Question 1 Here are two lines of code: incdemo<-read.csv("incdemo2000.csv") reg1<- (birthweight~smoker, data=birthweight) R will not run because O birthweight data is not loaded. O the variables do not exist or have different names in the birthweight dataset O R is confused whether birthweight is a variable or a dataset. O There is a missing parenthesis in the code. Question 2 What do the following 2 lines of code do? reg1<-Im(birthweight-smoker+unmarried, data=birth) birth$bw<-birth$birthweight-predict(reg1, birth) O Create a new dataset containing the predicted values of birthweight for reg1 O Create a new variable in birth containing the predicted values of birthweight for reg1 O Create a new dataset containing the regression residuals for reg1. O Create a new variable in birth containing the regression residuals for reg1 Question 3 Here is a line of code: sm<-birth[c("birthweight", "nprevist", "smoker")] In this line of code, sm is: O New variable in a new dataset O A new variable in dataset birth O A new dataset with fewer observations than birth O A new dataset with fewer variables than birth
Question 1 Here are two lines of code: incdemo<-read.csv("incdemo2000.csv") reg1<- (birthweight~smoker, data=birthweight) R will not run because O birthweight data is not loaded. O the variables do not exist or have different names in the birthweight dataset O R is confused whether birthweight is a variable or a dataset. O There is a missing parenthesis in the code. Question 2 What do the following 2 lines of code do? reg1<-Im(birthweight-smoker+unmarried, data=birth) birth$bw<-birth$birthweight-predict(reg1, birth) O Create a new dataset containing the predicted values of birthweight for reg1 O Create a new variable in birth containing the predicted values of birthweight for reg1 O Create a new dataset containing the regression residuals for reg1. O Create a new variable in birth containing the regression residuals for reg1 Question 3 Here is a line of code: sm<-birth[c("birthweight", "nprevist", "smoker")] In this line of code, sm is: O New variable in a new dataset O A new variable in dataset birth O A new dataset with fewer observations than birth O A new dataset with fewer variables than birth
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Question 1
Here are two lines of code:
incdemo<-read.csv("incdemo2000.csv")
reg1<- (birthweight-smoker, data=birthweight)
R will not run because
O birthweight data is not loaded.
O the variables do not exist or have different names in the birthweight dataset
O R is confused whether birthweight is a variable or a dataset.
O There is a missing parenthesis in the code.
Question 2
What do the following 2 lines of code do?
reg1<-Im(birthweight-smoker+unmarried, data=birth)
birth$bw<-birth$birthweight-predict(reg1, birth)
O Create a new dataset containing the predicted values of birthweight for reg1
O Create a new variable in birth containing the predicted values of birthweight for reg1
O Create a new dataset containing the regression residuals for reg1.
O Create a new variable in birth containing the regression residuals for reg1
Question 3
Here is a line of code:
sm<-birth[c("birthweight", "nprevist", "smoker")]
In this line of code, sm is:
O New variable in a new dataset
O A new variable in dataset birth
A new dataset with fewer observations than birth
O A new dataset with fewer variables than birth](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1069b8fd-3bdf-48a6-a3dd-78335414168f%2F3046b3f5-a58f-40d9-95df-26e8c1a994fa%2Fe0tlzcz_processed.png&w=3840&q=75)
Transcribed Image Text:Question 1
Here are two lines of code:
incdemo<-read.csv("incdemo2000.csv")
reg1<- (birthweight-smoker, data=birthweight)
R will not run because
O birthweight data is not loaded.
O the variables do not exist or have different names in the birthweight dataset
O R is confused whether birthweight is a variable or a dataset.
O There is a missing parenthesis in the code.
Question 2
What do the following 2 lines of code do?
reg1<-Im(birthweight-smoker+unmarried, data=birth)
birth$bw<-birth$birthweight-predict(reg1, birth)
O Create a new dataset containing the predicted values of birthweight for reg1
O Create a new variable in birth containing the predicted values of birthweight for reg1
O Create a new dataset containing the regression residuals for reg1.
O Create a new variable in birth containing the regression residuals for reg1
Question 3
Here is a line of code:
sm<-birth[c("birthweight", "nprevist", "smoker")]
In this line of code, sm is:
O New variable in a new dataset
O A new variable in dataset birth
A new dataset with fewer observations than birth
O A new dataset with fewer variables than birth
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