Fig. 4From: LogD7.4 prediction enhanced by transferring knowledge from chromatographic retention time, microscopic pKa and logPScatter plot of experimental logP and logD values in the dataset. Spearman’s correlation coefficient values can range from − 1 to 1, where values of 1, 0, and − 1 indicate perfect positive correlation, no correlation, and perfect negative correlation, respectivelyBack to article page