Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

R program matrix

Posted on 2015-01-11
2
Medium Priority
?
273 Views
Last Modified: 2015-01-13
Hi,

I am trying to create a table that looks as follows:

    portfolio            return            risk
    SP                        6                    20
    NASDAQ            10                  25
The numbers are stored in variables and I am not hardcoding them and rest are headings.
How do I code for this.

Thanks
0
Comment
Question by:camper12
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 74

Accepted Solution

by:
sdstuber earned 2000 total points
ID: 40545273
> t <- matrix(c(60,20,10,25),ncol=2,byrow=TRUE)
> rownames(t) <- c("SP","NASDAQ")
> colnames(t) <- c("return","risk")
> t <- as.table(t)
> t

substitute your variables for the corresponding values in the collection
0
 
LVL 74

Expert Comment

by:sdstuber
ID: 40545287
another version, same idea, using a matrix, but different syntax

> vals <- c(6,20,10,25)
> rows <- c("SP","NASDAQ")
> cols <- c("return","risk")
> tab <- matrix(vals,ncol=2,byrow=TRUE,dimnames=list(rows,cols))
> tab

I don't know of a way to put a label above the row names, that is, your "portfolio" label.
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Make the most of your online learning experience.
We live in a world of interfaces like the one in the title picture. VBA also allows to use interfaces which offers a lot of possibilities. This article describes how to use interfaces in VBA and how to work around their bugs.
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …
Simple Linear Regression
Suggested Courses

596 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question