However, the higher - variance variables tend to make
correspondingly higher contributions to the principal components, so the decision whether to equalize variances or not should be based on the scientific considerations of the climate information represented in each of the proxies.
An unqualified rejection of Karl Barth's dichotomy of theology and religion is a leitmotif throughout the book, and Barr has a
correspondingly high estimation of the
contributions to biblical theology of natural theology and philosophy (though which philosophy is never specified).