Tag: Programming

Download project data and import it into your analysis software(R programming). Run some summary statistics (number of observations, variables, missing values, etc.) and write a brief summary report of your initial findings. Anything you see that is interesting? Anything you want to explore further?

This is the link to the project data: https://we.tl/t-agCdom2iF2

Binary Search Tree

Using a binary search tree, you are tasked with building a dictionary program which you can store a word with its definition. Each node of the tree will contain the word and definition. The word is what will be used as the key to sort our data.

The dictionary should allow you to search for a word. If the word exist then the definition will display. You can also add words to the dictionary. For testing you should be able to display the current word list.

The dictionary will populate from a data file and new words will be saved to the file as well.

We are still covering Binary trees in class, but we have covered enough to get you started.

Finish the provided specifications for the Word and WordStack classes. The WordStack Class will act as a stack of Word objects. You must implement your own linked list for this assignment. Additionally create a driver to demonstrate the features of the WordStack class. The driver will read and write files to reverse all of the words of some input file.

Finish the Word class implementation in Word.cpp

Use the provided Word.h. Complete the implementation of the Word class in a Word.cpp file.

Finish the WordStack class in WordStack.cpp

Use the provided WordStack.h. Complete the implementation of the WordStack class in a WordStack.cpp file.

Create a WordStack class with pop, push, and isEmpty.

This Wordstack holds Word objects using a linked list of Nodes.

The Stack class has the following methods:

void push(Word)

push accepts a Word object, then inserts it into the stack of Words

Word Pop()

The pop()method takes no arguments and returns the Word object from the top of the stack. This method also discards the top element from the stack. Throw an exception when popping from an empty stack.

bool isEmpty()

isEmpty returns True when the stack is empty. Return false when not empty.

Driver

Create a simple text file with some arbitrary text of your choice. This is the program input file.

Next, write a driver program to read an input file, save the words in a new file in reverse order. Do this using the WordStack class.

The Driver should do the following at minimum.

• Open the input text file and read the contents into a WordStack.This must insert one word at a time into the stack.
• Close the input file.
• Open a new file for program output. This file begins empty.
• The program should then pop all of the Words from the stack and save each word into an output file. This output file storesall of the words that were popped from the stack.
• Close the output file.
• The order of the words saved in the output file should be the reverse of their order in the input file.

Class Source Code

The classes must be defined in a header file with no implementation. Additionally, create an implementation file with all of the implementation code. See the provided Die class example for an example of this format.

.—————————————

word.h

#ifndef WORD_H_

#define WORD_H_

#include <string>;



class Word

{

private:

	std::string word;



public:

	Word();

	std::string getWord() const;

	void setWord(std::string);

};



#endif



---------------------------

wordStack.h

#ifndef WORDSTACK_H_

#define WORDSTACK_H_



#include "Word.h"



class WordStack{

private:

    struct StackNode

    {

        Word word;

        StackNode *next;

    };



    StackNode *top;



public:

    void push(Word);

    Word pop();

    bool isEmpty() const;

};



#endif /* WORDSTACK_H_ */

Introduction:

Your task is to find a data set on DATASF that is of particular interest to you. Once you have decided on a data set, I would like you to write up a report that presents the data, both with narrative and supporting visualizations.

Key Points to Address:

1. Your opening paragraph(s) should introduce the data, discuss why you chose that particular data set, and what you hope to accomplish while investigating the data.

2. The format of the final document should read like a report. There should be no R code in the output file (I should be able to see all of that in the .Rmd file).

3. Your document must include at least 4 visualizations. These visualizations must tie into your narrative (and be supportive).

4. There is no particular length requirement other than it must be long enough to present your thoughts, ideas, and conclusions.

Assessment, you will be graded on:

1. The readability and formatting of the report.

2. The overall presentation of your arguments and how you support them.

3. The quality of your visualizations.

In the MinnLand dataset in the alr4 package, fit two possible models with log(acrePrice) or sqrt(acrePrice) as the response, use year as a factor as well. I want to better understand land prices and the drivers. Use methods to develop two possible candidate models and compare them using

#5 Fold Cross Validation

#10 Fold Cross Validation

#Random Splitting with 1000 splits.

I only want to use parallel computing where you can/need, and function writing where you can/need because there are 18,700 observations. Before starting this analysis remove ALL NA’s from the data using na.omit(MinnLand). In each of the above cases comment on the models you would select and how you came about that decision. I’m studying insights it may have on the land prices in Minnesota over this time frame.

I will need a pseudocode for this problem (attachment). it requires to use loops. it also requires (input, processing, output) diagram as well as deck checking. i will provide slides on how my teacher likes it. i will give an example prompt from my previous work. no need to code. just pseudo!

I need help with this paper. This is a short paper about a machine learning project proposal. This should be around 12 pages including overview and citation pages. I attached a template to be used for your convenience. The due date is May 24th. Please follow the rubric provided in the document.

1) Install SQL Express Management Studio 2014 from the following link:

https://www.microsoft.com/en-us/download/details.aspx?id=42299

2) Recreate the HistoricalEvents and Movies databases using the files found in the folder “Database backup”.

3) For each exercise listed below, create a separate .sql file with the solution. Compress all .sql in a single .zip archive

Exercises

• Historical Events DB

Exercise 3:

• Prove that there were 15 events in total which had a relation with Russia OR Germany

Exercise 4:

• Create a query to count the number of events per country which took place in the nineties

• Movies DB

Exercise 5:

• Create a list (Id_actor, Name_actor, Movie, NoOscars) of the top 3 movies based on the number of Oscars won.

Exercise 6:

• Choose your favorite actor/actresses and list all the movies in which he/she played and sort them by net profit.

I’m working on a Python question and need guidance to help me study.

1.What is a function inPython?

2.Where are functions stored in Python? Be careful here. There are some subtledetails.

3.How do you define a function inPython?

4.How do you end a function inPython?

5.What does variable scope mean when it concerns functions? Will require a number of sentences.

6.How can I get a variable to be “seen” across all functions including themainprogram?

7.Can I have the same named variable, say X, have different values in differentfunctions?