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the cyclist


3,641 2011 年以降の合計貢献数

Data scientist at Cohen Veterans Bioscience; Obsessive runner. Professional Interests: Predictive modeling, statistics.

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is there any way to use both Spearman and Euclidean distance using knnsearch ?
No, they cannot both be used within a single call to knnsearch. I don't really see how "merging" would really be that helpful. ...

約22時間 前 | 1

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How can I separate complex numbers from the other in a matrix?
% Example data z = [1 1+2*i 3 4+5*i] mask = imag(z)==0; The variable mask is a logical variable that is TRUE at the locatio...

13日 前 | 2

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Finding the locations of non-similar value cells
I'm not certain I understand exactly what you want, but this is my best guess: % Define input arrays CA = {[-10 2],[6;6]}; CB...

22日 前 | 0

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NIST Randomness test execution
The answer from Peter Perkins here is old, but I believe it is still accurate.

25日 前 | 0

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For every matrix row find rows within the same matrix that have more than one common element in same index below the row
Here is a start at a solution for you. A = [ 1 2 3 1 4 5 3 4 5 1 2 4 1 2 5 2 4 5]; for i = 1:size(A,1)-1 r{i} = f...

25日 前 | 0

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Serious mistake installing Matlab
Does this documentation page about uninstalling MATLAB help?

約1ヶ月 前 | 0

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How to write cell arrays in Excel?
I use cellwrite from the File Exchange.

約1ヶ月 前 | 0

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I would like to call a row element from a matrix however, the row is written inside another matrix
If T is the temperature matrix, then it sounds like maybe you want to do T(A(1)) Or use a loop to access more rows of T? for ...

約1ヶ月 前 | 1

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ismember 0×0 empty logical array to logic
Making a huge guess here, but are you sure you don't mean ~ismember(ID,A) rather than ~ismember(A,ID) Then, assuming ID is a...

約1ヶ月 前 | 0

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I have a csv file, which contains some 0 and some non-zero values. How to get the index of the non-zero values in the csv file?
data = csvread('Book4.csv'); idx = find(data);

約1ヶ月 前 | 1

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replace random data with dataset
My best guess at your error is that your randomly generated data consists of two [1 x numP] row vectors, but when you read your ...

約1ヶ月 前 | 0

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How to find a polynomial of degree 2 that fits the given data with minimal approximation error? and then sketch discrete points and the graph of the polynomial
You could use the polyfit and plot commands (and of course a few more fundamental calculations like subtraction) to do this.

約2ヶ月 前 | 0

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draw circle through two given points in plot
In general, there are an infinite number of circles that pass through two given points. If you don't care which one, then one p...

約2ヶ月 前 | 1

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Reading file with variable name
for n = 1:16 filename = sprintf('PPT%d.TXT',n) end That loop creates the filenames you need, with the '%d' in the sprintf...

約2ヶ月 前 | 1

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Why the result of GMM(Gaussian mixture model) is not the same for twice calculation?
There is a random component to the fitting algorithm. The results will not be exactly the same each time, because the pseudorand...

約2ヶ月 前 | 0

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Creating new dataset corresponding to certain name within a variable column
Here is one possible way. (It assumes your table's variable name is tbl.) outcome = tbl(ismember(tbl.bottle,'C-a'),:);

2ヶ月 前 | 0

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Boxplot and Dimensions Arrays
If you define your original arrays as column vectors, instead of row vectors, your code will work. Try this instead: %msf for s...

2ヶ月 前 | 0

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Removing vertical line from the script window
From the Command Window: MATLAB --> Preferences --> Editor/Debugger --> Display Increase the right-hand text limit.

2ヶ月 前 | 0

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Center of two points (positive and nenegative values)
I believe your calculation is correct for negative values of v. The problem is that the point may not lie between the two input ...

2ヶ月 前 | 0

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how to test if multiple distributions are statistically different from each other?
What is reported in that table are the parameters of lognormal distributions. Because the parameters are different, those distri...

2ヶ月 前 | 0

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Missing factor using rule of three?
Try (0.004*4*pi)/(2*pi) The reason your syntax does not work is that it will divide by 2, and then multiply by pi. See order ...

2ヶ月 前 | 1

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How can I average the first 14 columns, the second 14 columns, and so on and so forth?
Assuming you actually want to average over columns (see my question above), I believe out = movmean(M,[0 13],2); out = out(:,1...

3ヶ月 前 | 1

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delete rows from matrix if some of its elements equal all elements in another rows another different dimension matrix?
Here is one way: Sw = [2 3 6 25 11 3 6 7 8 9 3 6 25 8 9 3 6 25 11 11 3 4 5 6 25 4 ...

3ヶ月 前 | 0

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Can copula PDF value exceed 1?
Yes, a probability distribution function can have values greater than 1. Remember that the PDF is not the probability at that l...

3ヶ月 前 | 0

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What happen with confusion matrix ?
It looks like you have 55 observations. 51 of them were classified correctly (along the diagonal, indicated in green). But 4 of ...

3ヶ月 前 | 0

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Vectorized Search of substrings in Cell Array
Discovered a much cleaner way: contains(t,'bc');

3ヶ月 前 | 0

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Vectorized Search of substrings in Cell Array
Here is one way: cellfun(@(x)not(isempty(x)),strfind(t,'bc'))

3ヶ月 前 | 1

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Conversion of any base (n) to a base 10 number?
There is a thorough answer to this question here.

3ヶ月 前 | 0

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How to create this matrix without hardcoding the values
Here is one way. r = [ 1.5355 + 0.0000i -1.0914 + 1.0781i -1.0914 - 1.0781i 0.3621 + 1.3117i 0.3621 -...

4ヶ月 前 | 0

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how to make a curve of Poisson, Rayleih, t , ....etc distribution of my random data (in histogram)
If you have the Statistics and Machine Learning Toolboox, then you could use the fitdist function. It will fit a large variety o...

4ヶ月 前 | 0

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