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How to erode parts of an image
If you just have one image, doing a matlab code to find the borders would be an overkill, so it would be better to just check th...

mehr als 6 Jahre vor | 1

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Repeat specific elements in vector with keeping the basic vector
repelem indeed solves your problem, you just have to give the repetition indexes as a element-wise argument and pass the whole v...

mehr als 6 Jahre vor | 0

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Shortest path through node group sets
If you have negative weightings an Algorithm that would work to find the shortest path is the Bellman-Ford. You can find some in...

mehr als 6 Jahre vor | 0

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Another "unable to perform assignment because the indices on the left side are not compatible with the size of the right side" thread.
The problem is only about the indexing. When you do something like sV(k, c), you're actually getting a matrix with all possible ...

mehr als 6 Jahre vor | 1

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Audio Recording on Matlab Issue
Your code is fine, those square signals are just because the low amount of bits in the default audiorecorder which is very low (...

mehr als 6 Jahre vor | 0

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Create a matrix that stores rows that are not from a random sample
The function ismember may be what you need to efficiently solve your problem: OriginalMatrix = randn(1020,9); RandomMatrixInde...

mehr als 6 Jahre vor | 0

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List of paths between two points
It is not so clear by your list what underlying process you have, but I may assume you have a map (graph) where each point is a ...

mehr als 6 Jahre vor | 0

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Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
You don't need to declare numerical values with syms your variable sum is the same as the function sum for matlab, this can cau...

mehr als 6 Jahre vor | 0

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Selecting specific region around the known indices of a matrix.
You can dilate the image with a disk kernel and then take the difference to get the indexes: A = load('matlab.mat'); h = fsp...

mehr als 6 Jahre vor | 0

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Can i find 'mean' of on column , based on second column ?
You can first find the index where columm 6 is one, save it in a vector and then use it as a mask for your first columm, in this...

mehr als 6 Jahre vor | 0

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Error. I want to plot this ode45 pressure versus time
There were some errors in your code: For ode45 you give numerical functions, not symbolic ones There were some variables that ...

mehr als 6 Jahre vor | 0

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How to find the maximum value for each 2 rows in an array?
If I understood right you want the maximum element-wise matrix entry between the two matrices that appear in your 3rd dimension ...

mehr als 6 Jahre vor | 0

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Find the boundary of any edge in an image .
Your input is just the image, so I can't check the solution in your exact data, but this should either way solve your problem or...

mehr als 6 Jahre vor | 0

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How to calculate correlation coefficients for each corresponding pixel of two images(of same dimensions)? I need the output also to be of same dimension.
I believe they used a slided window cross correlation, which is basically the same as if you use corr2 (which will give you just...

mehr als 6 Jahre vor | 0

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Adding a piecewise time dependent term in system of differential equation
The conditional statement idea is right, the problem was that you considered that the ode45 would evaluate your function only at...

mehr als 6 Jahre vor | 3

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Using a For Loop to calculate the pi for a taylor series
You can do it in a way to test multiple n's at giving input, as for example "[10,100,1000]" as input: clear;clc; format Long ...

mehr als 6 Jahre vor | 1

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Use reshape to image with 3 dims
A = randn(6000,28,28); newA = reshape(A,[28 28 6000]); size(newA) imshow(newA(:,:,1)) size(newA) ans = 28 ...

mehr als 6 Jahre vor | 0

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Hazy image equation implementation.
Can it be possible that you are just making a wrong conversion of your image data? With the code below I show an example of what...

mehr als 6 Jahre vor | 0

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To generate following sequence
You can plot it actually pretty easily, just make sure to use your own u vector below : n = 4:100; u = ones(1,97); y = 5 .*...

mehr als 6 Jahre vor | 0

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i have removed frequency from (3-200)HZ from FFT signal.Now i want to remove noise from last figure which is in time domain so that i can transmit signal.Thanks in advance.
For your signal a median filter may work fine enough. clc,close all,clear all codn=70; % fc=6e+3; fs=3600; bode=10; cod...

mehr als 6 Jahre vor | 0

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How to apply a bound constraint on a complex power vector
Saying that a complex number is bigger than the other is not so simple, you're comparing the magnitue? The real part? The imagin...

mehr als 6 Jahre vor | 0

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Remove strings from an array based on string length
For you to do the comparison you must first convert the string to a numeric. The following code should solve your problem: clc;...

mehr als 6 Jahre vor | 0

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Conditional values and equations
What you want to do is a non-linear optimization of the three parameters alpha, gm and gs. For you to do this you have to define...

mehr als 6 Jahre vor | 0

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Plotting amplitude and phase spectrum
This amplitude and phase spectrum plot of a transfer function is called the Bode plot , it is very well known and you may easily...

mehr als 6 Jahre vor | 1

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Integrate y=x*sin(a*x^4).*exp(x^2./2)
Matlab can't find the close integral form for all functions (some may even not have one). If you are interested only in the valu...

mehr als 6 Jahre vor | 0

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Polyfit not showing a curve
polyfit only get you the coefficients, you then have to actually evaluate some values to get the curve. An easy alternative is t...

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Determine daily derivative of time series data
For you to calculate the daily derivative you have to define a daily measurement for your variables. Normally the average is a ...

mehr als 6 Jahre vor | 0

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Legend with text and values of array
You can pass an cell array of strings to the legend() (here for documentation https://de.mathworks.com/help/matlab/ref/legend.ht...

mehr als 6 Jahre vor | 3

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get parameters of gaussian distributions from ksdensity function
The ksdensity uses a nonparametric representation to calculate the probabilities, so there's no parameters to get from the funct...

mehr als 6 Jahre vor | 0

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Looping random number arrays over a x,y meshgrid
I'm not sure how the equation is supposed to be defined but the main problem here is that you're multiplying arrays of different...

mehr als 6 Jahre vor | 0