Error in the homework

[adelaidewedholm]

Spent a lot of time trying to figure out why this won't run. Tried to reset the data frame, reran everything, tried to rename it, and changed the knitting pattern. Any help is appreciated.

This is the error message from when I tried to knit to an html.

Error:
! object 'maple_lm' not found
Backtrace:
▆

1. └─base::summary(maple_lm)

This is my code:

library(car)
# Summary table
summary(maple_lm)

# Coefficients as data frame (if needed)
as.data.frame(coef(maple_lm))

# Type III ANOVA (lm only)

Anova(maple_lm, type = 3)

library(broom)

tidy_lm <- broom::tidy(maple_lm)
tidy_lm  # now this is a proper data frame

[dmcglinn]

This error is telling you that in your Rscript you are referencing the object maple_lm before it is defined. So for example before these lines:

library(car)
# Summary table
summary(maple_lm)

you need a line like the following:

maple_lm <- lm(cover ~ . , data = maple)