Question: Suppose I have a dataframe called statclass containing everyone in the class's name, email, carmen_ID, and grade (labelled as such). What is the primary way

Suppose I have a dataframe called "statclass" containing everyone in the class's name, email, carmen_ID, and grade (labelled as such). What is the primary way to access the email variable?

A. statclass_email

B. statclass$email

C. statclass(email)

D. statclass[email]

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Discuss Semantics and the challenges they are in English. 2 Language Structure and Use Learning Outcomes After reading this chapter, you should be able to ... Explain how language contributes to...

Read Classroom Glimpse. Discuss stress, rhythm, pitch, and intonation based on the tale in the classroom 2 Language Structure and Use Learning Outcomes After reading this chapter, you should be able...

You may practice teaching and learning tactics. Create a list you may use in class, others, and as a solo instructor. 2 Language Structure and Use Learning Outcomes After reading this chapter, you...

llustrate different ways of connecting these components together to span a range of performance requirements. [10 marks] For each of the performance categories that you identify state today's typical...

: (i) What data structures are maintained by the page manager. (ii) What happens when a machine performs a read operation to a page. (iii) What happens when a machine performs a write operation to a...

This policy will be reviewed no later than 5 years of its authorisation date. At this point it will need to be re-authorised by the relevant authority at Xxz Financial Services Version Published...

Module 9 Assignment: TOC Answer all the questions and submit your answer report to Module 9 Assignment in Dropbox by the deadline . The report should be typed, single spaced, in one MS Word file. You...

C++ PLEASE READ CAREFULLY! Write a program named email.cpp that opens and input from a text file and writes another text file. The purpose of the program is to extract email addresses embedded in the...

answer the question clearly You are building a flight-control system for which a convincing safety case must be made. Would you assign the tasks of safety requirements engineering, test case...

There are two problems due this week (each worth 35 points) as follows. Case 5-1David L. Miller: Portrait of a White-Collar Criminal (page 144). In comprehensive paragraphs, answerrequirements 1?6....

Suppose that x1, . . . , xn form a random sample from an exponential distribution for which the value of the parameter is unknown ( > 0). Find the M.L.E. of .

If f : Rn R is differentiable and f (0) = 0, prove that there exist gi: Rn R such that f (x) =

Why might some auditors be more or less inclined to rely on those representations?

Some makes of older cars have 6 . 0 0 - V electrical systems. ( a ) What is the resistance of a 3 0 . 0 - W headlight in such a car? ( b ) What current flows through it ? ( c ) How much energy, in...

After Column and Data Types have been set in the Mining Structure, what is the next step?

What needs to occur after any Structural or Variable setting change in SSAS Mining Structures?

For the highest GS Pay Grade Group (1115) in the Federal Government, what are the chances of Females being included? Do Females have longer service statistics in that Group?