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29 質問
7 回答

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質問

Roi to a 1D array in matlab
How do i select a ROI using mouse in an image (imagesc plot) and get the content of the roi in a 1d vector? I needed help on tha...

約5年前 | 0 件の回答 | 0

0

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質問

Subplot according to Real size
Greeetings people, I am having an issue regarding plotting according to the real size.I am trying to explain according to this ...

約6年前 | 1 件の回答 | 0

1

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質問

How suppress Background noise?
Hello, I just recorded a voice signal and it has the background noise from ac,fan etc. The frequency spectrum of the noise and ...

7年弱前 | 0 件の回答 | 0

0

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質問

Finding a 2d block with highest average inside a 2d window
Consider a matrix A(52,34) How to find out which 2d block size(3,3) has the highest average in it

約7年前 | 1 件の回答 | 0

1

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質問

Weird problem with MATLAB misbehaving..
This is the Linear regression function. My problem is when I am running one line using this function MATLAB2017a returns values ...

7年以上前 | 1 件の回答 | 0

1

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質問

How to use imagesc and videowriter
Consider that we have multiple images to be shown by imagesc in a loop,How to convert this to a mp4 sequence

7年以上前 | 0 件の回答 | 0

0

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質問

VIDEO WRITER and imagesc coding
hello guys I am running into problem to create this video sequence of the str images as mp4 file.L = 1×6 Image ar...

7年以上前 | 0 件の回答 | 0

0

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質問

Assignment has more non-singleton rhs dimensions than non-singleton subscripts
I am getting this error while I am running a function, I am aware that a few instances like this might happen in the function. I...

7年以上前 | 1 件の回答 | 0

1

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質問

Matrix manipulation and interpolation
<</matlabcentral/answers/uploaded_files/95304/matrix.PNG>> Hello here is my problem,Pls see the image for a simple understand...

7年以上前 | 1 件の回答 | 0

1

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質問

Making normxcorr2 function efficient
Hello the problem I'm facing is that for calculations with large matrix, the normxcorr2 takes much time.So is there be any way o...

7年以上前 | 0 件の回答 | 0

0

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質問

How to check whether a 2d matrix is gradually increasing in values in row direction.
Lets say u have a matrix A=[2 4 7;3 4 6;] So we can see the A(4)==3 in row 2 has increased from A(1)==2 progression, And ...

7年以上前 | 4 件の回答 | 1

4

回答

質問

Finding threshold of matrix
Suppose u have a matrix A with rand (i.e 0-1). Now a threshold(x) of A is to be determined so that 70% of values of the given ma...

7年以上前 | 1 件の回答 | 0

1

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回答済み
Find X and Y using matlab
First you have to make a function like this in a certain directory function F=eqn(k) x=k(1); y=k(2); F...

7年以上前 | 0

回答済み
Problem by creating Sub Matrices
clear all a=magic(5) shiftr=2 shiftc=1 k=1 rowsize=3 colsize=3 for i=1:shiftr:size(a,1) if i+r...

7年以上前 | 0

質問

C++ to 64-bit MEX
Any idea on converting C++ ie .cpp to mex64

7年以上前 | 1 件の回答 | 0

1

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回答済み
Zero-crossing calculation
zeroindex=find(y==0) x(zeroindex)

7年以上前 | 0

回答済み
please how can I Draw the graph of y = 2ex, -5 <= x <= 5
x=linspace(-5,5) y=2.*exp(x) plot(y,x)

7年以上前 | 0

回答済み
Calculating the Greatest Common Divisor for two positive integers (simple)
This is how u call the function.Calling getData and printData is useless. A= input('Enter x') B= input ('Enter y') [M...

7年以上前 | 0

質問

How to do cubic spline smoothing of two 2D matrixes of equal size
Suppose we have two 2D matrix of the same size.How to do the cubic spline based smoothing

7年以上前 | 1 件の回答 | 0

1

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回答済み
I am very new to Matlab and was wondering how to graph the function y= (x-1)/(x+1)
Just include a . before division x= -5:5 y= (x - 1)./(x + 1) plot(x,y)

7年以上前 | 1

| 採用済み

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Extract rows according to the rows sum
clear all close all A = nchoosek(1:9,3) x=find(sum(A,2)==15) B=A(x,:)

7年以上前 | 0

| 採用済み

質問

Indexing error.How out of bound elements in case of indexing error occurs can be replaced by zeros(or by interpolation)
Hey guys could u help me out to solve this indexing error.I want when indexing error occurs in this the out of bound elemnts sho...

7年以上前 | 0 件の回答 | 0

0

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質問

Weird problem with fix.
Guys do you know why fix on matlab 2017a is behaving weirdly. Pls have a look on the attached pic.This is not photoshopped. <...

7年以上前 | 2 件の回答 | 0

2

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質問

CAN ANYONE POST THE CODE OF fillmissing.m (matlab 2017 function).TIA
Hey guys I am on MATLAB 2016a and really need fillmissing.m to ease up things.Can anybody post it here.TIA

7年以上前 | 1 件の回答 | 0

1

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質問

Suppose you have a 2d matrix M. And you have certain indexes where the data is not good.SO you want to fill those indexes by the nearest existing value.Can regionfill be used for this
M=magic(10) index=[7,8,,5,9,45,43,23,34] M(index)=nan Now how to fill up those Nan values such that it contai...

7年以上前 | 1 件の回答 | 0

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質問

Suppose I have a matrix of size(3,3).This is up-scaled by 2 making it (6,6).So there would be a number of vacant values between each element of the initial (3,3) matrix.Then how do you fill up the 0 values in addmatrixR by bicubic/liner interpolation
prevR=magic(3) m=1; k1=1 addRmatrix= zeros(2*size(prevR,1),2*size(prevR,2)) for i=1:size(prevR...

7年以上前 | 2 件の回答 | 0

2

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質問

Changing dimensions of matrix
Say that we have two matrices.One is a 32*15 matrix and the other is 66*31 matrix.It is required to determine where this(32,15) ...

8年弱前 | 2 件の回答 | 0

2

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質問

How can I find all zeros in a 2d matrix and change those values by interpolating with the closest available values ?
For example, A=

8年弱前 | 2 件の回答 | 0

2

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質問

how to extract 2d window from a 2d matrix
consider you have a 9/9 matrix 2d.It is required to extract 9 matrixes like the attachment How to do it by using loops as it...

約8年前 | 1 件の回答 | 0

1

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質問

how to integrate a graph
A function is given for a definite interval. Infact exact problem coding is not required.The solution must be general. # f(x)...

約8年前 | 1 件の回答 | 0

1

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