# # # Parameters for comparative gene prediction #---------------------------------------------- temperature 3 # temperature paves the distribution to sample exons # used to dodge local optima to be able to reach the global one # to low and it is possible to remain in a local optima # to high and no exon is sampled with high propability # -> he samples nearly only different exons # -> only low a posteriory values /MeaPrediction/x0_E -8 # default: -10 /MeaPrediction/x1_E 100 # default: 10 /MeaPrediction/y0_E 0.52 # default: 0.5 /MeaPrediction/alpha_E 1 # default: 1 /MeaPrediction/i1_E 0.25 # default: 0.25 /MeaPrediction/i2_E 0.85 # default: 0.75 /MeaPrediction/j1_E -3.5 # default: -5 /MeaPrediction/j2_E 7 # default: 5 # five points describing a piecewise linear function to ... # ... calculate a part of the exon score out of a posteriory values # in this case they are chosen to approximate (e^(4x)-8)/4 # CHANGE: e^(x) function is not better than linear... # Additional, to support hints all x>0.95 should give a VERY VERY high score # the alpha is a factor for this function # the function should be monotonically increasing # then, the score is in the interval alpha_E*(x0_E,x1_E) # for introns the same with _I instead of _E /MeaPrediction/r_be 0.5 # default: 0.5 /MeaPrediction/r_bi 0.5 # default: 0.5 # this values describe a function for an additional exon score ... # ... which is added to the other score # if one base (in the same frame/on the same strand) is sampled in ... # ... several gene structures, it should be rewarded, ... # ... because otherwise, in the case of many sampled exon with low ... # ... a posteriory values, every exon would get a negative score, ... # ... although they support each other partially /CompPred/exon_gain 0.51 # default: 2.0 /CompPred/exon_loss 0.51 # default: 2.0 # exon gain and loss rate (for prokaryotes gene gain/loss) # equality in this values is not unusual, otherwise ... # ... the number of genes is increasing/decreasing over time # for eukaryotes a low value should be picked (e.g. 0.000001) # for prokaryotes higher values probably make more sense (e.g. 0.5) # watch jounals to adjust this in the right way # for bacillus it is supposedly x=0.51 # the pentalty score is log( (1+e^(-2*x*t)) / (1-e^(-2*x*t)) ) # where t is the branch length /CompPred/phylo_factor 5 # default: 1 # the phylo_factor is a factor for this penalty score # if the whole penalty score can be much bigger than the ... # ... normal exon score, then the phylo tree counts more than ... # ... the a posteriory probability /CompPred/dd_factor 20 # default: 0.02 # dd_factor of 20 is probably ok for all species /CompPred/maxIterations 500 # default: 100 # number of iterations is just a computation time question # 500 is maybe ok /CompPred/ec_addend 0 # poster: -5 # default: 0 /CompPred/ec_factor 1 # poster: 0.66 # default: 0 # ec_factor is the a factor for the omega score # ec_addend + omega_score * ec_factor