![](../logo.png)
Salmon Survival Indices
SalmonSurvCUI.Rd
Example data set for use in MARSS vignettes for the DLM chapter in the MARSS-package
User Guide. This is a 42-year time-series of the logit of juvenile salmon survival along with an index of April coastal upwelling. See the source for details.
Usage
data(SalmonSurvCUI)
Format
The data are provided as a matrix with time running down the rows. Column 1 is year, column 2 is the logit of the proportion of juveniles that survive to adulthood, column 3 is an index of the April coastal upwelling index.
Source
Scheuerell, Mark D., and John G. Williams. "Forecasting climate-induced changes in the survival of Snake River spring/summer Chinook salmon (Oncorhynchus tshawytscha)." Fisheries Oceanography 14.6 (2005): 448-457.
Examples
str(SalmonSurvCUI)
#> 'data.frame': 42 obs. of 3 variables:
#> $ year : int 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 ...
#> $ logit.s: num -3.46 -3.32 -3.58 -3.03 -3.61 -3.35 -3.93 -4.19 -4.82 -5.65 ...
#> $ CUI.apr: int 57 5 43 11 47 -21 25 -2 -1 43 ...