Figure 4
The graph shows a horizontal x-axis and a vertical y-axis intersecting at the origin. The x-axis ranges from 0.00 to 1 in increments of 0.25 units, and the y-axis rises upward with a labeled value of 1 at the top. A continuous horizontal line is drawn at y equals 1. From x equals 0.00 to x equals 1, a repeating zigzag pattern of straight diagonal lines forms adjacent triangular shapes that pass through (0.00, 0), (0.25, 1), (0.5, 0), (0.75, 1), and (1, 0). From x equals 0.00 to x equals 1, another repeating zigzag pattern of straight diagonal lines forms adjacent triangular shapes that pass through (0.00, 1), (0.25, 0), (0.5, 1), (0.75, 0), and (1, 1). rise to y equals 1 and fall back to y equals 0. At x equals 0.25, 0.5, 0.75, and 1, vertical dashed lines extend upward from the x-axis to the horizontal line at y equals 1, marking the peaks of the triangular patterns.Triangular fuzzy membership function. Source: Adopted from Habibi et al. (2015)