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...I am trying to optimize my logistic regression model by using bootstrap. I was previously using SAS for this kind of tasks, but I am now switching to R. My data frame consists of 5 columns and has 109 rows. Each row is a single record composed of the following values: Subject_name, numeric1, numeric2, numeric3 and outcome (yes or no). All three numerics are used to predict outcome using LR. In SAS I have written a macro, that was splitting the dataset, running LR on one half of data and making predictions on second half. Then it was collecting the equation coefficients from each iteration o...