5.7 Use of the Graph (Ctrl-F6)
At pressing on a combination of keys Ctrl-F6 ("Graph") on the
screen at once will be drowed the graphic diagram, appropriate by a data,
contained in that field of a database, on which in a current moment there is
the cursor, on all records from a current file. If previously necessary
selection of a required category of records the diagram was carried
out will show structure of meanings of a current field just for
chosen records.
The kind of the diagram depends on a type of data
of that field of base, on meanings of which this diagram is built.
If this field is line - there will be the "Columns" diagram, each
column which will have size, proportional to amount of records met
in a database, meaning of a key field in which will
correspond to the name it column. All columns on the diagram will be
ordered on decrease of meaning, thus in the beginning always
will be columns with such meanings of a key field, which in a
current file there was the greatest amount, then - with such
meaning, which was hardly less, etc.
If all
columns of the diagram were not placed on the screen (in a case if of variants
of meaning(importance) of the given line field very much), on the diagram will
be shown only first 8 columns with the greatest meanings, and at
an exit from view of the diagram after pressing on a key
ESC on the screen will be displayed a small table with the list of ALL
variants of meanings of a key field, which were in an analyzed
file, with the indication of meaning of
amount for this column, as the menu, which is possible
scroll. There is the opportunity by pressing of Enter key on chosen
item this menu to make selection of all cards from a database with this
meaning. At pressing on ESC the user comes back in a usual
mode of work with a current file.
If the key field is numerical - in this case
instead of "Columns" diagram on the screen will be constructed the diagram of
"Distribution of density of information" with display on a scale
of meanings of the current field .