# [MORPHMET] Trouble with 2-D morphomeric analysis in geomorph

```I am trying to do an analysis of three specimens. I am using semi-landmarks and
having trouble. perhaps someone can point out mt error? these are my results```
```
Generalized Procrustes Analysis
with Partial Procrustes Superimposition

-4 fixed landmarks
12 semilandmarks (sliders)
2-dimensional landmarks
6 GPA iterations to converge
Minimized Bending Energy used

Consensus (mean) Configuration

X           Y
[1,]  0.51447153 -0.03794928
[2,]  0.36957021  0.11431610
[3,] -0.11602250  0.19898458
[4,] -0.40489951  0.11095030
[5,] -0.43738229 -0.09965594
[6,] -0.20913543 -0.09698422
[7,]  0.04257626 -0.09131803
[8,]  0.29799009 -0.04811314

it should be three individuals with 4 landmarks and 4 sliders each. i want to
perform PCA on the procrustes coordinates. my code and data are below. Im new
to R and its probably an easy fix im just really confused. any help is greatly
appreciated.

Code:    Y <- arrayspecs(coordsrformat, k=2, p= ncol(coordsrformat)/2)

slidermatrix

Y.gpa <- gpagen(Y,curves=slidermatrix)
summary(Y.gpa)
plot(Y.gpa)

Y.gpa <- gpagen(Y,curves=slidermatrix,ProcD=FALSE )
summary(Y.gpa)
plot(Y.gpa)
a<-(Y.gpa\$coords)
plotTangentSpace(a)

slider matrix:

before  slide   after
5       6       7
7       8       1
1       2       3
3       4       5
1       8       7
7       6       5
5       4       3
3       2       1
1       2       3
3       4       5
5       6       7
7       8       1

coordsrformat:

1630    1827    1530    1549    1198    1345    908     1557    833     1840
1027    1895    1223    1907    1417    1887
2767    1081    2633    1581    2139    2047    1693    1753    1535    1159
1841    1067    2151    1009    2437    1071
2956    928     2936    1692    2112    2360    1300    1784    1304    1016
1700    888     2084    832     2480    872

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• [MORPHMET] Trouble with 2-D morphomeric analysis in geomo... Ian F