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jdonaldson / rtsne

An R package for t-SNE (t-Distributed Stochastic Neighbor Embedding)
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different results for same data in R 3.4.2 vs. R 3.5.3 #7

Open pmainker opened 4 years ago

pmainker commented 4 years ago

Hi I executed tsne using same parameters in RStudio [3.4.2] and Alteryx R module [3.5.3] and got very different results. Any thoughts? Both have same tsne package version. no other packages are involved in data manipulation, it is a straight read in, apply tsNE,write out.

wleoncio commented 1 year ago

If you're leaving initial_config = NULL (the default), its values are randomly drawn from a normal distribution. I'm not familiar with Alteryx R modules, but R 3.5.0 introduced some changes to its random number generator which could explain the differring results (more info here). In any case, the results should be stochastically equivalent.