CODEWITHSUNDEEP
r
stacker1919
stacker1919

Reputation: 13

Trouble using attach() in R

I am having trouble assigning columns to the strings above them. I believe the proper way to do this is use the attach() function. I have a csv file loaded with columns of data on Flight, O.ring, and Temp. I have tried to clear previously attached data by using the detach() function, but have not had any luck.

### Files saved in the directory below
setwd("/Users/newUser/desktop/programming")
data <- read.table("Challenger.csv", header=TRUE)
attach(data)
O.ring
Error: object 'O.ring' not found
Flight
Error: object 'Flight' not found
Temp
Error: object 'Temp' not found
fit1 <- glm(O.ring ~ Temp + Pressure, family=binomial(logit))
Error in eval(expr, envir, enclos) : object 'O.ring' not found
fit1
Error: object 'fit1' not found

Edit: I also need help accessing the columns stored in data to use them to model. Any idea what the problem is with my fit1?

Upvotes: 1

Views: 3926

Answers (1)

Rich Scriven
Rich Scriven

Reputation: 99331

Don't use attach(). Ever. Forget it exists.

glm() has a data argument. Using that proves much less stressful.

glm(O.ring ~ Temp + Pressure, family = binomial(logit), data = data)

If you want to know why attach() is not advisable, see Why is it not advisable to use attach() in R and what should I use instead?

Upvotes: 9

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