Publications by Nischal Bondalapati
ANLY 502 Lab 9
Question 1 Choose another traditional variable from mlb11 that you think might be a good predictor of runs. Produce a scatterplot of the two variables and fit a linear model. At a glance, does there seem to be a linear relationship? Answer plot(mlb11$hits, mlb11$runs) m2 = (lm( mlb11$runs ~ mlb11$hits)) abline(m2) summary(m2) ## ## Call: ## lm(...
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ANLY 502 Lab 6
Question 1 Using the following function (which was downloaded with the data set), plot all intervals. What proportion of your confidence intervals include the true population mean? Is this proportion exactly equal to the confidence level? If not, explain why. population <- ames$Gr.Liv.Area samp <- sample(population, 60) mean(samp) ## [1] 1513.083...
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ANLY 502 Lab 5
Question 1 So far, we have only focused on estimating the mean living area in homes in Ames. Now you'll try to estimate the mean home price. Take a random sample of size 50 from price. Using this sample, what is your best point estimate of the population mean? mean(sample(price, 50)) ## [1] 189814.4 Question 2 Since you have access to the populat...
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ANLY 502 Lab 4
Options A qqnorm(fdims che.de) qqline(fdims che.de) B qqnorm(fdims bii.di) qqline(fdims bii.di) C qqnorm(fdims elb.di) qqline(fdims elb.di) D qqnorm(fdims age) qqline(fdims age) Question 1 The histogram for female biiliac (pelvic) diameter ( bii.di ) belongs to normal probability plot letter ____. Answer The answer is B. Please find the validatio...
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ANLY 502 Lab 1b
NOW ON YOUR OWN.... Make a scatterplot of weight versus desired weight. Describe the relationship between these two variables. plot( cdc$weight , cdc$wtdesire) There is a positive relationship between desired weight and weight, with a few potential outliers on top and far right. Let's consider a new variable: the difference between desired weigh...
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ANLY 512 Lab 2
ANLY 512 Lab 2 Nischal Bondalapati Introduction Scenario How real is Climate Change? In order to answer this question, I want to look at the following historical trends: Annual Global Carbon Emissions from Fossil Fuels Annual Global Temperature Trends Annual National Average Temperatures in the US Annual Residential Energy Trends in the ...
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ANLY 512 Assignment 1
Directions During ANLY 512 we will be studying the theory and practice of data visualization. We will be using R and the packages within R to assemble data and construct many different types of visualizations. We begin by studying some of the theoretical aspects of visualization. To do that we must appreciate the basic steps in the process of mak...
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ANLY 502 Lab 1a
ggplot(data = arbuthnot, mapping = aes(x=year))+ geom_line(mapping = aes(y = boys, color = "boys"))+ geom_point(mapping = aes(y = boys, color = "boys"))+ geom_line(mapping = aes(y = girls, color = "girls"))+ geom_point(mapping = aes(y = girls, color = "girls"))+ geom_line(mapping = aes(y = total, color = "total"))+ geom_point(mapping ...
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ANLY 502 Group Project
library(stringr) library(ggplot2) library(rsq) # Import Dataset data <- read.csv(file='../../../Downloads/Dataset - small records.csv',header=TRUE) # List variables and create a subset var_list <- c("death_binary","age", "gender_binary", "respiratory", "fever", "gastrointestinal", "nausea", "cardiac", "kidney", "neuro", "diabetes"...
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ANLY 512 Lab 1
ANLY 512 Lab1 Nischal Bondalapati Introduction Row Scenario I want to invest $1,000 in Stocks for the last quarter of 2021. As the use of a CRM software seems increasingly important for every company that has an online presence, I want to look at the Stocks of some of the most popular CRM software companies such as: Salesforce Microsof...
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