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(ii).Sorting means arranging the contents in ascending and descending order , contents of dataframe also be sorted according to values of row and columns.there are two to sort in Pandas(dataframe) 1. By value : using sort_values() function
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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)
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pandas. definition and reference. pandas stands for . pan. el . da. ta . s. ystem. It’s a convenient and powerful system for handling large, complicated data sets. (The author pronounces it “pan-duss”.) pandas cheat sheet. Data frames. rectangular data structure, looks a lot like an array.
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A DataFrame is similar to a fixed-size dict because you can use the index labels to get and set values.
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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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Q.1 Name some common data structures of python’s pandas library. Q.2 Given a list L=[3,4,5] and an ndarray N having elements 3,4,5. ... Q.2 Name the functions you will use to create a(i) line chart,(ii) bar chart,(iii) scatter chart. Q.3 Find output of the following:- ... A line chart from the 1990 and 2000 columns of dataframe df1. Create a ...
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Write code to create an ndarray having 9 ones in it. Write statements to change 4th and 8th elements of this array to 5 and 87 ... _ method in Pandas can be used to change the label of rows and columns of a Series or Dataframe : replace() rename() reindex() none of the above. 1. b) Rewrite the following python statement ... Consider the ...
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Slice the needed dataframe columns (from step-1) and apply summarization functions one at a time using ‘groupby’ pandas method. Pass the indexes as a list to the groupby function. For eg: if count, sum and weighted average are values to be calculated - create a data type of dtype for each of the 3 …
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a pandas dataframe is a two (or more) dimensional data structure – basically a table with rows and columns. The columns have names and the rows have indexes. An example of Pandas …
create data frame in pandas

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Create a pandas series from a dictionary of values and an ndarray Given a Series, print all the elements that are above the 75th percentile. Create a Data Frame quarterly sales where each row contains the item category, item name, and expenditure.
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Create pandas dataframe from columns