pyfolio/utils.py
def vectorize(func):
    """
    Decorator so that functions can be written to work on Series but
    may still be called with DataFrames.
    """

    def wrapper(df, *args, **kwargs):
        if df.ndim == 1:
            return func(df, *args, **kwargs)
        elif df.ndim == 2:
            return df.apply(func, *args, **kwargs)

    return wrapper
def vectorize(func):
    """
    Decorator so that functions can be written to work on Series but
    may still be called with DataFrames.
    """

    def wrapper(df, *args, **kwargs):
        if df.ndim == 1:
            return func(df, *args, **kwargs)
        elif df.ndim == 2:
            return df.apply(func, *args, **kwargs)

    return wrapper
def vectorize ( func ) : def wrapper ( df , * args , * * kwargs ) : if df . ndim == 1 : return func ( df , * args , * * kwargs ) elif df . ndim == 2 : return df . apply ( func , * args , * * kwargs ) return wrapper
Decorator so that functions can be written to work on Series but
    may still be called with DataFrames.
Decorator so that functions can be written to work on Series but may still be called with DataFrames .