Fix issues

nathanbraun · Mar 23, 2023 · a5d6d68 · a5d6d68
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diff --git a/README.md b/README.md
@@ -23,6 +23,9 @@ If I were using Windows, it might look like this:
 Set these aside for now and we'll pick them up in chapter 2.
 
 ## Changelog
+### v0.0.6 (2023-03-23)
+Fix some misc typos, mostly in end of chapter problems (thanks again Emil!).
+
 ### v0.0.4 (2023-03-03)
 Fix some misc other sport references (thanks Emil!).
 

diff --git a/code/03_01_columns.py b/code/03_01_columns.py
@@ -57,7 +57,7 @@
 def is_e_metro(team):
   """
   Takes some string named team ('WSH', 'CHI' etc) and checks whether they're in
-  the Metropolis division.
+  the Metropolitan division.
   """
   return team in ['WSH', 'NYI', 'PIT', 'CAR', 'CBJ', 'PHI', 'NYR', 'NJD']
 

diff --git a/solutions-to-exercises/03_pandas_answers.py b/solutions-to-exercises/03_pandas_answers.py
@@ -231,8 +231,8 @@
 # flags ALL dups (not just 2nd) because passing keep=False
 dups = dfp[['team', 'birth_city', 'birth_state_prov']].duplicated(keep=False)
 
-dftg_fg_dup = dfp.loc[dups]
-dftg_fg_no_dup = dfp.loc[~dups]
+dfp_dups = dfp.loc[dups]
+dfp_nodups = dfp.loc[~dups]
 
 #######
 # 3.3.5
@@ -312,8 +312,10 @@
 """
 Count counts the number of non missing (non `np.nan`) values. This is different
 than `sum` which adds up the values in all of the columns. The only time
-`count` and `sum` would return the same thing is if you had a column filled
-with 1s without any missing values.
+`count` and `sum` would reliably return the same thing is if you had a column
+filled with 1s without any missing values.
+
+We want to use count. Sum doesn't make any sense.
 """
 
 #######