Trigger camera at evenly spaced times
I had a look at the camera's manual here: <http://www.thorlabs.us/Thorcat/15900/15982-D02/index.html> It apparently comes wit...

14년 초과 전 | 0

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plotting a vertical line in matlab?
As the error says, you don't have a variable called |x| and so you can't ask for the 668th element. You might mean this: ...

14년 초과 전 | 1

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Computing vectors using a square n by n matrix. Seems easy but is tricking me.
There really are no shortcuts in learning how to think in computer-speak. Your real learning happens when you sit down and try ...

14년 초과 전 | 1

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Trying to write a program to implement Euler's Algorithm????
Have you considered doing a _google_ for the Euclidean Algorithm? <http://lmgtfy.com/?q=euclidean+algorithm> Try the very ...

14년 초과 전 | 0

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Writing a program for generating random numbers involving a circle and a square, help please??
You are generating your x- and y-values between -1 and 1, which means you're automatically sampling randomly within the square. ...

14년 초과 전 | 1

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RMS amplitude
I gave an answer today that required an RMS calculation. <http://www.mathworks.com.au/matlabcentral/answers/35658-how-can-i-c...

14년 초과 전 | 1

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help using fgetl function???
Mate, you're doing something odd. For starters, you're opening the file in 'write' mode but you are clearly wanting to read f...

14년 초과 전 | 0

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Using slider to update a variable displayed in a text box
In your slider-change callback, you need to add code that will cause the edit box to update. function onSliderChanged ...

14년 초과 전 | 0

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