Campbell PC208W, Инструкция по эксплуатации

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Section 3. Report: SPLIT
3-20 PC208W, Version 3.3, Instruction Manual
In this instance, out of range data refers to data outside of the
specified output range. It is not to be confused with out of range
data generated by the logger.
Variables can be assigned names in the Select line. For example, x = 4-
5
∗
(6
∗
3.0) means that x is equal to element 6, times the number 3, times
element 5, subtracted from element 4. A numeric value is distinguished from
an array element by the inclusion of a decimal point. Variables must be
declared before they can be used in the Select line. A variable name must start
with an alpha character, can include numbers and must not exceed eight
characters. Variable names can start with the same character but they must not
start with another complete variable name (e.g., the variable XY is not valid if
there is also the variable X). A comma must follow each variable statement, as
with all parameters in the Select line. Once the variables have been declared
they can be used later in the Select line (i.e., x=4-5
∗
(6
∗
3.0),
y=6/3,2,3,6,7,7
∗
x,6+y). Variables can be defined in the first four Input File’s
Select lines only, but may be used in subsequent Input File’s Select lines.
Processing is accomplished through arithmetic operators, math functions,
spatial functions, and time series functions. The following is a list of
operators, math functions, and Time Series functions supported by SPLIT.
TABLE 3.3-7. SPLIT Operators, Math Functions, and Time Series Functions
OPERATORS OPERATOR PRECEDENCE ORDER
(3 = high, 1 = low)
^ = raise to the power 3
x Mod y = Modulo divide of x by y 2
∗
/ = multiplication, division 2
+ - = addition, subtraction 1
EXAMPLES OF SYNTAX FOR MATHEMATICAL OPERATORS
3
∗
5 multiply element 3 by element 5
3/5 divide element 3 by element 5
(3..5)/(8..10) same as 3/8, 4/9, 5/10
3+5 add element 3 to element 5
3-5 subtract element 5 from element 3
(3,9,5)-(8,7,10) same as 3-8, 9-7, 5-10
3
∗
2.0 multiply element 3 by a fixed number 2
2^3.0 raise element 2 to the third power
MATH FUNCTIONS
Abs(x)
= Absolute value of x
Arctan(x) = Arc tangent of x (in degrees)
Cos(x) = Cosine of x (in degrees)
Exp(x) = Natural Exponent function (e
x
)
Frac(x) = Fractional portion of x
Int(x) = Integer portion of x
Ln(x) = Natural logarithm of x
Sin(x) = Sine of x (in degrees)
SpaAvg(x..y) = Spatial average of elements x through y
SpaMax(x..y) = Spatial maximum of elements x through y
SpaMin(x..y) = Spatial minimum of elements x through y
SpaSd(x..y) = Spatial standard deviation of elements x through y
Sqrt(x) = Square root of x
NOTE