Informatics Practices
To extract row/column from a dataframe, ………… function may be used.
- row()
- column()
- loc()
- All of these
Python Pandas
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Answer
loc()
Reason — The loc() function is used to access row(s) and/or a combination of rows and columns from a DataFrame object.
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Related Questions
Which attribute is not used with DataFrame ?
- Size
- Type
- Empty
- Columns
To get the transpose of a dataframe D1, you can write …………… .
- D1.T
- D1.Transpose
- D1.Swap
- All of these
To display the 3rd, 4th and 5th columns from the 6th to 9th rows of a dataframe DF, you can write …………… .
- DF.loc[6:9, 3:5]
- DF.loc[6:10, 3:6]
- DF.iloc[6:10, 3:6]
- DF.iloc[6:9, 3:5]
To change the 5th column's value at 3rd row as 35 in dataframe DF, you can write …………… .
- DF[4, 6] = 35
- DF[3, 5] = 35
- DF.iat[4, 6] = 35
- DF.iat[3, 5] = 35