Make change for a dollar amount
This question usually comes out a lot in job-interviews. The common method of implementation is using a recursive function. Save...
11 years ago | 3
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Create equally spaced 2-d array
arrayName=bsxfun(@times,(1:n)',linspace(1,2*pi,100*n))
11 years ago | 0
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How can I map consecutive elements to a vector value?
That is easy, r and c are the row and column index of X. I am assuming X is of size 22198x41, (since your m is 22198 and your...
11 years ago | 0
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Creating a function that identifies repeated items in a vector
testVector=[11 22 33 44 55 66 77 99 11 102]; result=(numel(testVector)~=numel(unique(testVector))) if testVector has...
11 years ago | 1
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Submitted
loadLandSat8(metaFileName,bandList)
loading LandSat images using the metadata
11 years ago | 1 download |
finding index of min value in a matrix
So, you know what elements of the matrix you want to check? If that is so, then let's say the row and column of those three e...
11 years ago | 1
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How to count number of devices in a given area ?
If you know the polygon defining the coverage all you need to do is find out if a point falls in that coverage or not. MATLAB...
11 years ago | 0
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How to delete a set of numbers in the end of nth text file ?
So read the numbers in an array numberArray=myreadingfunction(...); then filter those that you don't want Lets say your ...
11 years ago | 0
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Circularity of an image
does it have to be circularity? Can you replace circularity with the ratio between major/minor axis length?
11 years ago | 0
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How can I remove everything except leaves?
Use a combination of hsv and activecontour I=imread('Finger2.png'); hsv=rgb2hsv(I); m=(hsv(:,:,1)>0.08 & hsv(:,:,1)<0...
11 years ago | 1
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parfor. Error: The variable eavg in a parfor cannot be classified.
your parfor is based on i0 eavg is not being sliced by that. So it doesn't know how to slice eavg and then once it comes out ...
11 years ago | 0
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Is there a facility witin Matlab(r2014b), which would allow the user to see an entire image display(even using a sliding window)?
Check <http://www.mathworks.com/help/images/ref/imscrollpanel.html imscrollpanel()>. Also http://www.mathworks.com/help/image...
11 years ago | 0
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How to concatenate or save iteration from a loop when the answers are vectors?
add an extra dimension So instead of Answer(i)= .... write Answer(i,j)= .... where j is the loop index. ...
11 years ago | 0
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Creating a gradient ascent matlab function?
It is the same as gradient descent except that you don't multiply your step by a negative sign. So your step has the same sign a...
11 years ago | 0
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png to tif convertion
I=imread('image.png'); imwrite(I,'image.tif','tif');
11 years ago | 0
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How to calculate period of signal with matlab
use autocorrelation. If your data is periodic you should get high correlation once the lag time matches the period. here is an e...
11 years ago | 10
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Convert nearly created string in a structure format to a variable name in a for loop
I code it something like this: (note the use of ( ) while referencing structure fields with string, such as *A.(carNumber).speed...
11 years ago | 1
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How to read and write this file?
[h11,h12,h22]=textread('data.txt','%f %f %f','headerlines',2);
11 years ago | 1
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Sparse Arrays - Specific Function?
s=sprand(100,100,0.05); s(sub2ind(size(s),1:100,1:100))=1.0; *or* s=sprand(100,100,0.05); s(1:101:(100*100))=1.0...
11 years ago | 0
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Going from switch case construct to loop?
put your current code in a function such as function outputMorse=char2morse(inputeChar) So this function gets a characte...
11 years ago | 0
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what is the x-axis in the figure represent ? frequency, samples?
the way that you are using stem function, the x axis would be the index number. So your xFFT is an array of 201 double precis...
11 years ago | 1
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For what reason an ODE solver could run for ever?
It could be various reason. How do you store the variables? Once running the code for twice the time t_max=2000, are you sto...
11 years ago | 0
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how to convert a series of RGB images into grayscale and save them?
Actually you are only saving the last snap shot as grayscale. Change your code to this: for i=1:10 a=getsnapshot (cam...
11 years ago | 1
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how can i validate in my code if a user inputs non numeric values? how can i limit just for 4 values?
use <http://www.mathworks.com/help/matlab/ref/validateattributes.html validateattributes>. You can check for both type and si...
11 years ago | 0
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recognize count white dots in grey background
Generally this should work. Use graythresh and im2bw to make a mask of white dots and then use bwconncomp to count them. Chec...
11 years ago | 0
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Coding Euler's Method!!
Your code is correct. What is x0 = [2;0;0]; at the end though. Here is a modified version of your code. It is modified in...
11 years ago | 0
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Three ways to do the same integration leading to three different speeds: why?
Calling a function has some overhead. So you are adding that overhead 1,000,000 times and that's why it takes longer. The sam...
11 years ago | 0
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Geo or Map Raster Reference Orientation
Look at it this way, you have A of size MxN. then each element of A can be referenced as A(r,c) or A(1,1) A(1,2) A(1,3) ...
11 years ago | 0
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