Skip to contents

Simulated minke whale data

Source: R/dsdata.R
minke.Rd

Data simulated from models fitted to 1992/1993 Southern Hemisphere minke whale data collected by the International Whaling Commission. See Branch and Butterworth (2001) for survey details (survey design is shown in figure 1(e)). Data simulated by David Borchers.

Format

data.frame with 99 observations of 5 variables:

  • Region.Label stratum label ("North" or "South")

  • Area stratum area

  • Sample.Label transect identifier

  • Effort transect length

  • distance observed distance

  • object unique object ID

Source

Shipped with the Distance for Windows.

Details

Data are included here as both R data and as an Excel spreadsheet to illustrate the "flat file" input method. See flatfile for how to load this data and an example analysis.

References

Branch, T.A. and D.S. Butterworth (2001) Southern Hemisphere minke whales: standardised abundance estimates from the 1978/79 to 1997/98 IDCR-SOWER surveys. Journal of Cetacean Research and Management 3(2): 143-174

Hedley, S.L., and S.T. Buckland. Spatial Models for Line Transect Sampling. Journal of Agricultural, Biological, and Environmental Statistics 9, no. 2 (2004): 181-199. doi:10.1198/1085711043578 .

Examples

data(minke)
head(minke)
#>   Region.Label  Area Sample.Label Effort distance object
#> 1        South 84734            1  86.75     0.10      1
#> 2        South 84734            1  86.75     0.22      2
#> 3        South 84734            1  86.75     0.16      3
#> 4        South 84734            1  86.75     0.78      4
#> 5        South 84734            1  86.75     0.21      5
#> 6        South 84734            1  86.75     0.95      6