<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 98.1p1 release (March 2nd, 1998) originally by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>The TSA environment</TITLE> <META NAME="description" CONTENT="The TSA environment"> <META NAME="keywords" CONTENT="vol2"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <LINK REL="STYLESHEET" HREF="vol2.css"> <LINK REL="next" HREF="node238.html"> <LINK REL="previous" HREF="node236.html"> <LINK REL="up" HREF="node235.html"> <LINK REL="next" HREF="node238.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html4365" HREF="node238.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html4362" HREF="node235.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html4356" HREF="node236.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html4364" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="icons.gif/contents_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html4366" HREF="node238.html">Input data format</A> <B> Up:</B> <A NAME="tex2html4363" HREF="node235.html">MIDAS utilities for time</A> <B> Previous:</B> <A NAME="tex2html4357" HREF="node236.html">Scope of applications</A> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION001742000000000000000"> </A><A NAME="s:env"> </A> <BR> The TSA environment </H2> <P> Before any of the commands of the TSA package can be used, the package must be enabled by <TT>SET/CONTEXT TSA</TT>. <P> Internally, the functioning of the MIDAS TSA commands depends on a number of parameters whose values are stored in a number of keywords. The keywords specify the time lag or the frequency grid used in the results <TT>(START, STEP</TT> and <TT>NSTEPS)</TT>, parameters of statistics <TT>(ORDER)</TT> and names of I/O files. These keywords are created and given their initial default value (where applicable) by the command <TT>SET/CONTEXT TSA</TT>. The current values of all TSA-specific keywords can be inspected at any time with the <TT>SHOW/TSA</TT> command. The value of any keyword can be changed either by entering the desired parameter value together with any of the TSA commands using this keyword and by the commands <TT>SET/TSA</TT>, <TT>WRITE/KEYWORD</TT> and <TT>COMPUTE/KEYWORD</TT>. If on a command line a parameter is omitted, its value will by default be taken from the respective keyword. <P> Execution of the command <TT>DELAY/TSA</TT> for certain options requires the source code of a user-defined ACF function to be available in the local directory. The function name and calling sequence must follow the conventions layed down in the <TT>HELP</TT> information for the command <TT>DELAY/TSA</TT>. <P> <HR> <!--Navigation Panel--> <A NAME="tex2html4365" HREF="node238.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html4362" HREF="node235.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html4356" HREF="node236.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html4364" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="icons.gif/contents_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html4366" HREF="node238.html">Input data format</A> <B> Up:</B> <A NAME="tex2html4363" HREF="node235.html">MIDAS utilities for time</A> <B> Previous:</B> <A NAME="tex2html4357" HREF="node236.html">Scope of applications</A> <!--End of Navigation Panel--> <ADDRESS> <I>Petra Nass</I> <BR><I>1999-06-15</I> </ADDRESS> </BODY> </HTML>
