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Irrelevant play

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This commit is contained in:
Arnar Flatberg
2007-08-02 11:19:16 +00:00
parent 2d419a9862
commit 438e7cb918
3 changed files with 38 additions and 26 deletions
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8
scripts/lpls/lpls.py
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@@ -365,7 +365,7 @@ def correlation_loadings(D, T, P, test=True):
def cv_lpls(X, Y, Z, a_max=2, nsets=None,alpha=.5):
def cv_lpls(X, Y, Z, a_max=2, nsets=None,alpha=.5, mean_ctr=[2,0,1]):
"""Performs crossvalidation to get generalisation error in lpls"""
cv_iter = select_generators.pls_gen(X, Y, n_blocks=nsets,center=False,index_out=True)
k, l = Y.shape
@@ -374,7 +374,7 @@ def cv_lpls(X, Y, Z, a_max=2, nsets=None,alpha=.5):
T, W, P, Q, U, L, K, B, b0, evx, evy, evz = nipals_lpls(xcal,ycal,Z,
a_max=a_max,
alpha=alpha,
mean_ctr=[2,0,1],
mean_ctr=mean_ctr,
verbose=False)
for a in range(a_max):
Yhat[a,ind,:] = b0[a][0][0] + dot(xi, B[a])
@@ -387,7 +387,7 @@ def cv_lpls(X, Y, Z, a_max=2, nsets=None,alpha=.5):
rmsep = sqrt(sep.mean(1))
return rmsep, Yhat, class_err
def jk_lpls(X, Y, Z, a_max, nsets=None, alpha=.5):
def jk_lpls(X, Y, Z, a_max, nsets=None, alpha=.5, mean_ctr=[2,0,1]):
cv_iter = select_generators.pls_gen(X, Y, n_blocks=nsets,center=False,index_out=False)
m, n = X.shape
k, l = Y.shape
@@ -401,7 +401,7 @@ def jk_lpls(X, Y, Z, a_max, nsets=None, alpha=.5):
T, W, P, Q, U, L, K, B, b0, evx, evy, evz = nipals_lpls(xcal,ycal,Z,
a_max=a_max,
alpha=alpha,
mean_ctr=[2,0,1],
mean_ctr=mean_ctr,
scale='loads',
verbose=False)
WWx[i,:,:] = W