Metrohm viva 1.0 (process analysis) - Manual (Page 640)

5.6 Evaluation subwindow
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viva 1.0 (for Process analysis)
5.6.7.4.5 Coefficient of determination R 2
Variable name RS.’Command name’.’Substance name’.R2
Description Coefficient of determination R 2 .
Decimal places 0…5…6
Unit −
Calculation
Variable Description
2 R Coefficient of determination.
i
y
y value of calibration point i.
y
Mean value of all y values of the calibra-
tion points.
i
yˆ The y value of calibration point i calcu-
lated with the calibration curve.
5.6.7.5 Volume results
5.6.7.5.1 Total volume
Variable name RS.VTOT
Description Current total volume in the measuring vessel.
Decimal places 0…3…6
Unit #L
Remarks The value of these variables is set to 0 at the start of a determination. The
respectively defined addition volume for the RS.VTOT variable is added
with each command ADD AUX (only if the option Include volume in
calculation is activated), ADD STD, ADD SAMPLE and ADD SAMPLE
DT.