Gaoxiang Chen

About Me

[I am Gaoxiang (Gao) Chen, who loves sports and food.]

Research Interests And/Or Favorite Three Topics Covered In Other Classes

• Retail Return
• Recommendation System
• Business Analytics

XML to xarray Challenge

• Explanation The dataset is imported from the xml_to_xarray module, which likely parses XML data into an xarray Dataset. The dataset is then converted to a Pandas DataFrame using .to_dataframe(), which allows for easy manipulation and querying.
• top 3 from xml_to_xarray import ds import xarray as xr

def get_top_3(ds): df = ds.to_dataframe().reset_index() top_3 = df.groupby([“trackID”, “trackName”, “raceDate”, “raceNumber”]).apply( lambda x: x.nsmallest(3, “finishingPosition”) ).reset_index(drop=True) return top_3

top_3_horses = get_top_3(ds) print(top_3_horses)

• Sample race 10 27 DEL DELAWARE PARK 2023-07-08 10 Dialherup … 1.0 0.9 38000.0 550.0 FT 28 DEL DELAWARE PARK 2023-07-08 10 Mo Traffic … 2.0 1.8 38000.0 550.0 FT 29 DEL DELAWARE PARK 2023-07-08 10 Kilmaley … 3.0 5.5 38000.0 550.0 FT