I’m using Clustering Pkg and function fuzzy_cmean, and try to assign the cluster number to each data. If I use findmax(FuzzyCMeansResult.weights, dims=2) will give us (value, CartesianIndex(2)). Then, I cannot find out how to use CartesianIndex(2) values for real data. For example, sometimes it w…

[image] Tomoyuki_Kosaka: I hope to extract “2” from CartesianIndex(1,2). How can I do it? Just extract it with normal indexing? julia> CartesianIndex(1,20)[2] 20

I considered and revised description. If I need to do more, please tell it to me. Thank you.

It would be nice to have a simple example that illustrates the problem and that doesn’t rely on any external packages. Something that can be copy pasted into the REPL. A CartesianIndex represents an index into a potentially multidimensional array. So I’m not sure what converting it to an integer m…

Thank you for your suggestion. I do not mention about “linear index”. I hope to extract index value itself. julia> I[CartesianIndex(1,2)] 3 I hope to extract “2” from CartesianIndex(1,2). How can I do it? This is my output when doing the analysis. julia> fuzzy_clusters = cluster_list[2] 645…

Thank you! I got it. [ i[2] for i in fuzzy_clusters ] or map(i->i[2], fuzzy_clusters)

Let’s say yo have 2 dimensional array mA = randn(10, 2). I’d like array of the indices of its minimum argument along the rows: vMinIdx = argmin(mA, dims = 1); In the case above vMinIdx is a 2-element Array{CartesianIndex{2},1}:. I intend to ask which row index has the value of jj. So I did it as…

[image] RoyiAvital: sum(mX[:, vMinIdx .== jj], dims = 2) It’s unclear to me what you’re trying to do, since your code doesn’t run ERROR: UndefVarError: jj not defined Also, you want the minimum argument along the rows, but on the next line you write dims=1, which is along the columns. Can …

Well, When I say along the Rows I mean the output will be row index. I guess I was sloppy with that. Sorry. Basically what I’m after is something equivalent to MATLAB’s: [~, vMinRowIdx] = min(mA, [], 1); So basically vMinRowIdx will be a vector holding the row index of the minimum value in each …

[image] RoyiAvital: sum(mX[:, vMinIdx .== jj], dims = 2) It would be good if you could test your code to check that it runs. I’ve spent a couple of minutes trying to fix it so that it runs, changing mX to mA, setting values for jj, etc. But it just fails. Can you provide tested, runnable code…

I linked to the code which is actually running : function KMeansRunTime( matrixSize, mX ) # Assuming Samples are slong Columns (Rows are features) numClusters = Int64(max(round(matrixSize / 100), 1)); vClusterId = zeros(matrixSize); numIterations = 10; runTime = @elapsed begin…

How to convert CartesianIndex{N} values to Int64

General Usage

kristoffer.carlsson September 17, 2018, 4:10pm 2

Please read: make it easier to help you point 4 is applicable here.

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How to convert CartesianIndex{N} values to Int64

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