shelltrace (version 3.5.1)

O1_input: Digitized growth increments in cross section of modern oyster.

Description

A dataset containing X- and Y-coordinates of digitized growth increments from the Crassostrea gigas #1 oyster used as an example in de Winter (2017)

Usage

data(O1_input)

Format

A data frame with 181 rows and 26 variables:

x_base

X-coordinate in pixels of bottom line on image

y_base

Y-coordinate in pixels of bottom line on image, second row value represents the day of the year

EMPTY1

Empty column

x_top

X-coordinate in pixels of top of Crassostrea gigas shell #1 (increment 0)

y_top

Y-coordinate in pixels of top of Crassostrea gigas shell #1 (increment 0), second row value represents the age in days (=0)

EMPTY2

Empty column

x_1

X-coordinate in pixels of increment 1

y_1

Y-coordinate in pixels of increment 1, second row value represents the age in days

EMPTY3

Empty column

x_2

X-coordinate in pixels of increment 2

y_2

Y-coordinate in pixels of increment 2, second row value represents the age in days

EMPTY4

Empty column

x_3

X-coordinate in pixels of increment 3

y_3

Y-coordinate in pixels of increment 3, second row value represents the age in days

EMPTY5

Empty column

x_4

X-coordinate in pixels of increment 4

y_4

Y-coordinate in pixels of increment 4, second row value represents the age in days

EMPTY6

Empty column

x_5

X-coordinate in pixels of increment 5

y_5

Y-coordinate in pixels of increment 5, second row value represents the age in days

EMPTY7

Empty column

x_6

X-coordinate in pixels of increment 6

y_6

Y-coordinate in pixels of increment 6, second row value represents the age in days

EMPTY8

Empty column

x_bottom

X-coordinate in pixels of bottom of Crassostrea gigas shell #1

y_bottom

Y-coordinate in pixels of bottom of Crassostrea gigas shell #1, second row value represents the age in days (= age of death)