The bar chart at the top of each column, called a histogram, characterizes the data in that column. Each column histogram displays the count of each detected value in the column (for string data) or the count of values within a numeric range (for number data).

You can use this histogram to identify unusual values or outlier values, which should be removed or corrected.

NOTE: Counts in a column histogram reflect only the data in the sample in the data grid. Counts in the entire dataset may differ.

Column Histogram

Tip: When you resize the width of a column, the number of bars displayed in the column histogram changes accordingly. You can use this dynamic resizing to change the granularity displayed in histograms.

The contents of the column histogram vary depending on the data type for the column. For example:

Tip: If you hover over a bar in the histogram, you can review specific values, the count of that value, and the percentage that value represents of the total count of values in the column.

When you select values:

To select values: