Specifications

Section 6. Data Table Declarations and Output Processing Instructions
Parameter
& Data Type
Enter
DisableVar
Constant,
Variable or
The DisableVar is a Constant, Variable, or Expression that is used to determine
whether the current measurement is included in the values to evaluate for a
maximum or minimum
Value Result
0 Process current input
Expression
≠0 Do not process current input
StdDev (Reps, Source, DataType, DisableVar)
StdDev calculates the standard deviation of the Source(s) over the output
interval.
δ() / /xxxNN
ii
i
iN
i
iN
=−
⎛
⎝
⎜
⎜
⎞
⎠
⎟
⎟
⎛
⎝
⎜
⎜
⎞
⎠
⎟
⎟
⎛
⎝
⎜
⎜
⎜
⎞
⎠
⎟
⎟
⎟
=
=
=
=
∑∑
2
1
2
1
1
2
where
(
)
δ
x
is the standard deviation of x, and N is the number of samples
Parameter
& Data Type
Enter
Reps
Constant
The number of standard deviations to calculate. When repetitions are greater than 1, the
source must be an array.
Source
Variable
The name of the Variable that is the input for the instruction.
DataType A code to select the data storage format.
Constant Alpha Code Data Format
IEEE4 IEEE 4 byte floating point
FP2 Campbell Scientific 2 byte floating point
DisableVar
Constant,
Variable, or
Expression
A non-zero value will disable intermediate processing. Normally 0 is entered so all inputs
are processed. For example, when the disable variable is ≠0 the current input is not
included in the standard deviation. The standard deviation that is eventually stored is the
standard deviation of the inputs that occurred while the disable variable was 0.
Value Result
0 Process current input
≠ 0 Do not process current input
Totalize (Reps, Source, DataType, DisableVar)
This instruction stores the total(s) of the values of the source(s) over the given
output interval. The data table in which the Totalize instruction appears must
be called every scan for Totalize to work correctly. Do not put the CallTable
instruction for that table in a conditional statement.
Parameter
& Data Type
Enter
Reps
Constant
The number of totals to calculate. When repetitions are greater than 1, the source must be
an array.
Source
Variable
The name of the Variable that is the input for the instruction.
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