Nrthugu

I've done a few methods for python on my data frame. However I'm wondering why my function is not working correctly and why it does not seem to be applying correctly, here is my code followed by the corresponding screenshot:

def clean_belfast_data(df):

    df.dropna(subset=['Ward Name'], inplace=True)    

    df.reset_index(drop=True, inplace=True)

    #Perhaps I can't use inplace for this.

    df['Ward Name'].str.title().inplace=True

return df

Change

df['Ward Name'].str.title().inplace=True

to

df['Ward Name'] = df['Ward Name'].str.title()

The line df['Ward Name'].str.title().inplace=True is invalid python/pandas. I'm not sure why it runs without error, but it's not doing what you mean to do.

You have two thing need to change ,

df['Ward Name'].str.title().inplace=True
this is wrong .

also , do not forget to assign it back , and usually we do not using inplace = True to modify the original data directly

def clean_belfast_data(df1):

    df=df1.copy()

    df.dropna(subset=['Ward Name'], inplace=True)    

    df.reset_index(drop=True, inplace=True)

    #Perhaps I can't use inplace for this.

    df['Ward Name']=df['Ward Name'].str.title()

    return df



CrimeData_1=clean_belfast_data(crimeDate)

No need to create a function. Your operations are not stored, That's your problem.

 df['Ward Name']= df['Ward Name'].dropna()

Then

df['Ward Name'] = df['Ward Name'].str.title()