CR1000 Manual - Campbell Scientific

Appendix A. CRBasic Programming Instructions
A.7 String Functions
LevelCrossing
Processes data into a one‐ or two‐dimensional histogram using a level‐crossing
counting algorithm.
Syntax
LevelCrossing(Source, DataType, DisableVar, NumLevels,
2ndDim, CrossingArray, 2ndArray, Hysteresis, Option)
RainFlow
Processes data with the Rainflow counting algorithm, essential to estimating
cumulative damage fatigue to components undergoing stress / strain cycles (see
Downing S. D., Socie D. F. (1982) Simple Rainflow Counting Algorithms.
International Journal of Fatigue Volume 4, Issue 1).
Syntax
RainFlow(Source, DataType, DisableVar, MeanBins, AmpBins,
Lowlimit, Highlimit, MinAmp, Form)
A.7.1 String Operations
Read More! See String Operations (p. 236)
& Concatenates string variables.
+ Concatenates string and numeric variables.
- Compares two strings, returns zero if identical.
String Constants
Constant strings can be used in expressions using quotation marks. For
example:
FirstName = "Mike"
String Addition
Strings can be concatenated using the '+' operator. For example:
FullName = FirstName + " " + MiddleName + " " + LastName
String Subtraction
String1‐String2 results in an integer in the range of ‐255..+255.
String Conversion to/from Numerics
Conversion of strings to numerics and numerics to strings is done
automatically when an assignment is made from a string to a numeric or
a numeric to a string, if possible.
String Comparison Operators
The comparison operators =, >,= and