Adjusts an ns() basis matrix so that all terms are zero when x takes the specified centre value. When used in a model formula, this ensures that the regression intercept can be interpreted with respect to centred xvalue, rather than with respect to the xvalue of the first boundary knot.
Package details 


Maintainer  
License  GPL3 + file LICENSE 
Version  1.0.0 
Package repository  View on GitHub 
Installation 
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