Programs of the NMRPipe System
pcaNMR: Principal Component Analysis PCA Decomposition of Regions in NMRPipe-format Data

Flag	Argument	Default	Description
`-in`	`inName ...`		Input Name, Template, or List.
`-reg`	`regList`	`Full`	Point Coords of Region for PCA. Requires -in option.
`-nc`	`numComp`	`4`	Number of Components. (Use Zero for Auto)
`-itmax`	`itmax`	`50`	Max Iterations Per Component.
`-conv`	`cTol`	`1e-6`	Convergence Tolerance.
`-noverb`		`No`	Verbose Mode Off.

Initial Conditions for Iteration:

`-avg`			Use Average Vector.
`-proj`			Use Projection.
`-maxvec`			Use Vector with Max Height.
`-first`			Use First Vector (Default) Also: -noavg.

Scaling Options:

`-center`		Use Mean-centering.
`-scale`		Use Variance Scaling.
`-autoScale`		Use Both Centering and Scaling.
`-autoScale`		Use Both Centering and Scaling.
`-mask`	`maskName`	2D Mask File.

Residual Test for Rank Estimation and Auto Component Count:

Residual Test Method (Choose Only One):

`-nores`			No Residual Test (Default).
`-maxres`			Test by Maximum Residual. Requires -thresh flag.
`-expl`			Test explained var.
`-maxchi`			Test both Maximum Residual and Chi-Square. Requires -noise flag.
`-chi`			Test by Chi-Square. Requires -noise flag.

Output Files: