Statistics; Display Of Statistics - BAQ alphaDUR mini Manual

5.5 Statistics

If the measured value memory is switched on, the values of a series can be
evaluated statistically at all times. Even if the measured value memory is not
switched on, the hardness numbers are always temporarily stored until the
measurement window is closed. Thus a statistical evaluation of the measured
values can also be displayed with switched off measured value memory.
If the hardness scale or material is changed by key press in the measurement
window, the statistics are reset.

5.5.1 Display of statistics

The output of the statistical evaluation is implemented as soon as the number
of measurements set-adjusted in the measuring
parameters have been made, or the key STAT is
pressed. First to be displayed are average value,
standard deviation, relative standard deviation
(standard deviation in % of the average value),
minimum, maximum and the number of values.
Standard deviation and average value are
displayed with 1 decimal place more than is
usual for the hardness scale. The Rockwell scales are usually indicated with 1
decimal place, Vickers, Brinell, Shore and tensile strength without any decimal
place. The relative standard deviation is displayed with 2 decimal places.
If the key STAT is pressed again in this view, a window is opened in which are
displayed the measured values with which the statistics were
is possible to change or to delete obviously incorrect values.
MEASUREMENT
Fig. 5: Statistics
calculated. Here it
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