# Application of umap

**URL:** <https://discourse.julialang.org/t/application-of-umap/83925>\
**Category:** General Usage\
**Created:** [July 8, 2022, 1:21am UTC](https://discourse.julialang.org/t/application-of-umap/83925 "2022-07-08T01:21:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![JosieG](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/josieg/32/36221_2.png) [@JosieG](https://discourse.julialang.org/u/JosieG)\
**Post date:** [July 8, 2022, 1:21am UTC](https://discourse.julialang.org/t/application-of-umap/83925/1 "2022-07-08T01:21:32Z")

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Hi, I’m applying umap on my dataset. The reference is [Updated Notebook with example of UMAP by davibarreira · Pull Request #44 · dillondaudert/UMAP.jl · GitHub](https://github.com/dillondaudert/UMAP.jl/pull/44/files#diff-b6d2e231b091067a52eb7c9a72c714cb1fbcefa134431ebc78514000d69a806a)  
and  
[UMAP.jl/PlotMNIST.ipynb at master · dillondaudert/UMAP.jl · GitHub](https://github.com/dillondaudert/UMAP.jl/blob/master/PlotMNIST.ipynb)

In my own code, I’m given a dictionary, and I convert the values of the dictionary to a matrix which is mat, and keys to a vector which is scid.

 ![Screen Shot 2022-07-07 at 9.30.12 PM](https://global.discourse-cdn.com/julialang/original/3X/5/8/58b6bfaebae64df76b0f586aabcf6d01690b1fdf.png)  
Right now I got the umap plot. If I want to divide the plot into 4 subplots. In each subplot I can get about 40 points. Then how do I know each point’s scid? Is there a way to get that?