differences for PR #626

Author: actions-user

05-merging-data.md

@@ -149,24 +149,24 @@ new_output = pd.read_csv('data/out.csv', keep_default_na=False, na_values=[""])
 
 ### Challenge - Combine Data
 
-In the data folder, there is another folder called `yearly_files` 
-that contains survey data broken down into individual files by year. 
-Read the data from two of these files,
-`surveys2001.csv` and `surveys2002.csv`,
+In the data folder, there are additional files
+that contain survey data broken down into individual files by year. 
+Read the data from
+`surveys2001.csv` and `surveys2002.csv`
 into pandas and combine the files to make one new DataFrame.
-Create a plot of average plot weight by year grouped by sex.
+Create a plot of average weight by year grouped by sex.
 Export your results as a CSV and make sure it reads back into pandas properly.
 
 ::::::::::::::::::::::: solution
 
 ```python
 # read the files:
-survey2001 = pd.read_csv("data/yearly_files/surveys2001.csv")
-survey2002 = pd.read_csv("data/yearly_files/surveys2002.csv")
+survey2001 = pd.read_csv("data/surveys2001.csv")
+survey2002 = pd.read_csv("data/surveys2002.csv")
 # concatenate
 survey_all = pd.concat([survey2001, survey2002], axis=0)
 # get the weight for each year, grouped by sex:
-weight_year = survey_all.groupby(['year', 'sex']).mean()["wgt"].unstack()
+weight_year = survey_all.groupby(['year', 'sex']).mean()["weight"].unstack()
 # plot:
 weight_year.plot(kind="bar")
 plt.tight_layout()  # tip: use this to improve the plot layout. 

md5sum.txt

@@ -9,7 +9,7 @@
 "episodes/02-starting-with-data.md" "7aae8d49ef03e5c65d66cc0104ddbf10" "site/built/02-starting-with-data.md" "2024-02-23"
 "episodes/03-index-slice-subset.md" "3085c53ba22bacb5ecf486aedefa4a8c" "site/built/03-index-slice-subset.md" "2025-04-29"
 "episodes/04-data-types-and-format.md" "e57b9b771e5d2dcf4c9e2521822f8d5a" "site/built/04-data-types-and-format.md" "2023-06-05"
-"episodes/05-merging-data.md" "8491d51a41ad970f69acac6162e97432" "site/built/05-merging-data.md" "2024-02-21"
+"episodes/05-merging-data.md" "b23ea51f59e06fb1bbf2eb0af3d842b8" "site/built/05-merging-data.md" "2025-06-27"
 "episodes/06-loops-and-functions.md" "d41f11e6c162c86393cd9bd4431c0687" "site/built/06-loops-and-functions.md" "2023-05-18"
 "episodes/07-visualization-ggplot-python.md" "be85fc2fd560b30bee0818ecf4a4e712" "site/built/07-visualization-ggplot-python.md" "2024-03-29"
 "episodes/08-putting-it-all-together.md" "b279a4ab47789abda7f71609a78022ed" "site/built/08-putting-it-all-together.md" "2024-01-31"