Entry limit stepwise analysis

[Marion Pitz]

Dear all,

I am new to Tassel and I stumbled over a strange behaviour in the GUI. Maybe this has a reason that I missed:

I would like to enter a specific but very small value into the Entry limit (4.86E-7). If I paste this value to the GUI, it gets reduced to 0,0. I tried to find the lowest possible and apparently that is 0,00001. Is there a reason for this? And also, what would be your recommentation to move forward to use the actual value that we want?

Many thanks for your help,

Marion

[Terry Casstevens]

I think a workaround would be to use the TASSEL CLI.

We are discussing how to fix this in the GUI

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[Marion Pitz]

Dear Terry, 

thank you for your reply. Is it possible to use the stepwise analysis with the CLI? So far, I only saw options refering to the MLM.

Many greetings, Marion

[Terry Casstevens]

https://bytebucket.org/tasseladmin/tassel-5-source/wiki/docs/Tassel_Pipeline_Tutorial20160330.pdf


Usage:

StepwiseOLSModelFitterPlugin <options>

-modelType <Model type> : The model selection criteria used to
determine which terms enter the model and how many. Value must be one
of pvalue, bic, mbic, or aic [pvalue, bic, mbic, aic] (Default:
pvalue)

-enter <Entry limit> : The enter limit or maximum p-value for which a
term can enter the model [0.0..1.0] (Default: 0.01)

-exit <Exit limit> : A term exits the model on a backward step if its
p-value is greater than this value [0.0..1.0] (Default: 0.01)

-maxMarkers <Maximum markers> : The maximum number of markers that
will be fit, if the enter limit is not reached first [0..10000]
(Default: 20)

-nestMarkers <true | false> : Should markers be nested within a model
factor (Default: false)

-nestFactor <Nesting factor> : Nest markers within this factor.

-nperm <Number of permutations> : Number of permutations for the model
to determine an empirical alpha [0..100000] (Default: 0)

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