Using JMP - SAS

378 JMP Preferences Appendix A
Text Data Files
Table A.6 Preferences for Import Settings for Text Files
Preference
Import Settings
End Of Field
End Of Line
Table contains column
headers
Column Names are on
line
Data starts on line
When determining
column types
Description
Select the strategy JMP uses to open text files. The default selection is Use
these settings. In that case, you need to ensure that the settings reflect
your text files.
If you select Use Best Guess, JMP collects statistics in the text file on tabs,
commas, blanks, and a few other characters and uses a rule-based system to
decide what the file format might be. The rules try to make reasonable field
widths and a reasonable number of fields per line. If your data format is too
different from what the rules are designed to guess, JMP guesses incorrectly.
In that case, either use the wizard or explicitly describe your data in these
preference settings.
Select one or more characters to use as the delimiter that signifies the end of
a field when importing text data.
Select the Other option and enter a character to specify a delimiter that is
not listed.
Select one or more characters to use as the delimiter that signifies the end of
a line (row).
Select the Other option and enter a character to specify a delimiter that is
not listed.
Note that if double-quotes are encountered when importing text data, the
delimiter rules change to look for an end double-quote. Other text
delimiters, including spaces, that are embedded within the quotes are
ignored and treated as part of the text string.
Select this option if your text file contains columns names. If you select this
option, enter the line number where the column names are located in the
field next to Column Names are on line.
If you select the Table contains column headers option, enter the line
number where the column names are located in this field.
Enter the line number where the data starts in your text file.
Set how long JMP scans a text file to determine data types for the columns.
The default value is Scan whole file. Note that the Scan whole file option
can cause importing a text file to be slow for large files.
When your text file contains columns of missing data, select Treat empty
columns as numeric to import the columns as numeric rather than
character. A period, Unicode dot, NaN, or a blank string are possible
missing value indicators. This option is deselected by default.