features.df_functions

Functions

convert_time(data[, column_name])	Formats the time column to length of 4.
str_pad(time_stamp)	Pads the begining of string with 0 until length 4 is reached.

features.df_functions.convert_time(data, column_name='Time Occurred')

Formats the time column to length of 4.

Pads the begining of Time stamp to length of 4. Converts column_name to string. Creates a new column with full stamp as a timestamp index.

Parameters:

• data (pandas.DataFrame) – dataframe to modify
• column_name (string (optional)) – column containing hourly data

Returns:

data – Original dataframe with Chicago crime time stamps as DateTimeIndex.

Return type:

pandas.DataFrame

features.df_functions.str_pad(time_stamp)

Pads the begining of string with 0 until length 4 is reached.

If string is less than four characters, than a 0 is appended to head of string. This is done until string is at least 4 digits long.

Parameters:time_stamp (string) – string for Returns:new_string – padded string or original string Return type:string