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CoDaCoRe variable selection for the first (most explanatory) log-ratio on the Crohn disease data (Rivera-Pinto et al., 2018). For each of 10 independent bootstraps of the training set (80% of the data randomly sampled with stratification by case–control), we show which variables are selected in the numerator (blue) and denominator (orange) of the balance. CoDaCoRe learns remarkably consistent log-ratios across independent training sets
