summary_ch {RMark} | R Documentation |
Provides a summary for the capture histories
Description
For each release (initial capture) cohort, the number of recaptured
(resighted) individuals from that cohort is tallied for each of the
following occasions. A summary table with number released (initially
caught) and the number recaptured is given for each group if
bygroup=TRUE
.
Usage
summary_ch(x, bygroup = TRUE, marray = FALSE)
Arguments
x |
Processed data list; resulting value from process.data |
bygroup |
if TRUE, summary tables are created for each group defined in the data |
marray |
if TRUE, summary tables are m-arrays as in MARK |
Value
list of dataframes (one for each group in the data); each dataframe
has rows for each release cohort and columns for each recapture occasion.
The rows and columns are labelled with the occasion time labels. If
marray==FALSE
the first column is the number initially released and
the remaining columns (one for each recapture/resighting occasion) are the
number recaught in each of the following occasions and the number caught in
at least one of the occasions. If marray==TRUE
the first column is
the number released which includes those initially released and ones
released after recapture from a previous cohort. The remaining columns are
the number first recaught in each of the following occasions. Once
re-caught they become one of the following rows (ie release-recap pairs)
unless it is the last time they were captured and they were not released (eg
negative frequency).
Author(s)
Jeff Laake
Examples
data(dipper)
dipper.processed=process.data(dipper,groups=("sex"))
summary_ch(dipper.processed)
#$sexFemale
# Released 2 3 4 5 6 7 Total
#1 10 5 3 3 2 1 0 6
#2 29 0 11 6 6 4 2 11
#3 27 0 0 9 5 3 2 9
#4 23 0 0 0 11 7 4 13
#5 19 0 0 0 0 12 6 12
#6 23 0 0 0 0 0 11 11
#
#$sexMale
# Released 2 3 4 5 6 7 Total
#1 12 6 3 2 1 1 0 7
#2 20 0 9 2 1 0 0 9
#3 25 0 0 13 6 2 0 14
#4 22 0 0 0 15 9 7 16
#5 22 0 0 0 0 13 10 13
#6 23 0 0 0 0 0 12 12
summary_ch(dipper.processed,marray=TRUE)
#$sexFemale
# Released 2 3 4 5 6 7 Total
#1 10 5 1 0 0 0 0 6
#2 34 0 13 1 0 0 0 14
#3 41 0 0 17 1 0 0 18
#4 41 0 0 0 23 1 1 25
#5 43 0 0 0 0 26 0 26
#6 50 0 0 0 0 0 24 24
#
#$sexMale
# Released 2 3 4 5 6 7 Total
#1 12 6 1 0 0 0 0 7
#2 26 0 11 0 0 0 0 11
#3 37 0 0 17 1 0 0 18
#4 39 0 0 0 22 0 1 23
#5 45 0 0 0 0 25 0 25
#6 48 0 0 0 0 0 28 28