data sets mathematica

1. MATHEMATICA
Wolfram Language
Datasets

2. Wolfram Cloud

3. Organise Your Work

4. Statistics Folder

5. Datasets
■ Without a plan, you will be unable to upload datasets.
■ We can make datasets in the notebooks
■ Consider the dataset: db1 = Dataset [{1, 2, 3, 4, 5}]
■ Shift-Enter to run the line of code and you will see the
output as shown above.

6. Datasets
■ Try the dataset: db2 = Dataset [{1, 2, 3, 4, 5}]
■ Add in three more elements to the dataset: db2 = Dataset [{1,
2, 3, 4, 5, 6, 7, 8}]

7. Solution

8. Dataset Doubles
■ Try this: db2 = [{1, 2}, {2, 4}, {3, 6}]

9. Dataset Doubles
■ Try this: db2 = [{1, 2}, {2, 4}, {3, 6}] and add n three more
elements as we did before.

10. More Doubles
Try this:
db3 = Dataset[{<|"a" -> 1, "b" -> 2|>, <|"a" -> 2, "b" -> 5|>}]
What is the output?

11. More Doubles
Try this:
db3 = Dataset[{<|"a" -> 1, "b" -> 2|>, <|"a" -> 2, "b" -> 5|>}]
What is the output?

12. More Doubles
Try this:
db3 = Dataset[{<|"a" -> 1, "b" -> 2|>, <|"a" -> 2, "b" -> 5|>}]
Add in another column and another row…

13. More Doubles: Another column and another row…
db3 = Dataset[{<|"a" -> 1, "b" -> 2|>, <|"a" -> 2, "b" -> 5|>}]

14. Datasets
Construct the following in a single notebook and save your notebook
as “datasets.nb” in Wolfram Cloud in the “Statistics” folder on your
account:
■ db1 = [{3, 6, 9, 12, 15}]
■ db2 = [{{1, 2}, {2, 4}, {3, 6}, {4, 8}, {5, 10}]
■ db3 = Dataset[{<|"a" -> 1, "b" -> 2|>, <|"a" -> 2, "b" -> 5|>,
<|"a" -> 3, "b" -> 8|>}]
■ db4 = Dataset[{ <|"a" -> 1, "b" -> 70|>, <|"a" -> 2, "b" -> 71|>,
<|"a" -> 3, "b" -> 74|>, <|"a" -> 4, "b" -> 80|>, <|"a" -> 5, "b" ->
73|>, <|"a" -> 6, "b" -> 75|>}]
■ db5 = Dataset[{ <|"a" -> 1, "b" -> "x", "c" -> {1}|>, <|"a" -> 2, "b" -
> "y", "c" -> {2, 3}|>, <|"a" -> 3, "b" -> "z", "c" -> {3}|>, <|"a" -> 4,
"b" -> "x", "c" -> {4, 5}|>, <|"a" -> 5, "b" -> "y", "c" -> {5, 6, 7}|>,
<|"a" -> 6, "b" -> "z", "c" -> {}|>}]