1111
1212 These columns of \code {penguins } are a subset of the more extensive
1313 \code {penguins_raw } data frame which results from reading the original
14- data , resulting in only numeric (double precision ), character and Date variables.
14+ data , containing only numeric (double precision ), character and Date variables.
15+ \code {penguins_raw } additionally contains nesting observations and blood isotope data.
1516}
1617\usage {
1718penguins
@@ -30,8 +31,35 @@ penguins_raw
3031 \item {year }{an integer denoting the study year (2007 , 2008 , or 2009 )}
3132 }
3233
33- \code {penguins_raw } is a data frame with 344 rows and 18 variables :
34- ............ ..
34+ \code {penguins_raw } is a data frame with 344 rows and 18 variables.
35+
36+ 8 columns correspond to columns in \code {penguins }, though with different variable names
37+ and / or classes :
38+ \describe {
39+ \item {Species }{a character string }
40+ \item {Island }{a character string }
41+ \item {Culmen Length (mm )}{a number denoting bill length }
42+ \item {Culmen Depth (mm )}{a number denoting bill depth }
43+ \item {Flipper Length (mm )}{an number denoting flipper length }
44+ \item {Body Mass (g )}{a number denoting body mass }
45+ \item {Sex }{a character string }
46+ \item {Date Egg }{a Date denoting when study nest observed with 1 egg (sampled ).
47+ The year component of this date is the `year` column in \code {penguins }}
48+ }
49+
50+ There are 10 further columns :
51+ \describe {
52+ \item {studyName }{a character string denoting the sampling expedition from which data were collected , generated , etc. }
53+ \item {Sample Number }{a number denoting the continuous numbering sequence for each sample }
54+ \item {Region }{a character string denoting the region of Palmer LTER sampling grid }
55+ \item {Stage }{a character string denoting reproductive stage at sampling }
56+ \item {Individual ID }{a character string denoting the unique ID for each individual in dataset }
57+ \item {Clutch Completion }{a character string denoting if the study nest observed with a full clutch , i.e. , 2 eggs }
58+ \item {Delta 15 N (o / oo )}{a number denoting the measure of the ratio of stable isotopes 15N : 14N }
59+ \item {Delta 13 C (o / oo )}{a number denoting the measure of the ratio of stable isotopes 13C : 12C }
60+ \item {Comments }{a character string with text providing additional relevant information for data }
61+ \item {Set }{a character string denoting whether the bird featured in the test or train set (or \code {NA } for neither ) in the original analysis (see References ). }
62+ }
3563}
3664\source {
3765 \describe {
@@ -42,17 +70,13 @@ penguins_raw
4270 ver 5 . Environmental Data Initiative , \doi {10.6073 / pasta / 98b16d7d563f265cb52372c8ca99e60f }. }
4371
4472 \item {Gentoo penguins : }{Palmer Station Antarctica LTER and K. Gorman (2020 ).
45- Structural size measurements and isotopic signatures of foraging
46- among adult male and female Gentoo penguin (Pygoscelis papua )
47- nesting along the Palmer Archipelago near Palmer Station , 2007 - 2009
48- ver 5 . Environmental Data Initiative , \doi {10.6073 / pasta / 7fca67fb28d56ee2ffa3d9370ebda689 }. }
73+ \doi {10.6073 / pasta / 7fca67fb28d56ee2ffa3d9370ebda689 }. }
4974
5075 \item {Chinstrap penguins : }{Palmer Station Antarctica LTER and K. Gorman. 2020 .
51- Structural size measurements and isotopic signatures of foraging
52- among adult male and female Chinstrap penguin (Pygoscelis antarcticus )
53- nesting along the Palmer Archipelago near Palmer Station , 2007 - 2009
54- ver 6 . Environmental Data Initiative , \doi {10.6073 / pasta / c14dfcfada8ea13a17536e73eb6fbe9e }. }
76+ \doi {10.6073 / pasta / c14dfcfada8ea13a17536e73eb6fbe9e }. }
5577 }
78+
79+ The title naming convension for the source for the Gentoo and Chinstrap data is that same as for \enc {Ad élie }{Adelie } penguins.
5680}
5781\references {
5882 Gorman , K. B. , Williams , T . D. and Fraser , W. R. (2014 )
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