The Annotation Template

Move the pointer into the signal window and click left. WAVE 's Annotation Template window appears (see figure 2.4).

**Figure 2.4:** The *Annotation Template* window.
$\begin{figure}\centerline{\epsfig{file=annotation-template}}\index{Annotation Template window@{\sf Annotation Template} window} \end{figure}$

The contents of the Annotation Template window indicate what type of annotation will be inserted if you decide to insert an annotation. Click right on the Type: $\Ovalbox{\small\sf \ensuremath{\nabla}}$ abbreviated menu button. The Type menu appears (see figure 2.5).

**Figure 2.5:** The *Type* menu.
$\begin{figure}\centerline{\epsfig{file=type-menu}}\index{Type menu@{\sf Type} menu} \end{figure}$

Select `A Atrial premature beat' from the Type menu by clicking left on it. This action dismisses the Type menu, and your selection now appears in the Annotation Template window to the right of the Type: $\Ovalbox{\small\sf \ensuremath{\nabla}}$ menu button. The other fields of the Annotation Template can be ignored for this exercise.

Single-character annotation mnemonics that appear in the Annotation Template's Type menu can be used as shortcuts during annotation editing. (These mnemonics are the same as those used by WAVE to indicate annotations in the signal window.) Instead of calling up the Type menu, you may simply type the mnemonic at any time while the pointer is in the signal window, provided that the Annotation Template window is open. If you type a recognized mnemonic, the Annotation Template is updated immediately to reflect your choice.

$\begin{wrapfigure}{r}{6.3cm} \mbox{\epsfig{file=noedit}} \end{wrapfigure}$

Annotation editing is disabled by default, to avoid inadvertent modification of annotation files. If you now move the pointer into the signal window and click the middle button, this action is understood to mean that you wish to insert an annotation of the type shown in the Annotation Template at the location indicated by the pointer. Since WAVE cannot satisfy this request until annotation editing has been enabled, a notice box (shown above) appears to warn you that no action has been taken. Click left on $\ovalbox{\rule[-.3mm]{0cm}{2.5mm}\small\sf ~Continue~}$ to dismiss the notice box.

$\begin{wrapfigure}{l}{3cm} \mbox{\epsfig{file=allow-edit}} \index{Edit menu@{\sf Edit} menu} \end{wrapfigure}$

To enable annotation editing, click right on $\ovalbox{\rule[-.3mm]{0cm}{2.5mm}\small\sf ~Edit~\ensuremath{\nabla}~}$ , and click left on the Allow editing selection in the Edit menu. (Your selection from the Edit menu persists for the duration of your WAVE session, unless you return to the Edit menu to change it. Thus it is sufficient to enable annotation editing once if you plan to edit several records in a single session.)

George B. Moody (george@mit.edu)
2019-03-08