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21 statistics – Metrohm 840 PC Control 5.0 / Touch Control User Manual

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3.21 Statistics

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PC Control / Touch Control

3.21 Statistics

In the Results dialog you can open the statistics overview of a multiple

determination with [Statistics]. A maximum of nine results calculated

in a single determination can be statistically evaluated. A statistics

series can contain a maximum of 20 determinations, i.e. samples.
If you wish to have statistical calculations carried out on the results then

you have to activate the Statistics checkbox in the method under

Sequence/Method options and enter the Number of samples (see

Section 3.16.4).
The results for which statistical calculations are to be carried out are

defined in the CALC command (calculation).
You find a short description about statistical calculations in the Tutorial

for Touch Control and PC Control.

The number of determinations that have already been carried out is

shown above the list (actual statistics counter) together with the total

number of determinations to be carried out (set statistics counter). The

name of the result and the mean value are shown for each result.
With [Details] you can display the statistics results for the selected

result and the individual results of all the determinations. With [Add

determination] you can also add a sample to the series later. This is a

good idea if one determination in the series was so incorrect that it

cannot be accepted.

Note!

If you

recalculate a determination then the statistics calculations for

the determination will also be recalculated.