| array.to.xxyy | Convert (p x k x n) data array into 2D data matrix | 
| create.pw.be | Principal warps | 
| HomoMidSag | HomoMidSag dataset | 
| md.distri | Mardia-Dryden distribution | 
| papionin | papionin dataset | 
| ssim.distri | Self-similar distribution | 
| tps.all | Thin plate spline mapping (2D and 3D) for several sets of landmark coordinates | 
| xxyy.to.array | Convert landmark data matrix into array (p x k x n) |