le="font-family:monospace">value</SPAN> with error <SPAN style="font-family:monospace">error</SPAN> (<SPAN style="font-family:monospace">abserr</SPAN>=T or F).

<P>
<SPAN style="font-family:monospace">data_file</SPAN>: name of data file with data, `<SPAN CLASS="MATH"><IMG
 STYLE=""
 SRC="img241.svg"
 ALT="$=$"></SPAN>' for <SPAN style="font-family:monospace">search_file</SPAN>,
 `<SPAN CLASS="MATH"><IMG
 STYLE=""
 SRC="img14.svg"
 ALT="$&lt;$"></SPAN>' for stdin (default `<SPAN CLASS="MATH"><IMG
 STYLE=""
 