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2009 Apr 08
3
MLE for bimodal distribution
Hello everyone, I'm trying to use mle from package stats4 to fit a bi/multi-modal distribution to some data, but I have some problems with it. Here's what I'm doing (for a bimodal distribution): # Build some fake binormally distributed data, the procedure fails also with real data, so the problem isn't here data = c(rnorm(1000, 3, 0.5), rnorm(500, 5, 0.3)) # Just to check
2009 May 30
1
A problem about "nlminb"
Hello everyone! When I use "nlminb" to minimize a function with a variable of almost 200,000 dimension, I got the following error. > nlminb(start=start0, msLE2, control = list(x.tol = .001)) Error in vector("double", length) : vector size specified is too large I had the following setting options(expressions=60000) options(object.size=10^15) I have no idea about what might be wrong. Any suggestion is highly appreciated!! Thanks!! popo...
2012 Jun 23
9
[PATCH 0/5] btrfs: lz4/lz4hc compression
WARNING: This is not compatible with the previous lz4 patchset. If you''re using experimental compression that isn''t in mainline kernels, be prepared to backup and restore or decompress before upgrading, and have backups in case it eats data (which appears not to be a problem any more, but has been during development). These patches add lz4 and lz4hc compression