Compare 2D data

Starting in Sept, 2001, NUTS has the ability to display a "mask" of peak positions overlaid on a 2D plot.

This is a "non-2-letter" command and requires NUTS-Pro operating in the arrayed mode.

The "mask" is created by opening a dataset and picking peaks using the DP subroutine.  After all peaks are picked, the file is saved.  The peak list is automatically saved in the file.

Then the second file is opened, and 2D mode entered.  Compare is used to display the peaks from the first dataset overlaid on the contour plot of the second dataset.  This is illustrated below for HMQC and HMBC spectra of codeine.  The HMQC data file was opened, peak-picked, and saved.  Then the HMBC file was opened, the contour plot displayed, and compare -m X typed.  The previously saved HMQC file was selected, and its peaks are indicated with X.  The font is set with FJ.

The compare command can take one or more arguments, which are specified in a unix-like syntax.

compare   ask for a filename for 2D comparison
compare <filename>   compare to specified file
compare -on  or  compare -n   turns on compare display when doing 2D display
compare -off  or  compare -f    turns off compare display when doing 2D display
compare -clear   or   compare -c   clears the 2D comparison list
compare -marker X   or    compare -m X     set marker letter for this file to "X" and ask for a filename
compare -m X <filename>    compare to filename using marker "X"

If no filenames are given in the command line, a dialog box will be presented to the user allowing selection of a filename for the compare operation. This is true regardless of whether a -m letter assignment is given. If a -m letter assignment is not given by the user, then the first comparison file uses the letter "A", the second comparison file uses letter "B" and so on.

Last updated: 3/6/06