INST No INE -403-0P0
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19
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6.4.2 Knee point line setting data
The following data is necessary for the creation of the calibration curve by knee point line
approximation.
Data name
Display
Setting
range
Default
value
Remarks
(1) Calibration curve
number
CH
1 to 99
1
(2) Data count
N
3 to 20
3
(3) Data number
Dn
1 to 20
1
(3) Sample data
ｘ
ｎ
Hn
0 to ±9999.9 0.0000 Valid number 5 digits
(3) Sample data
ｙ
ｎ
yn
0 to ±9999.9 0.0000 Valid number 5 digits
(4) Regression/Broken
line
Pb
1 to 4
1
1 to 3:
Polynomial expression degree
(Regression operation)
4: Broken line approximation
(5) Standard deviation Sd
0 to 999.99
0.0000 Setting not required in broken line
approximation
(1) Calibration curve number:
Calibration curve number can be specified in optional
numbers from 1 to 99 but usually it is specified in order
from 1.
(2) Data count:
It is the number of knee point data and the maximum is 20 points.
(3) Data number, sample data x
n,
sample data y
n :
Enter the knee point data obtained in [6.4.1 Setting of knee point data].
(4) Regression/knee point line :
With entering 1, 2 or 3, the polynomial expression with that
degree can be obtained according to the above sample data
by regression operation. When 4 is entered, knee point line
approximation is obtained.
(5) Standard deviation:
When the regression operation is specified, standard deviation is
displayed. This setting is not required in knee point line
approximation.
6. Operation
