FIGURE 1.
Comparison of dichotomization methods. (A) The histogram of the Pcdhac2 transcript numbers in the somatosensory neurons. The dichotomization yielded the following thresholds: 2.11 (GTME), 6.28 (FM), and 20.21 (VRS) TPM. The fitted probability density function (pdf) is a mixture of normal distributions, with an antimode at 1.37. The pdf is integrated piecewise according to the logarithmic bins. The thumbnail plot is a version of the main plot with a linearly scaled x-axis. (B) Pair-wise scatter plots showing the ON cell frequencies of each gene in the somatosensory neuron dataset with a bimodality coefficient greater than 0.55, after dichotomization with different methods. (C) The Spearman rank correlation of the ON cell frequencies shown in (B).