Error in function when applying If statement for pandas

Asked Jun 21 '20 at 13:55

Active Jun 21 '20 at 13:59

Viewed 17 times

I have created a function as below. This function takes series (a column in dataframe) as parameter and if column values is greater than zero calculates a score (1+column value) else 1/(1-column value).

def znm_score(return_series: pd.Series):
    if (return_series > 0):
        m_score = 1 + return_series
    else:
        m_score = 1/(1-return_series)
    return pd.DataFrame({
        "M-Score": m_score
    })

when I call this function

znm_score(restaurants_df["z_score"])
restaurants_df.head()

Error:

"The truth value of a Series is ambiguous. 
Use a.empty, a.bool(), a.item(), a.any() or a.all()."

edited Jun 21 '20 at 13:59

ywbaek

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asked Jun 21 '20 at 13:55

Ricky Land

1

It seems you need `(return_series > 0).any()` – jezrael Jun 21 '20 at 13:57
It gives column values as none although i am passing values to "return_series" i.e. z_score = [0.72, 0.98....] – Ricky Land Jun 21 '20 at 14:22

Error in function when applying If statement for pandas

0 Answers0