Issues with code

czamiara

Some of my students are not able to run the code at line In [11]. This is code that is already in there but when they go to run it, it gives them an error (see below). Please help

Error in h(simpleError(msg, call)): error in evaluating the argument 'object' in selecting a method for function 'summary': object 'sat_model_1' not found
Traceback:

1. summary(sat_model_1)
2. .handleSimpleError(function (cond)
. .Internal(C_tryCatchHelper(addr, 1L, cond)), "object 'sat_model_1' not found",
. base::quote(eval(expr, envir, enclos)))
3. h(simpleError(msg, call))

dylarm

czamiara A couple of troubleshooting questions:

In that same codeblock (I presume it's the one for Section 1.5 in Notebook 4), have those students defined sat_model_1? Using lm of course.
If they have, is this just after they have re-opened the notebook after closing it? They do need to run all the previous cells beforehand, if that's the case.

For reference, this is the code that should, more or less, be in that block:

# Your code goes here
sat_model_1 <- lm(default_rate ~ SAT_avg, data = sample_dat)
summary(sat_model_1)