Allow start file to be specified for mcmc samplers #3394
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ahnitz
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This allows a file to be provided that will be used for the starting positions of an MCMC sampler. This is different than using an initial distribution in that the file specifies exactly the points to use, rather than just an initial distribution. It's mostly equivalent to providing a checkpoint file, but it doesn't cause the random sampler to be reset. The way this is done is you provide
start-file = file/path/start.hdfin the[sampler]section of the config file. The start file is assumed to be an inference file with the same number of walkers/chains. The samples are pulled from the last iteration in that file.This also a fixes a bug in the
copyfunction inbase_hdfthat I came across while testing this.