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I am trying to group things together, using a self organising map (SOM), and U-matrix that look like the following things:

Fig 1: Self organising map (SOM) of light curves Fig 1: Self organising map (SOM) of light curves Fig 2: U-matrix for the above SOM Fig 2: U-matrix for the above SOM Fig 3: local maxima for above U-matrix Fig 3: local maxima for above U-matrix

Figure 3 is drawn using plt.imshow, and is made of a 2D array of values between 0 and 1 to define colour.

I want to interpolate and extrapolate the lines in Fig 3 to join up, allowing the graph to be separated into 6 regions. I am a bit stuck on how I might do this, and was wondering if anybody has any ideas? I'm not necessarily looking for code, I would mostly like an idea of how to get started.

For anyone interested in the background of what I am doing here are some bits and pieces, but this is not necessary for my question.

Max von Hippel
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Ollie
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  • Thanks for the help in formatting I wasn't allowed to doe that because of low karma, don't suppose you could also add the tag u-matrix as I'm not allowed? – Ollie Mar 16 '18 at 19:50

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