我用的时biplot(pca)命令，然后每次图都是空白，并且报错：






*** caught segfault ***
address 0x0, cause 'unknown'


Traceback:
1: text.default(x, xlabs, cex = cex[1L], col = col[1L], ...)
2: text(x, xlabs, cex = cex[1L], col = col[1L], ...)
3: biplot.default(t(t(scores[, choices])/lam), t(t(x$loadings[,     choices]) * lam), ...)
4: biplot.princomp(pca)
5: biplot(pca)


Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace