Python Forum
Pandas dataframe: calculate metrics by year
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Pandas dataframe: calculate metrics by year
#2
This will work!

import numpy as np
import pandas as pd
from sklearn.metrics import r2_score, mean_squared_error

def r2_rmse( g ):
    r2 = r2_score( g['Actual'], g['Predicted'] )
    rmse = np.sqrt( mean_squared_error( g['Actual'], g['Predicted'] ) )
    return pd.Series( dict(  r2 = r2, rmse = rmse ) )

your_df.groupby( 'Type' ).apply( r2_rmse ).reset_index()
Reply


Messages In This Thread
RE: Pandas dataframe: calculate metrics by year - by mcva - Mar-02-2022, 08:22 AM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Add NER output to pandas dataframe dg3000 0 273 Apr-22-2024, 08:14 PM
Last Post: dg3000
  HTML Decoder pandas dataframe column mbrown009 3 1,141 Sep-29-2023, 05:56 PM
Last Post: deanhystad
  Use pandas to obtain cartesian product between a dataframe of int and equations? haihal 0 1,169 Jan-06-2023, 10:53 PM
Last Post: haihal
  Pandas Dataframe Filtering based on rows mvdlm 0 1,495 Apr-02-2022, 06:39 PM
Last Post: mvdlm
  Pandas dataframe comparing anto5 0 1,309 Jan-30-2022, 10:21 AM
Last Post: anto5
  PANDAS: DataFrame | Replace and others questions moduki1 2 1,873 Jan-10-2022, 07:19 PM
Last Post: moduki1
  PANDAS: DataFrame | Saving the wrong value moduki1 0 1,598 Jan-10-2022, 04:42 PM
Last Post: moduki1
  update values in one dataframe based on another dataframe - Pandas iliasb 2 9,481 Aug-14-2021, 12:38 PM
Last Post: jefsummers
  empty row in pandas dataframe rwahdan 3 2,531 Jun-22-2021, 07:57 PM
Last Post: snippsat
  iretate over columns in df and calculate euclidean distance with one column in pandas Pit292 0 3,355 May-09-2021, 06:46 PM
Last Post: Pit292

Forum Jump:

User Panel Messages

Announcements
Announcement #1 8/1/2020
Announcement #2 8/2/2020
Announcement #3 8/6/2020