36-315-Lab8

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# 36-315: Statistical Graphics and Visualization
## Lab 8

Meghan Hall Department of Statistics & Data Science Carnegie Mellon University June 22, 2021

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# Group project logistics

.large[Email me ASAP if:]
 
.medium[you have a group member (or two) you want to be with]
 
.medium[you want your time zone taken into consideration]

.large[First piece due Friday 11:30am EDT]
 
.medium[summary of where you are so far: collaboration strategy, data set decisions, etc.]

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# Midterm considerations

.large[Inefficient joining & aggregating]
 
.medium[always join at the latest possible step]
 
.medium[distill aggregating into as few steps as possible]

.large[Be careful with your conclusions]
 
.medium[be aware of the limitations of the data you have]

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# Today's lab

.large[Visualizing model output]
 
.medium[models have already been created for you]
 
.medium[will need to create a user-defined function]

.large[The syntax from Lecture 12 will be very helpful!]

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# A note about syntax

**these evaluate to the same result**

personal preference if you:

```r
# a) start with data and pipe in the function

TOI_plus_predictions %>% 
  accuracy(defense, 
           .pred_class)

# b) run the function on its own and supply the data

accuracy(TOI_plus_predictions, 
         defense, 
         .pred_class)
```

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# Upcoming

.large[Lab assignment due 11:30am EDT Wednesday]
 
.medium[Ask questions on Piazza if they don't get answered here]

.large[Lecture 13 on Wednesday June 23]
 
.medium[creating tables and analyzing text data]

.large[Second graphic critique]
 
.medium[let's drop it]