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3 10 Appendix B. CD Tools

with grey colour. The program also shows the number of line segments obtained
and lists the length (number of samples), accumulated length and slope of each
line segment in a "results" list box.
3. Perform signal labelling by specifying two slope thresholds, s, and s2. Line
segments with absolute slope values below s, are labelled h (horizontal) and
displayed green. Above s, are labelled u (up) or d (down), according to the slope
sign (positive or negative) and are displayed with red or cyan colour,
respectively. Above s2 are labelled U (large up) or D (large down), according to
the slope sign (positive or negative) and are displayed with magenta or blue
colour, respectively. The labels are shown in the "results" list box.
4. Specify a state transition table of a finite-state automaton, either by directly
filling in the table or by reading in the table from a text file (the "Table" option
must be checked then), where each line corresponds to a table row with the
symbols separated by commas. The table has a maximum of 50 rows. The letter
"F" must be used to designate final states.
5. Parse the signal. Line segments corresponding to final states are shown in black
colour. State symbols resulting from the parse operation are shown in the
"results" list box.

The contents of the "results" list box can be saved in a text file. The user can
perform parsing experiments for the same string by modifying the state transition
table.
The program also allows the user to parse any string read in with the "String"
option checked. The corresponding text file must have a string symbol (character)
per line.

Author: JP Marques de S6, Engineering Faculty, Oporto University.