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Logistic regression using probit model

By Aruna | Feb 09, 2018 01:57PM CET

Hi,
I am using logistic regression (Probit model) in XLSTAT Base to determine lethal dose values (LD50 & LD99). My response variable is in the aggregated data form (sum binary). Should I enter the control mortality valued under "corrective weights" in options?
I would be grateful for your help.

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By Efthalia | Feb 12, 2018 10:36AM CET | XLSTAT Agent

Hello Aruna,

This option should be used when the number of observations for the different classes for the dependent variables is not uniform. The selected variable should contain weights assigned to each observation.

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