How to drop rows (or subset other rows) based on values in lists in pandas? Create mutually exclusive subsets of dfs Question: How to drop rows which have at least 1 element from both the lists? Looking for something iterative over more than 100 columns. Minimal example with 3 columns is: list1 = ["abc1", "def"] …
Subset rows based on multiple iterative columns in Pandas Question: I need to subset rows of df based on several columns (c1 through c100 columns) which have strings. Subset rows which equal a particular value for any of the 100 columns. Minimal example with 3 columns is: df = pd.DataFrame({"": [0,1,2,3,4,5,6,7,8], "c1": ["abc1", "", "dfg", …
Subsetting columns and counting the 1's (TURF analysis?) Question: The aim is to count the corresponding 1’s in the rows of each subset (>2) of columns: 0 2 4 0 0 1 0 1 1 1 1 2 1 0 0 3 1 1 0 4 1 0 0 … … … … In above …
How to subset pandas df based on two columns? Question: I need to subset rows of df based on two columns (c1 and c2 columns) which have strings. I need to be able to return rows where one value in c1 is associated with only 2 different values in c2. col4-6 are irrelevant for subsetting …
Select a subset of a dataframe based on conditions : category and note Question: I am trying to Select a subset of a dataframe where following conditions are satisfied: for same category keep only the row with highest note, if category=na keep the row Here’s my dataframe example : The expected result: What is the …
Create new dataframe by splitting on year pandas Question: I wish to create new dataframes, with the logic in which they are split is based on year. Data df id type Q1 22 Q2 22 Q3 22 Q1 23 Q2 23 Q3 23 aa hi 0.2 0.8 0.3 1.1 2.1 0.4 aa ok 0.2 0.7 …
How do I select certain columns from Python? Question: I must be doing a very basic mistake. I am trying to select only certain columns from a dataframe, dropping the na rows. I also am supposed to reset the row index after removing the rows. This is what my dataset looks like CRIM ZN INDUS …
Finding multiple supersets and subsets for values in a column with python Question: I am trying to find supersets and subsets for values included in a column(here for letter column) from an excel file. The data looks like this: id letter 1 A, B, D, E, F 2 B, C 3 B 4 D, B …
issubset method different than subSet in superSet – Error in Python3.x Question: Why issubset method of sets in python3.x don’t return the same than subSet in superSet ? logically is correctly but the console return me unexpected result works fine with shorts sets but large sets the (subSet in superSet) make mistakes def isStrictSuperset(superSet, subSet): …
Subsetting dataframe by same values in two columns Question: I have a dataframe that looks like below: code_1 code_2 a1 a1 a2 a1 b1 b2 b3 b3 What I want to do here is that I want to subset the dataframe by selecting the rows that have same values in ‘code_1’ and ‘code_2’ The final …
