Dataframe to list in python
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Write python statement to create a one –dimensional array using arrange() function .Elements will be in the range 10 to 30 with a step of 4 (including both 10 and 30). Reshape this one-dimensional array to two dimensional array of shape(2,3).
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Write a python code to create a dataframe using Series() function with appropriate headings such as Rollno, name and percentage from the list given below: [ 101,’Rajesh’, 75 ] , [ 103, ‘Yogesh’, 88 ] , [ 104, ‘Kapil’, 90 ] Ans import pandas as pd . Rolln=pd.Series([101,103,104]) ...
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Consider the following DataFrame. import pandas as pd. import numpy as np. d1={'Sal':[50000,60000,55000],'bonus':[3000,4000,5000]} df1=pd.DataFrame(d1) Write the python statement using suitable functions among (apply/ apply_map / sum() / mean() _____#To calculate square root of each element of data frame
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OF DATAFRAME AND NUMPY. Q1. What is Dataframe? Ans. _____ _____ _____. Q2.Which library of python contain the Dataframe. Ans._____. Q3.Name the function that is used to create the array of given shape filled with one.
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Q.4 Why does python change the datatype of a column as soon as it stores an empty value(NaN) even though it has all other values stored as integer. Q.5 Write code statements to list the following, from a dataframe namely sales. (a) List only columns Ítem’ and ‘Revenue’. (b) List rows from 3 to 7. ...
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(ii)Write the python code to read the contents of “first.csv” file consisting of data from a mysql table and print data of table on the screen in tabular form of table. Ans.import mysql.connector Mydb=mysql.connector.connect(host=”localhost”,user=”root”,passwd=”123”,
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A Global Database of Cholera. CS 4624 Multimedia, Hypertext & Information Access. Instructor: Dr. Edward A. Fox. Virginia Tech. Blacksburg, VA 24061. 6 May 2020 ...
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Let’s use the fillna() function, which basically finds and replaces all NaN values in our dataframe: Try the below Python code and see the results. zoo.merge(zoo_eats, how = 'left')
Easy and quick approach to develop complex pivot table ...
The new dataframe should align with the dataframe (3) indexes/levels. Get the index values for each of the levels and then form a tuple using zip method. Pass the tuple list to MultiIndex.from_tuples pandas method and build the index/dataframes. Concatenate the newly formed dataframes to dataframe (2) to form a consolidated dataframe (9) Sort ...
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Write a small python code to drop a row from dataframe labeled as 0. 1. e) What is the difference between Pivot() and Pivot_Table functions. 2. f) Write a panda program to read marks detail of Manasvi and Calculate sum of all marks . OR.
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