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Python | Pandas dataframe.rfloordiv()

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  • Last Updated : 09 Sep, 2021

Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages and makes importing and analyzing data much easier.

Pandas dataframe.rfloordiv() function is used for Integer division of dataframe and other, element-wise (binary operator rfloordiv). This function is essentially same as doing other // dataframe but with a support to substitute for missing data in one of the inputs. 

Syntax: DataFrame.rfloordiv(other, axis=’columns’, level=None, fill_value=None)
Parameters : 
other : Series, DataFrame, or constant 
axis : For Series input, axis to match Series index on 
level : Broadcast across a level, matching Index values on the passed MultiIndex level 
fill_value : Fill existing missing (NaN) values, and any new element needed for successful DataFrame alignment, with this value before computation. If data in both corresponding DataFrame locations is missing the result will be missing.
Returns : result : DataFrame 
 

Example #1: Use rfloordiv() function to find the integer division of a series with a dataframe. 

Python3




# importing pandas as pd
import pandas as pd
 
# Creating the dataframe
df = pd.DataFrame({"A":[1, 5, 3, 4, 2],
                   "B":[3, 2, 4, 3, 4],
                   "C":[2, 2, 7, 3, 4],
                   "D":[4, 3, 6, 12, 7]},
                   index =["A1", "A2", "A3", "A4", "A5"])
 
# Print the dataframe
df


Let’s create the series 

Python3




# importing pandas as pd
import pandas as pd
 
# Create the series
sr = pd.Series([12, 25, 64, 18],
     index =["A", "B", "C", "D"])
 
# Print the series
sr


Let’s use the dataframe.rfloordiv() function to find the integer division of the series with the dataframe. 

Python3




df.rfloordiv(sr, axis = 1)


Output : 

In the output, a dataframe has been returned, all the elements along the column axis in the dataframe divided the corresponding element in the series. 
 
Example #2: Use rfloordiv() function to perform floor division of one dataframe with other. 
Note : Here the input dataframe is divided by the dataframe that called the function dataframe.rfloordiv() 

Python3




# importing pandas as pd
import pandas as pd
 
# Creating the first dataframe
df1 = pd.DataFrame({"A":[1, 5, 3, 4, 2],
                    "B":[3, 2, 4, 3, 4],
                    "C":[2, 2, 7, 3, 4],
                    "D":[4, 3, 6, 12, 7]},
                    index =["A1", "A2", "A3", "A4", "A5"])
 
# Creating the second dataframe
df2 = pd.DataFrame({"A":[10, 11, 7, 8, 5],
                    "B":[21, 5, 32, 4, 6],
                    "C":[11, 21, 23, 7, 9],
                    "D":[1, 5, 3, 8, 6]},
                    index =["A1", "A2", "A3", "A4", "A5"])
 
# divide df2 by df1
df1.rfloordiv(df2)


Output : 

 


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