Recent questions tagged dataframe / Ask Data Science

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0 0 answers

550

550 views

How do I know which encoder to use to convert from categorical variables to numerical?

So say I have a column with categorical data like different styles of temperature: 'Lukewarm', 'Hot', 'Scalding', 'Cold', 'Frostbite',... etc.I know that we can use pd.ge...

Anas

150 points

asked Nov 28, 2021

1 1 vote

1 answers 1 answer

826

826 views

Terminology clarification in Spark

I have a hard time distinguishing terminologies of SparkSQL. While SparkSQL are quite flexible in terms of abstraction layers, its really difficult for beginner to naviga...

kakalotka

170 points

asked Feb 6, 2021

1 1 vote

1 answers 1 answer

1.5k

1.5k views

How to filter a dataframe?

Consider the Pandas DataDrame df below. Filter it appropriately so that it outputs the shown results.gh owner language repo stars 0 pandas-dev python pandas 17800 1 tidyv...

interview

1.4k points

asked Dec 24, 2019

0 0 votes

1 1 answer

1.7k

1.7k views

How to reshape in pandas dataframe?

Dataframe looks like belowI have dataframe like above. which I want to a~t reshape (a~t, 1)I want to reshape dataframe like below ( b~t column is go to under the a column...

kmr1994

210 points

asked Apr 5, 2019