Identifying the Type of Numeric Data
Overview
Raw data can be organized
in several ways. External files can contain data that is arranged
in columns or fixed fields. It is possible to specify a beginning
and ending column for each field.
However, the following
file contains nonstandard data, because one of the variable’s
values includes a special character, the dollar sign ($).
Figure 17.1 Raw Data File (Nonstandard)
The following external
file contains no special characters, but its data is free-format,
meaning that it is not arranged in columns. Notice that the values
for a particular field do not begin and end in the same column.
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