Questions tagged [train-test-split]
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Scaling a gene expression data generates NA values
I would like to analyze the prostate gene expression data which has a link named 12859_2005_967_MOESM4_ESM.tgz in the site here.
In a paper I read, the author scaled the predictors in the training set ...
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Should outlier detected before or after train test split
Outliers are usually first detected using Boxplot, then the suspicious observations may be sent to experts for justification - justify whether they are true outliers (contaminated data) or leverage ...
