	This is part of the ves module
	It is only available if you configure PLUMED with ./configure –enable-modules=ves . Furthermore, this feature is still being developed so take care when using it and report any problems on the mailing list.

Combining other basis functions types

Compulsory keywords

BASIS_FUNCTIONS

Labels of the basis functions that should be combined. Note that the order used matters for the ordering of the basis functions. This needs to be kept in mind when restarting from previous coefficients.

Options

DEBUG_INFO

( default=off ) Print out more detailed information about the basis set. Useful for debugging.

Examples

Here we define both Fourier cosine and sine expansions of order 10, each with 11 basis functions, which are combined. This results in a total number of 21 basis functions as only the constant from is bf_cos is used.

bf_cos: BF_COSINE MINIMUM=-pi MAXIMUM=+pi ORDER=10
bf_sin: BF_SINE   MINIMUM=-pi MAXIMUM=+pi ORDER=10
bf_comb: BF_COMBINED BASIS_FUNCTIONS=bf_cos,bf_sin

In principle this is the same as using BF_FOURIER with ORDER=10 but with different ordering of the basis functions. Note that the order used in BASIS_FUNCTIONS matters for the ordering of the basis functions, using BASIS_FUNCTIONS=bf_sin,bf_cos would results in a different order of the basis functions. This should be kept in mind when restarting from previous coefficients.