You can retrieve the value of a data frame by referencing another data frame by using the indexing operator ([ ]) or the loc function. Here's an example:
Let's say you have two data frames:
df1:
| | name | age | |---|--------|-----| | 0 | Alice | 25 | | 1 | Bob | 30 | | 2 | Charlie| 35 |
df2:
| | index | |---|-------| | 0 | 2 | | 1 | 1 | | 2 | 0 |
To retrieve the age of a person in df1 using the index from df2, you can use the following code:
# Using indexing operator
df1["age"][df2["index"][0]]
# Using loc function
df1.loc[df2["index"][0], "age"]
Both methods will retrieve the age of the person with index 2 (Charlie), which is 35.
Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss
Asked: 2023-05-10 09:18:44 +0000
Seen: 20 times
Last updated: May 10 '23
What is the concept of a Type Theory that includes an Any/Variant data type?
How can data be summarized and plotted using Dplyr within a function defined by the user?
How can one obtain live data from interactive broker through API?
What is the method to implement pagination for Firestore data in Flutter using ListView?
What is the reason for the submitted Django form's value being null in the database?
How can we create summary tables by using nested tibbles?
What is the process of moving information from one tab to another in Excel by transposing it?
What does "coxphw undefined columns selected" mean?
Is it not possible to change the data type of an array from 'O' to 'float64'?