Macro commands may be used either in macros or by sending the commands to DPlot via dynamic data exchange (DDE). Some commands are valid only in macros (noted by Macros Only). Commands sent to DPlot via DDE must be enclosed by square brackets [ ]. Macro commands should not include the brackets.
Command parameters shown in the descriptions below are placeholders for the actual values. Command parameters are either numeric values, equations that evaluate to numbers, or character strings. Character string parameters are always bound by double quotation marks. Equations must be preceded by an equals sign (=).
The pipe symbol (|) in the command syntax indicates that a parameter is optional, and should not be included in your macro unless otherwise noted.
All indices into arrays are 1-based, e.g. Curve1=1 refers to the first curve in a plot.
A 0x prefix for numbers in the descriptions below indicates hexadecimal notation; e.g. 0x0010 = 16.
JR/Viewer indicates that the command is supported by DPlot Jr or DPlot Viewer.
JR/Viewer indicates that the command is NOT supported by DPlot Jr or DPlot Viewer.
Generates a new curve with a constant spacing of interval on the abscissa (X axis), using linear (method = 1), quadratic (method = 2), cubic (method = 3), or cubic spline (method = 4) interpolation. Replaces the existing curve if replace is not equal to 0, otherwise generates a new curve. If the optional specify_limits is 0 or not specified, then the minimum and maximum X values for each selected curve will be used in the new curve(s). If specify_limits is non-zero, then the new curve(s) will start at X=startX and end at X=endX.