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Matlaber


25 2019 年以降の合計貢献数

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what does "X = X./max(max(X))" means?>
https://slideplayer.com/slide/14985720/ source

6日 前 | 0

質問


what does "X = X./max(max(X))" means?>
>> X=[1,2,3,4] X = 1 2 3 4 >> X = X./max(max(X)); >> X X = 0.2500 0.5000 0.7500 ...

6日 前 | 3 件の回答 | 0

3

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PCA LDA
Why deleted?

14日 前 | 0

質問


LDA for 2 classes only, why have 3 classes?
Hi, I am trying to use the original code Link here LDA link I found strange is the dataset have 3 classes, but the plotted ...

14日 前 | 0 件の回答 | 0

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What is the meaning of vec2ind "Convert vectors to indices"?
vec2ind vec = [0 0 1 0; 1 0 0 0; 0 1 0 0]' vec = 0 1 0 0 0 1 1 0 0 0 0 ...

14日 前 | 0 件の回答 | 0

0

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Reducing dimensionality of features with PCA
Is there any setting input arguement of coeff = pca(X) coeff = pca(X,Name,Value) [coeff,score,latent] = pca(___) [coeff,sco...

27日 前 | 0

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PCA to reduce dimensionality of feature vector
I just want to have a simple PCA to reduce my dimensionality of let say 400 * 5000 to 400 * 4 meaning reduce from 5000 to 4. ...

27日 前 | 0

質問


PCA in Matlab reduce dimensionality
I just want to have a simple PCA to reduce my dimensionality of let say 400 * 5000 to 400 * 4 meaning reduce from 5000 to 4. ...

27日 前 | 1 件の回答 | 0

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How "hold on" function works?
Is "hold on" function only work in plotting? csvwrite('1test.csv',a, 0,1); hold on; csvwrite('1test.csv',b, 0,2); It seemed ...

28日 前 | 0

質問


How to write multiple input into one csv file
Let say I have a=1; b=2; c=3; d=4; I want to put this output value in matlab to a csv file in the order below. I can use...

28日 前 | 1 件の回答 | 0

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質問


How to read only 1 value in row 2, column 1 ?
I just want to read one value in my csv file. For example: filename = 'csvlist.dat'; M = csvread(filename) result is M = ...

約1ヶ月 前 | 2 件の回答 | 0

2

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質問


Why "File not found"?
I am trying to follow the example of csvread here csvread filename = 'csvlist.dat'; M = csvread(filename) I have csvlist.dat...

約1ヶ月 前 | 0 件の回答 | 0

0

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How to find a slope of signal if we do not know the value of x1, x2, y1, y2
How can we find the slope of a signal if we do not know the value of x1, x2, y1, y2 which we cannot use Slope = (y2 - y1) / (...

約1ヶ月 前 | 1 件の回答 | 0

1

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How to plot a specific value in Y-axis?
I want to plot a specific range of Y-axis and not the entire Y-axis. For example: load sunspot.dat year = sunspot(:,1); av...

約1ヶ月 前 | 1 件の回答 | 0

1

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質問


How to find the value of "Border" in findpeaks built-in function?
Example using this link findpeaks function example link x = linspace(0,1,1000); Pos = [1 2 3 5 7 8]/10; Hgt = [4 4 2 2...

約1ヶ月 前 | 0 件の回答 | 0

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How to cut out specific segment from findpeaks function?
Hi All, I am trying to figure out how to cut out the specific segment of the signal where I draw the border using findpeaks fun...

約1ヶ月 前 | 3 件の回答 | 0

3

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質問


What is the meaning of "width" and "prominences" in findpeaks
It said that: [pks,locs,w,p] = findpeaks(data) additionally returns the widths of the peaks as the vector w and the prominences...

約1ヶ月 前 | 1 件の回答 | 0

1

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how to use helperGaitPlot?
It still not working even with Matlab version 2018b. It said: Undefined function 'helperGaitPlot' for input arguments of typ...

約2ヶ月 前 | 0

質問


how to use helperGaitPlot?
How to use helperGaitPlot helperGaitPlot('als1m'); xlim([0 30]) when i run, it said: >> helperGaitPlot('als1m'); xlim([0 30...

約2ヶ月 前 | 3 件の回答 | 0

3

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CUSUM and CUMSUM, cusum not found
Hi, I am using Matlab version 2015b. I can use "cumsum", but not "cusum". Is it because of different version? cusum link: c...

約2ヶ月 前 | 2 件の回答 | 0

2

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Error in using Load
I am trying to follow "Detecting Outbreaks and Significant Changes in Signals". Link as follow: Link load WestAfricanEbolaOu...

約2ヶ月 前 | 1 件の回答 | 0

1

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peak width calculation methods
I still cannot get the meaning how the width being calculated.

2ヶ月 前 | 0

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findpeaks ( 'WidthReference','halfheight' ) not finding width of peak
Maybe you can paste your code here and have a look. Are you able to find the peaks on your data?

2ヶ月 前 | 0

質問


How the value being calculated for "widths" and "proms" in Peak Prominences?
I am wondering how the value being calculated for "widths" and "proms" in Peak Prominences? I am following "Peak Prominences". ...

2ヶ月 前 | 0 件の回答 | 0

0

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How can I use the 'opposite' of findpeaks input argument?
why cannot we use findpeaks(select,Fs,'MinPeakHeight',10) MinPeakHeight is control the Y-axis level, above 10

2ヶ月 前 | 0