From fe115811be3ccfa905305ce3bfd106109587b860 Mon Sep 17 00:00:00 2001 From: Cody Hennesy Date: Wed, 16 Oct 2024 09:27:38 -0500 Subject: [PATCH] Update looping-data-sets.md add import statement at beginning of episode (via learner feedback) --- episodes/looping-data-sets.md | 1 + 1 file changed, 1 insertion(+) diff --git a/episodes/looping-data-sets.md b/episodes/looping-data-sets.md index 6c98c183..dbbacdab 100644 --- a/episodes/looping-data-sets.md +++ b/episodes/looping-data-sets.md @@ -23,6 +23,7 @@ exercises: 10 If you recall from episode 06, the `pd.read_csv()` method takes a text string referencing a filename as an argument. If we have a list of strings that point to our filenames, we can loop through the list to read in each CSV file as a DataFrame. Let's print out the maximum values from the 'ytd' (year to date) column for each DataFrame. ```python +import pandas as pd for filename in ['data/2011_circ.csv', 'data/2012_circ.csv']: data = pd.read_csv(filename) print(filename, data['ytd'].max())