bsweger

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)

schlady

import numpy as np

def peakdetect(y_axis, x_axis = None, lookahead = 500, delta = 0):
    """
    Converted from/based on a MATLAB script at http://billauer.co.il/peakdet.html
    
    Algorithm for detecting local maximas and minmias in a signal.
    Discovers peaks by searching for values which are surrounded by lower
    or larger values for maximas and minimas respectively