Publications by Vinayak Kamath
Data606-HomeWork-Chapter3-Probability
Dice rolls. (3.6, p. 92) If you roll a pair of fair dice, what is the probability of getting a sum of 1? Answer: 0; the minimum value with sum of two dice would 2 (1 on each). getting a sum of 5? Answer: 4/36 = 1/8. [ 4 combinations: 1+4 ; 2+3 ; 3+1 ; 4+1 ] getting a sum of 12? Answer: 1/36; the minimum value with sum of two dice would 12 [ 1...
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Data606 - Lab 3 - Probability
Hot Hands Basketball players who make several baskets in succession are described as having a hot hand. Fans and players have long believed in the hot hand phenomenon, which refutes the assumption that each shot is independent of the next. However, a 1985 paper by Gilovich, Vallone, and Tversky collected evidence that contradicted this belief and...
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Data607-Week03-Assignment-Character Manipulation And Date Processing
1. Using the 173 majors listed in fivethirtyeight.com’s College Majors dataset [https://fivethirtyeight.com/features/the-economic-guide-to-picking-a-college-major/], provide code that identifies the majors that contain either “DATA” or “STATISTICS”: theUrl <- "https://raw.githubusercontent.com/fivethirtyeight/data/master/college-majors/...
2186 sym R (3175 sym/25 pcs)
Data607-MajorAssignment-Tidyverse
An Example using TidyVerse packages - ggplot2 and dplyr and using tesla-stock-data-from-2010-to-2020 Data set from Kaggle [https://www.kaggle.com/timoboz/tesla-stock-data-from-2010-to-2020]: Pls load ggplot2 and dplyr package using install.packages(“ggplot2”) and install.packages(“dplyr”) Load the library and Read the data using readr: #...
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Data606-HomeWork-Chapter 2 - Summarizing Data
Stats scores. (2.33, p. 78) Below are the final exam scores of twenty introductory statistics students. 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 Create a box plot of the distribution of these scores. The five number summary provided below may be useful. Answer: The boxplot for the Scores distribution is as b...
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Introduction to R and RStudio - Data606 - Lab1
The goal of this lab is to introduce you to R and RStudio, which you’ll be using throughout the course both to learn the statistical concepts discussed in the texbook and also to analyze real data and come to informed conclusions. To straighten out which is which: R is the name of the programming language itself and RStudio is a convenient inte...
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R_BrdgWrkshp_Week3_Assignment_HTML
*** Data set “Forbes2000.csv” from http://vincentarelbundock.github.io/Rdatasets/ *** #library(readr) Forbes2000.data <-read.delim(file="Forbes2000.csv", sep=',') str(Forbes2000.data) ## 'data.frame': 2000 obs. of 9 variables: ## $ X : int 1 2 3 4 5 6 7 8 9 10 ... ## $ rank : int 1 2 3 4 5 6 7 8 9 10 ... ## $ n...
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R_BrdgWrkshp_Week2_HandsOn
Load the diamonds dataset, which is included with the ggplot2 package. Identify which variables in the diamond set are numeric, and which are catgorical (factors). library(ggplot2) str(diamonds) ## Classes 'tbl_df', 'tbl' and 'data.frame': 53940 obs. of 10 variables: ## $ carat : num 0.23 0.21 0.23 0.29 0.31 0.24 0.24 0.26 0.22 0.23 ......
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R_BrdgWrkshp_Week2_Assignment_HTML
Data sets: http://vincentarelbundock.github.io/Rdatasets/ (click on the csv index for a list): datasets.csv “Stat2Data”,“AppleStock”,“Daily Price and Volume of Apple Stock”,66,4,0,0,1,0,3, “https://raw.github.com/vincentarelbundock/Rdatasets/master/csv/Stat2Data/AppleStock.csv”, “https://raw.github.com/vincentarelbundock/Rdatase...
1619 sym R (12347 sym/44 pcs)
R_BrdgWrkshp_Week1_Assignment_HTML
1. Write a loop that calculates 12-factorial: –> Function to calculate factorial of a number passed as arguement get.factorial <- function(input.num = "0", ...) { if(is.integer(as.integer(input.num)) && input.num >= 1) { ret_fact<- 1 for (i in 1:input.num) ret_fact <- ret_fact * i }else { return ('Not a valid ...
597 sym R (1050 sym/12 pcs)