this third nmr data set can be a severely truncated data set without significantly compromising the integrity of the determined 3d nmr data in process 100 a model is formed from the pair of 2d data projections and fit to the third potentially severly truncated nmr data set after fitting the model to the third nmr data set the model can be used to represent the nmr information process 100 begins with action 110 which calls for the provision of two dimensional 2d projections of the desired 3d information these projections are also conventionally termed faces of a 3d nmr experiment these projections are obtained by performing a 2d nmr experiment in the selected dimensions or by reference to a previously performed experiment optionally theoretical formulations for the 2d faces could be utilized following action 110 action 120 calls for an analysis of the obtained 2d projections to determine significant features of the projections in an nmr data set these features relate to the spectral peaks and include the peak frequencies and linewidths of those peaks in the 2d projections these features are acquired through data analysis of the 2d projections with a lineshape fitting routine useful for extracting peak frequencies and linewidths any of various peak picking routines can be used for this purpose including for example the felix 2d module software by accelrys inc of 300 lanidex plaza parsippany n j 07054 once determined the features of the 2d projections are correlated by matching feature pairs in action 130 the preferred method to correlate features is to match a common coordinate value of the various features along a common axis of the 2d projections the match can be exact or merely determined within a predetermined error range which range can be selected based.