View source: R/get_expanded_comps.R
get_expanded_comps | R Documentation |
Conduct a two-stage expansion of length and age composition data. The first
stage expands data up to the tow level and the second stage expands the data
up the user-defined strata areas. This function is designed to be used with
catch pulled using pull_catch()
and biological data pulled using pull_bio()
.
get_expanded_comps(
bio_data,
catch_data,
comp_bins,
strata,
dir = NULL,
comp_column_name = "length_cm",
output = c("full_expansion_ss3_format", "tow_expansion_only",
"full_expansion_unformatted"),
two_sex_comps = TRUE,
input_n_method = c("stewart_hamel", "tows", "total_samples"),
partition = 0,
fleet = "Enter Fleet",
age_low = -1,
age_high = -1,
age_error = "Enter Numeric",
month = "Enter Month",
printfolder = "forSS3",
verbose = TRUE
)
bio_data |
A data frame of length-composition data returned from
|
catch_data |
A data frame of catch data returned from |
comp_bins |
Vector of intergers to bin length or age data by create expanded composition data.Values above or below the minimum or maximum values in the vector are grouped into the first size or plus group size, respectively. For example, creating length compositions that uses a vector bin of seq(10, 50, 2) would create 2 cm bins where fish length between [0, 11.99) would be included in the 10 cm bin, fish of length [12, 13.99) would be included in the 12 cm bin, and all fish [50- Inf) would be included in the 50 cm plus bin. |
strata |
A data frame that defines the strata and provides the
calculated areas for each strata returned from |
dir |
Directory where output will be saved. The directory where the file should be saved. If dir = NULL no output will be saved. |
comp_column_name |
The name of the column to create composition data for that
must be a string. This column can be is used to determine whether to format the
composition data for length or age compositions by looking for either age
(e.g., |
output |
Switch to specify how to return the composition data where the options
are c("full_expansion_ss3_format", "tow_expansion_only", "full_expansion_unformatted").
The default is |
two_sex_comps |
Default TRUE. If TRUE composition data will be formatted for a Stock Synthesis two-sex model and if FALSE composition data will be formatted for a single-sex model. |
input_n_method |
Determines the default input sample size to add to the composition data for SS3. There are three options: c("stewart_hamel", "tows", "total_samples") where the default is "stewart_hamel". |
partition |
Partition to assign the composition data based on the expected format for Stock Synthesis. Partition of 0 indicates that the composition data include all composition data, 1 for discarded composition data, and 2 for retained fish only. Default of 0. |
fleet |
A fleet number to assign the composition data to based on the expected format for Stock Synthesis. Default "Enter Fleet". |
age_low |
Lower age bin for all age composition data based on the expected format for Stock Synthesis. Default value of -1 which translates to the lowest age bin. |
age_high |
Upper age bin for all age composition data based on the expected format for Stock Synthesis. Default value of -1 which translates to the highest |
age_error |
Number of ageing error vector to apply to the age data based on Stock Synthesis. Default "Enter Age Error Vector". |
month |
Month the samples were collected based on the expected format for Stock Synthesis to determine the length/age estimate to compare to. Default "Enter Month". |
printfolder |
A string that will be appended to |
verbose |
A logical that specifies if you want to print messages and
warnings to the console. The default is |
A list or dataframe is returned depending upon output
.
The default output = "full_expansion_ss3_format"
returns a list of
expanded composition data by sex grouping (e.g., sexed and unsexed fish)
formatted for Stock Synthesis v.3.30+. If output = "full_expansion_unformatted"
a dataframe is returned of unformatted expanded composition data and if
output = "tow_expansion_only"
a dataframe is returned with the composition
data only expanded to the tow level (first stage expansion only).
Chantel Wetzel and Allan Hicks
See
get_input_n
for information on input sample size calculations.
## Not run:
bio <- pull_bio(
common_name = "lingcod",
survey = "NWFSC.Combo"
)
catch <- pull_catch(
common_name = "lingcod",
survey = "NWFSC.Combo"
)
strata <- CreateStrataDF.fn(
names = c("shallow_wa", "shallow_or", "shallow_nca", "shelf_wa", "shelf_or", "shelf_nca"),
depths.shallow = c(55, 55, 55, 183, 183, 183),
depths.deep = c(183, 183, 183, 350, 350, 350),
lats.south = c(46.0, 42.0, 40.10, 46.0, 42.0, 40.10),
lats.north = c(49.0, 46.0, 42.0, 49.0, 46.0, 42.0)
)
length_comps <- get_expanded_comps(
bio_data = bio,
catch_data = catch,
strata = strata,
comp_bins = seq(20, 70, 4),
comp_column_name = "length_cm"
)
## End(Not run)
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