Use compression to minimize the size of your data table, allowing JMP to run faster.
Compressing columns is particularly helpful when numeric columns contain many small integers, or when any column contains fewer than 255 unique values. For example, compressing columns in a data table with 389 columns and 85,000 rows might decrease the file size from 250MB to 33MB, depending on the type of data.
To compress columns, select one or more columns and select Cols > Utilities > Compress Selected Columns.
Compress Selected Columns Option Compressing a large data table reduces the size of the stored file. To compress a large data table:
- Click the red triangle next to the data table name in the table panel and select Compress file when saved.
- Save the data table.
Compress File When Saved Option Note: The Compress file when saved option decreases the file size. It does not impact the memory that is required to analyze the data. To reduce the file size and memory required for analyzing, use the Compress Selected Columns option.