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## using specifier functions

These functions are valid only in the context of data input. Usually this means use in an expression that provides an input field of the using specifier in a plot, splot, fit, or stats command. However the scope of the functions is actually the full clause of the plot command, including for example use of columnhead in constructing the plot title.

Subtopics

- column
- columnhead

- stringcolumn
- valid