Write an R program that reads the text file into a data frame. Using that data frame, print the mean, median, mode, average deviation, and standard deviation. Be sure to state which output is which, such as “The mean is: 25”.
Write an R program that reads the text file into a data frame. Using that data frame, print the mean, median, mode, average deviation, and standard deviation. Be sure to state which output is which, such as “The mean is: 25”.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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- Write an R
program that reads the text file into a data frame. Using that data frame, print the mean, median, mode, average deviation, and standard deviation. Be sure to state which output is which, such as “The mean is: 25”. - Write a Java program that reads the text file. Using meaningful print statements, output the mean, median, mode, and standard deviation.
- Write a Python program that reads the text file. Using NumPy and SciPy modules, print the mean, median, mode, and standard deviation.
- Write an R program that:
- Reads the text file.
- Using that data, create a two-dimensional array that is 2,500 rows by 100 columns.
- Also create a three-dimensional array that is 2500 by 10 by 10.
- Slice the two-dimensional array using a starting column index of 2 and an ending column index of 5. Print the results of the arrays and slice.
- Write a Java program that:
- Reads the text file.
- Using that data, create a two-dimensional array that is 2,500 rows by 100 columns.
- Slice the two-dimensional array using a starting column index of 2 and an ending column index of 5. Print the results of the arrays and slice.
- Write a Python program that:
- Reads the text file using NumPy.
- Using that data, create a two-dimensional array that is 2,500 rows by 100 columns.
- Also create a three-dimensional array that is 2500 by 10 by 10.
- Slice the two-dimensional array using a starting index of 2, an ending index of 5, and steps by 10. Print the results of the arrays and slice.
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