Recent questions tagged Pandas

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Q: How do I get the row count of a pandas DataFrame?

I'm trying to get the number of rows of dataframe df with Pandas, and here is my code. Method 1: total_rows ... What am I doing wrong? Select the correct answer from above options...

asked Jan 27, 2022 in Education by JackTerrance

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Q: Pandas index column title or name

How do I get the index column name in python pandas? Here's an example dataframe: Index Title Column 1 Apples 1 ... how to do this? Select the correct answer from above options...

asked Jan 27, 2022 in Education by JackTerrance

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Q: count the frequency that a value occurs in a dataframe column

I have a dataset |category| cat a cat b cat a I'd like to be able to return something like (showing unique values ... cat a 2 cat b 1 Select the correct answer from above options...

asked Jan 27, 2022 in Education by JackTerrance

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Q: grouping rows in list in pandas groupby

I have a pandas data frame like: a b A 1 A 2 B 5 B 5 B 4 C 6 I want to group by the ... do something like this using pandas groupby? Select the correct answer from above options...

asked Jan 26, 2022 in Education by JackTerrance

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Q: Get list from pandas DataFrame column headers

I want to get a list of the column headers from a pandas DataFrame. The DataFrame will come from user input so I don ... 'gdp', 'cap'] Select the correct answer from above options...

asked Jan 26, 2022 in Education by JackTerrance

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Q: ValueError: DataFrame constructor not properly called! with pandas

def multiple_dfs(xyz_file, sheet, *args): row=2 writer = pd.ExcelWriter(xyz_file, engine='openpyxl') df = pd. ... help me over this? Select the correct answer from above options...

asked Jan 23, 2022 in Education by JackTerrance

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Q: How to split data into 3 sets (train, validation and test)?

I wish to divide pandas dataframe to 3 separate sets. I know by using train_test_split from sklearn.cross_validation, ... ? kindly help Select the correct answer from above options...

asked Jan 22, 2022 in Education by JackTerrance

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Q: Select rows from a DataFrame based on values in a column in pandas

I want to select rows from a DataFrame based on values in some column in pandas, How can I do it? I ... WHERE column_name = some_value Select the correct answer from above options...

asked Jan 22, 2022 in Education by JackTerrance

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Q: Renaming columns in pandas

I created a dataframe and column labels in pandas and I need to edit in order to replace the original column ... names. Please help? Select the correct answer from above options...

asked Jan 22, 2022 in Education by JackTerrance

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Q: What is the difference between size and count in pandas?

What exactly is the difference between groupby("x").count and groupby("x").size in Pandas? Select the correct answer from above options...

asked Jan 21, 2022 in Education by JackTerrance