knitr: child document in different directory

问题

I can use the following code for child document if it is in the same directory.

<<child-demo, child=knitr-input-child.Rnw, eval=TRUE>>=
@

I wonder how to use child document if it is not in the same directory of master document. Thanks in advance for your help and time.

回答1:

This can be considered as a bug. Now I have fixed it on GitHub. Note, however, you need to setwd() to the directory of your master document before using knit(), otherwise knit() may not be able to find a child inputdir/child.Rnw. Please see if the development version works for you. Thanks!

来源：https://stackoverflow.com/questions/9041589/knitr-child-document-in-different-directory