Clustering - Answer Key

Exercise 1

1. When we looked at the first few rows of our metadata, it appeared that there were many cells that do not have a cluster value. Count how many NA’s are found for our cluster with table() function and use the argument (useNA = "ifany"). Why do you think there are so many NA values?

table(seurat_processed$seurat_cluster.sketched,
      useNA = "ifany")

     1      2      3      4      5      6      7      8      9     10     11 
  1332   1316   1280   1061    956    878    876    745    676    364    147 
    12     13     14   <NA> 
   145    114    110 125798 

Exercise 2

1. A question to evaluate Learning Objective 2

2. A followup question to question #1

3. …

Exercise 3

1. A question to evaluate Learning Objective 3

2. A followup question to question #1

3. …