Visual Guide to Peak-Picking
When you perform peak-picking, with the dedicated tool, iNMR ignores the peaks smaller than a given threshold. You can create the threshold explicitly, if you like, with an alt-click.
To correct a mistake, perform the operation again,
with a different threshold and the same selection.
When the threshold is higher than any peak, all the labels are removed.
In practice you don't need to create an explicit threshold, because the point
where you initially click with the mouse already defines an implicit threshold.
Click under the peaks and drag to create the labels.
Click over the peaks and drag to remove the labels.
A single click with the picker tool UNDER the curve of the spectrum,
creates a single label on top of the nearest peak.
If the label already exists, it is simply removed.
To remove the small ticks
on top of the peaks,
open the Preferences dialog
and set “Short Distance”
to zero.
Here are two special cases where normal peak-picking doesn't work. There is a filtering mechanism
that prevents the creation of too many labels, but there are instances in which you really want to
by-pass the filter and
create a label at a given frequency. In such a case, right-click to invoke the contextual menu
and select “Pick Peak” or, for a generic point, “Pick Mouse”.