## Various Program Limits

### How many Y variables can be plotted on a graph?

Version 4.5 – A maximum of 99 Y variables can be plotted on a single plot.

Version 4.1 and earlier – A maximum of 20 Y variables can be plotted on a single plot. To plot more than 20 variables, you could create two separate plots and overlay them in the layout window.

The one exception is the Pie chart which only permits one X and one Y variable.

### What is the maximum size of the data window?

The data window has a maximum limit of 1000 columns and 1 million rows, which cannot be increased.

### How many lines can be skipped when importing a text file?

A maximum of 2 million lines can be skipped when importing a text file.

### How many characters can I enter into the Formula Entry and General curve fit windows?

Functions over 250 characters in length will be truncated in the Formula Entry and General curve fit windows. A way to get around this is to define portions of the formula in the Library and use a single formula to tie them all together.

### How many characters can be entered for a single text label?

A maximum of 2000 characters can be entered for a single text label in the plot or layout window.

### How many groups will the Post Hoc tests analyze?

The Post Hoc tests are limited to a maximum of 250 groups.

### How many objects can be created on a single plot?

A maximum of 500 objects (lines, boxes, ovals, etc.) can be created on a single plot. This limit does not include text labels.

### How many data windows can be open at one time?

A maximum of 160 data windows may be open at one time in v3.08 and later.