A fast customizable function for locating and measuring the peaks in noisy time-series signals. Adjustable parameters allow discrimination of \"real\" signal peaks from noise and background. Determines the position, height, and width of each peak by least-squares curve-fitting.-A fast customizable function for locating and measuring the peaks in noisy time-series si gnals. Adjustable parameters allow discrimin ation of the "real" signal peaks from noise and back ground. Determines the position, height, and width of each peak by least-squares curve-f itting.