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tpsheet6.hlp
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** File: TPSheet6.hlp
** Index: 26
** Sheet View's Math Menu Commands
█ Math menu
This menu contains commands that
perform advance mathematical calculations.
These calculations include interpolation,
curve fitting, data smoothing, digital
filtering and many more.
█ Interpolation
See TpSht_01.hlp (Index 40).
█ Fitting
See TpSht_01.hlp (Index 40).
█ Fourier Transform
See TpSht_02.hlp (Index 41).
█ Windowing
See TpSht_02.hlp (Index 41).
█ Filtering
See TpSht_03.hlp (Index 42).
█ Smoothing
See TpSht_03.hlp (Index 42).
█ Transformation
The Math | Transformation command lets
you perform mathematical transformation of
columns. This command displays the
Transformation dialog box. The
Transformation dialog box contains the
following fields:
Formula: Enter the transformation
formula. The syntax for equation input
is described in Section 6.4.2 and
Section 6.6.
IndColumn List: List of columns of the
data sheet. Use this to select all
columns that are used in the
transformation.
DesCol Pos: Set the destination column
position.
In the function string, the left side
of the '=' is the column name to be used
to store data after transformation. All
the variables on the right side of '='
(independent variables) must be a column
name which already exist in the current
data sheet.
Note: You need to mark all the independent
variables in the column list. This is to
declare independent variables you want to
use for the transformation.
█ Differential
This command takes the numerical
derivative of one column with respect to
another column.
█ Integral
Calculate the numerical integral of
two columns. This can be used to compute
the area under a curve.
█ Special
Under this menu, there are three
special mathematical calculations:
█ Histogram
This command lets you create histogram
data based on a column of data.
Histogram data is created based on
experimental data. The X axis of a
histogram shows the range of values of
the experiment. The Y axis of the
histogram shows how many times each of
the value occurs. The number of
intervals for the X axis is specified in
the Create Histogram Data dialog box by
the value field IntvlNum.
█ 3D Histogram
This command displays the Create 3D
Histogram Data dialog box. A 3D histogram
data is created based on experimental
data with pairs of (X,Y) values. The X
axis of a 3D histogram shows the range of
X-values of the experiment and the Y axis
of a 3D histogram shows the range of
Y-values of the experiment. The Z axis
of the 3D histogram shows how many times
each of the (X,Y) value occurs. The
numbers of intervals for X and Y axes are
specified in the Create 3D Histogram Data
dialog box by the value fields xMeshNum
and yMeshNum.
█ 3D Mesh Data
This command creates 3D mesh data using
the inverse distance weighting method for
xyz-triplet scattered data.