DM2003 has powerful graphic engine that can display not only "raw" numeric
data, but arbitrary functions on the given data calculated dynamically without actual
data changes. Series may be either data or functional. Data series must be
associated with worksheet and display worksheet data (possibly transformed by expressions).
Functional (or parameterized) series don't use numeric data; instead, point coordinates are
defined as a result of evaluation of X and Y expressions, both depend on cx
parameter whose values belong linear grid ranged from
cxmin to cxmax
and divided into given number of equal intervals. See expression
syntax for more details about available functions and operators.
Series Properties dialog box should be used to change various parameters of
the selected series, grouped on two tabs - Data and View:
Data Tab:
Data - based or Parametric radio buttons determine series type. For data -
based series, you should define data range (first line, last line and associated
worksheet). If worksheet is not selected, or first line is greater than last
line, or equal to -1, series is treated as empty and will not be displayed. For
functional series, define parameter range and number of points.
X/Y Axis coordinates - select column (only for data - based series) and
expression (required for parametric series).
View Tab:
Show points - check this flag and define point attributes if you want to
display points on the plot curve.
Show lines - check this flag and define line properties if you want to
connect curve points with lines. If you uncheck both flags the series will be
not empty, but invisible. For your convenience, there's curve preview at this
tab.
Caption - like column caption, the plot series can have associated text
string that should be used as a description.
X/Y Axis - select which pair of plot axes should be used to define
coordinate plane. Notice: in DM2003, any plot actually have four
independent coordinate planes, and each series associated with its own
coordinate system! Keep in mind that when you select (or make current)
another series with different set of associated axes, real coordinates
implicitly change as well.
Visible flag - determines whether this series should be displayed.
Example: in many cases the electrical conductivity of
semiconductors obeys so-called "activation law": R~exp(Ea/kT).
You can easily linearize R(T) dependence and determine activation energy Ea
if you plot ln(R) vs. 1/T: just set Y expression to "ln(cy)" and X expression
to "1/cx", then use Ruler tool to determine curve slope.
DM2003 has powerful graphic engine that can display not only "raw" numeric
data, but arbitrary functions on the given data calculated dynamically without actual
data changes. Series may be either data or functional. Data series must be
associated with worksheet and display worksheet data (possibly transformed by expressions).
Functional (or parameterized) series don't use numeric data; instead, point coordinates are
defined as a result of evaluation of X and Y expressions, both depend on cx
parameter whose values belong linear grid ranged from
cxmin to cxmax
and divided into given number of equal intervals. See expression
syntax for more details about available functions and operators.