Mapping is the process of translating the database into the Daisy or other chart, by grouping fields with the same characteristics at nodes.

Consider the example, where a field, Fault, is mapped with a mapping type of 'Text' and a similar mapping format. For each different value of the field, a new node will be created in the chart in the arc corresponding to the mapping field, Fault.

The last group are new in Daisy 2003 and are a series of 'True'/'False' tests that are applied.

Several useful mapping formats are detailed :-

• Break - Numeric is used to create up to five nodes with break-points separating each.

• Day of Week maps the date as Sun, Mon, Tue etc.

• First Character, First Word, Last Word etc. are used to extract relevant parts of the text.

• Hour maps the time as 0, 1, 2 etc.

• Partition is used to split the data according to a step value.

• Phone Area, Phone Country, Phone Exchange and Phone Number are used to decode and format both nation-wide and International phone numbers.

• Soundex is used to analyse names that sound alike.

• Tens extracts the tens from the data calling the nodes, 0, 10, 20 etc.

• Test Outside Mean/SD tests whether numeric values lie outside of a range defined by the mean and a given number of standard deviations.

• Year-Month maps the date as something like 2001-Mar. This order is better than Mar-2001 as the nodes sort more readily into the correct order.

See the Manual or Mapping Format in the Help for a full list of mapping formats.

See Mapping in the Help for more details.