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Diffstat (limited to 'docs/tutorial.rst')
| -rw-r--r-- | docs/tutorial.rst | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/docs/tutorial.rst b/docs/tutorial.rst index 561b24c..bd2dbc0 100644 --- a/docs/tutorial.rst +++ b/docs/tutorial.rst @@ -68,7 +68,7 @@ Adding Headers -------------- -It's time enhance our :class:`Dataset` by giving our columns some titles. To do so, set :class:`Dataset.headers`. :: +It's time to enhance our :class:`Dataset` by giving our columns some titles. To do so, set :class:`Dataset.headers`. :: data.headers = ['First Name', 'Last Name'] @@ -146,6 +146,13 @@ To do so, we access the :class:`Dataset` as if it were a standard Python diction >>> data['First Name'] ['Kenneth', 'Bessie'] +You can also access the column using its index. :: + + >>> d.headers + ['Last Name', 'First Name', 'Age'] + >>> d.get_col(1) + ['Kenneth', 'Bessie'] + Let's find the average age. :: >>> ages = data['Age'] @@ -244,7 +251,7 @@ Filtering Datasets with Tags When constructing a :class:`Dataset` object, you can add tags to rows by specifying the ``tags`` parameter. -This allows you to filter your :class:`Dataset` later. This can be useful so separate rows of data based on +This allows you to filter your :class:`Dataset` later. This can be useful to separate rows of data based on arbitrary criteria (*e.g.* origin) that you don't want to include in your :class:`Dataset`. Let's tag some students. :: @@ -256,7 +263,7 @@ Let's tag some students. :: students.rpush(['Kenneth', 'Reitz'], tags=['male', 'technical']) students.rpush(['Bessie', 'Monke'], tags=['female', 'creative']) -Now that we have extra meta-data on our rows, we can use easily filter our :class:`Dataset`. Let's just see Male students. :: +Now that we have extra meta-data on our rows, we can easily filter our :class:`Dataset`. Let's just see Male students. :: >>> students.filter(['male']).yaml |