search for: 200yr

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2010 Feb 17
2
Survival analysis
Dear all I have a dataset examining the probability of a population surviving (calculated from a logistic regression) of a species over a 200yr period. The predictor variables are either continuous but non-normal (e.g. temperature, oxygen) or categorical (e.g. channelisation), unfortunately I also have a large amount of missing values. Year Decline Temperature Oxygen Channelisation 1800 0.947758115 36.6 NA NA 1801 0.946135961 25.2 NA NA...