search for: startprob

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2013 Apr 16
1
HMM Package parameter estimation
...ers are not going to be exactly the same as the known/true parameters, but these are nowhere close. Below is my code used. Any ideas or possible suggestions regarding this issue would be greatly appreciated? library(HMM) ## DECLARE PARAMETERS OF THE KNOWN MODEL states = c(1,2,3) symbols = c(1,2) startProb = c(0.5,0.25,0.25) transProb = matrix(c(0.8,0.05,0.15,0.2,0.6,0.2,0.2,0.3,0.5),3,3,TRUE) emissionProb = matrix(c(0.9,0.1,0.2,0.8,0.7,0.3), 3,2,TRUE) # CREATE THE KNOWN MODEL hmmTrue = initHMM(states, symbols, startProb, transProb , emissionProb) # SIMULATE 1000 OBSERVATIONS OF THE KNOWN MODEL ob...
2010 Feb 10
2
How to create probeAnno object?
Hi,     I want to use segChrom() method in tilingArray package. For that I need to create a probeAnno object. I could not find much much info by ?probeAnno. I need help in creating  probeAnno object. Snap shot of the file(.txt): chr1 2500014 2500038 + 0.232689943122845 chr1 2500039 2500063 + 2.60502410304227 chr1 2500062 2500086 + 0.0756595313279895 chr1 2500080 2500104 + 0.78574617788405 chr1