Publications by Dominika Markowska-Desvallons
Data 607 - Project 1
Reading data library(stringr) library(knitr) tournament <- read.delim("https://raw.githubusercontent.com/hrensimin05/Data_607/master/tournamentinfo.txt") head(tournament) ## X......................................................................................... ## 1 Pair | Player Name |Total|Round|Round|Round|Round|R...
82 sym R (5681 sym/18 pcs)
Data 606 - Lab 4
In this lab, you’ll investigate the probability distribution that is most central to statistics: the normal distribution. If you are confident that your data are nearly normal, that opens the door to many powerful statistical methods. Here we’ll use the graphical tools of R to assess the normality of our data and also learn how to generate ra...
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Data 607 - HW7
Assignment – Working with XML and JSON in R library(dplyr) ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ## ## filter, lag ## The following objects are masked from 'package:base': ## ## intersect, setdiff, setequal, union library(RCurl) library(tidyverse) ## -- Attaching packages ---...
873 sym R (2876 sym/30 pcs)
Data 606 - lab6
Getting Started Load packages In this lab, we will explore and visualize the data using the tidyverse suite of packages, and perform statistical inference using infer. The data can be found in the companion package for OpenIntro resources, openintro. Let’s load the packages. library(tidyverse) library(openintro) library(infer) set.seed(1254...
9935 sym R (3287 sym/18 pcs)
Hw9 Data 607
Assigment Your task is to choose one of the New York Times APIs, construct an interface in R to read in the JSON data, and transform it into an R DataFrame. calling API and storing data api_key <- "aFZgnziHlI2ihJtbCbFnBJnOqOHLHqgU" baseurl <- "https://api.nytimes.com/svc/books/v3/lists.json" list = list( `api-key`=api_key, list="hardcover-fict...
255 sym R (1052 sym/7 pcs)
Data 606- Project Proposal
Data Preparation happiness<-read.csv("https://raw.githubusercontent.com/hrensimin05/Cuny_DataScience/master/2019.csv") #there are 156 observations and 9 variables happy<-data.frame(happiness) head(happy) ## Overall.rank Country.or.region Score GDP.per.capita Social.support ## 1 1 Finland 7.769 1.340 1...
1819 sym R (3605 sym/12 pcs) 2 img
Final Project - Data 606
World Happiness Report The World Happiness Report is a landmark survey of the state of global happiness. The report continues to gain global recognition as governments, organizations and civil society increasingly use happiness indicators to inform their policy-making decisions. Leading experts across fields – economics, psychology, survey anal...
2786 sym R (7189 sym/26 pcs) 5 img
Data 606 presentation
CLASS PRESENTATION (a) What are the hypotheses for evaluating whether poverty percentage is a significant predictor of murder rate? H0 = The poverty percentage is NOT a significant predictor of murder rate HA = The poverty percentage is a significant predictor of murder rate. formal expression H0 : β1 = 0 HA : β1 ≠ 0 (b) State the concl...
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Data 606 - LAB 9
Grading the professor Many college courses conclude by giving students the opportunity to evaluate the course and the instructor anonymously. However, the use of these student evaluations as an indicator of course quality and teaching effectiveness is often criticized because these measures may reflect the influence of non-teaching related charac...
13929 sym R (11641 sym/40 pcs) 16 img
Data 606 - Lab 8
The Human Freedom Index is a report that attempts to summarize the idea of “freedom” through a bunch of different variables for many countries around the globe. It serves as a rough objective measure for the relationships between the different types of freedom - whether it’s political, religious, economical or personal freedom - and other s...
11591 sym R (17530 sym/41 pcs) 9 img