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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.
-