User`s guide

Agilent EasyEXPERT User’s Guide Vol. 1, Edition 1 5- 17
Built-in Programming Tool
Read-out Functions
Functions for Cursor
@CX Returns the value of the X coordinate at the active cursor position.
@CY Returns the value of the Y coordinate at the active cursor position. If there are two Y
axes, this function returns the value for the selected axis.
@CYn Returns the value of the Yn coordinate at the active cursor position (n: 1 to 8,
integer).
Functions for Line
@LmCO Returns the correlation coefficient of the regression for Line m (m: 1 or 2).
Line m must be in regression mode. If not, this function returns invalid data.
@LmG Returns the slope of Line m (m: 1 or 2).
If there are two Y axes, this function returns the value for the selected axis.
This function calculates the slope by using the following formula:
• If the X and Y axes are both linear scale:
 = (y
1
-y
0
) / (x
1
-x
0
)
• If the X axis is log scale, and the Y axis is linear scale:
 = (y
1
-y
0
) / (log x
1
- log x
0
)
• If the X axis is linear scale, and the Y axis is log scale:
 = (log y
1
-log y
0
) / (x
1
-x
0
)
• If the X and Y axes are both log scale:
 = (log y
1
-log y
0
) / (log x
1
- log x
0
)
where,
 : Slope of Line m
x
0
, y
0
, x
1
, y
1
: X and Y coordinate values at the two points where Line m
intercepts the perimeter of the plotting area.
@LmGn Returns the slope of Line m (m: 1 or 2) for the Yn axis (n: 1 to 8, integer).
This function calculates the slope by using the following formula: