Fig. 7
From: DC electrical stimulation enhances proliferation and differentiation on N2a and MC3T3 cell lines
Neurite angles of stimulated cells (ES) and non-stimulated cells (control). Two histograms with different bin numbers are superposed in each axis, one with color and another without. The colored histogram has a bin number of 20 (groups of 9°) and acts as a low-pass filter for the distribution, whilst the uncolored histogram has 180 bins (every degree). Values of the uncolored histogram have been scaled by 5, to enhance visibility. A red hardcoded spline has been added to emphasize the shape of the distribution on the ES histogram