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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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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 statements to change 4th and 8th elements of this array to 5 and 87. 2. 1 mark for creation of array with 9 ones. ½ mark each for updating values. import numpy as np. a=np.ones(9) print(a) a[3]=5. ... df1=pd.DataFrame(d1) Write the python statement using suitable functions among (apply/ apply_map / …
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If you want to adjust a size, it can be done using figsize = (10,10) [Note that values (10,10) in the blanket are the width and height values] Make a graph bigger and smaller. We can plot a graph based on a group of data using .groupby().
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sort_values sorts in ascending order, but obviously, you can change this and do descending order as well: zoo.sort_values(by = ['water_need'], ascending = False) Try the above Python code.
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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.
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4 python manage.py startapp abc (1 mark for correct answer) an alternate key. OR. UPDATE command is used to change or modify data in existing table (1 mark for correct answer) A connection in MySQL is the session between an application and database system.
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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. None of the above. 1. Ans : Option C (1 mark for correct Option C ) ... Write a python code to create a dataframe as per given structure in the figure. Country. Rank. 0. Russia. 121. 1. Colombia. 40. 2. Chile. 100. 3. ... Write mysql command ...
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Write statements to change 4th and 8th elements of this array to 5 and 87. 2. g) Write a NumPy program to find the number of elements of an array, length of one array element in bytes and total bytes consumed by the elements. 3. Answer the following questions. 2. a) _ method in Pandas can be used to change the label of rows and columns of a ...
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Change values in dataframe python