Dataframes R Studio

The R environment has some ready-made datasets that you can see with

function data ().


1. Build a dataframe containing the following columns for the 50 US states

(vectors): state name, population, area (name, pop, area). Its lines

dataframe must not have names. The column with the names of the states should not

to have the factor structure. Use the stacked data sets [url removed, login to view] and


2. Build a function called popdens that accepts as input two

numbers corresponding to the population and area of ​​an area, and return

as a result, the population density for this region.

3. Add an extra column to the dataframe of query 1 with a density name of

contains the population density for each state. Use for calculation

of the density of the function of question 2.

4. Add an extra column to the dataframe of query 1 with a percentage name of

contains the percentage of the population of each state in relation to the total

US population.

5. Add an extra column to the dataframe of query 1 with div name

contains the geographical area owned by each state. Use the ready

[url removed, login to view] data set. This new column must have the factor structure.

6. Construct the frequency table for geographic categories

apartments. Then, based on the frequency table, build one

pie chart. The chart must have a general title and use it

colors of the rainbow.

7. Create a new dataframe that contains the same data as the previous one, but

sorted in descending order of the population density column.

8. Save the new dataframe to a file called usa.csv. The file must be

contains the column names as headings, but not the names for the lines. The

values ​​on each line must be separated by the semicolon (;) character.

Compétences : Langage de programmation R

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Concernant l'employeur :
( 60 commentaires ) Thessaloniki, Kalamaria, Greece

Nº du projet : #15654898

8 freelance font une offre moyenne de $35 pour ce travail


I have more than 4 years of experience as a data scientist and analytics professional. I have excellent coding skills in R and Python. I can finish the task you have mentioned in an hour and comment the codes for your Plus

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(24 Commentaires)

Greetings sir, i can help you and your 100% satisfaction is assured if you allow me to serve. I can do this task as per your requirement I have more than 5 years of experience with excellent knowledge in R Progra Plus

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(12 Commentaires)

After reading your problem statement and being a data scientist i have a write expertise to complete your questions mentioned above using R in RStudio even more than that i can also help you with machine learning and s Plus

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(17 Commentaires)

Hello! I am Tanya from Ukraine.
 I have done more than 50 works in R for another clients (UpWork and Freelancer). 
I've got 9 courses of Data science specialization at Coursera (Data Science Tools, R programming Plus

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Hello, I am Prajwal Bhatt, a final year undergraduate student at IIT Roorkee. I am a creative, flexible and focused individual who is passionate about Data Science, Natural Language Processing and the entire Analyti Plus

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(16 Commentaires)

Hello, how are you? I have read the details provided, but please contact me so that we can discuss more on the project. I don't outsource like most people do ensuring quality work on time

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This is a simple task to created a data frame based on existing data, and I can be return R code that produces a csv file within 24 hours.

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i have worked on a similar project and I know what exactly you [login to view URL] project accepts data, does some basic calculations and stores the results in the same data frame. this data frame is manipulated again and stored Plus

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