24 lines
1.0 KiB
Markdown
24 lines
1.0 KiB
Markdown
- #[[ST2001 Labs]]
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- **Previous Topic:** [[Using R as a Calculator]]
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- **Next Topic:** null
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- Most of our computation in R will be using data in table form, with rows & columns, which are often stored as a `data.frame` object.
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- The rows usually represent different *observations*, (e.g., humans, cars, etc.) and the columns represent different *variables* (features of the observation), (e.g., height, weight, etc.).
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- What does `glimpse()` do? #card
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card-last-interval:: 4
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card-repeats:: 2
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card-ease-factor:: 2.7
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card-next-schedule:: 2022-11-22T18:34:17.944Z
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card-last-reviewed:: 2022-11-18T18:34:17.945Z
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card-last-score:: 5
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- The `glimpse()` function gives us an overview of the dataset on each experimental unit.
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- What does `dim()` do? #card
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card-last-interval:: 29.99
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card-repeats:: 4
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card-ease-factor:: 2.56
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card-next-schedule:: 2022-12-14T19:04:53.617Z
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card-last-reviewed:: 2022-11-14T20:04:53.617Z
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card-last-score:: 5
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- The `dim()` function returns the number of rows & columns in a dataframe.
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