Knowledge check

How can you identify the types of data in each column of your dataset?

Use the getschema operator.

Use the render operator

Highlight the columns and look at the summary in the results grid.

How can you easily find the min/max and average of a selection of integer cells in the results grid?

Sort the results grid by the desired column.

Use the render operator to plot the column and eyeball the results.

Highlight the cells and look at the summary in the bottom corner of the results grid.

How can you check if a time series is missing data?

Count how many rows are present in the time series.

Take a sample of 10 rows of data.

Plot the count of events vs. time to see if any data is missing.

You must answer all questions before checking your work.

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