data_index_survey | R Documentation |
A data frame of index values for the standardized surveys that are relevant to this species.
data_index_survey
A data frame with four columns
Year: a four digit integer for year
dir: the directory where the data are stored in data-raw
surveyname: the survey name using characters
area: the model area of relevance, e.g., North
distribution: the assumed distribution used to fit the model
Fleet: a version of the strata with depth
Estimate_metric_tons: estimate in mt
SD_log: the log standard deviation
SD_mt: the standard deviation in normal space
strata: the stratafication the estimate pertains to
year: a four digit integer for year
obs: the estimate per year
se_log: the log standard error of the estimate
seas: equal to 7 because all fleets "operate" in the middle of the year
index: equal to 7 because all fleets "operate" in the middle of the year
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