[R] Piecewise cubic Hermite interpolation

[Vladimir Eremeev]

Which function implements the piecewise cubic Hermite interpolation?

I am looking for equivalent of matlab's interp1 with the method = 'pchip'

Here is the reference

http://www.mathworks.com/access/helpdesk/help/techdoc/index.html?/access/helpdesk/help/techdoc/ref/interp1.html&
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