Data Editor
Press
to open the statistical application.
Choose fit data... and press
.

All data is stored in a two-dimensional array called
.
The first column contains the x values, the second contains the y values.
To edit the data press
.

Any entry can be changed. Use the cursors to move to the desired entry
and type in the new value. The entry is changed and the cursor
highlights the next entry.
Note: A row can be deleted. Highlight an entry in the row and press
.
All elements below the deleted row move up one place.
A new row can be inserted. Highlight an entry in the row and press
.