This is a follow up to Use and Modify.
To make it even easier to work with your dinosaur size estimation functions you decide to create a function that lets you specify which dinosaur group you need to estimate the size of by name and then have the function automatically choose the right parameters.
Create a new function get_mass_from_length_by_name()
that takes two arguments,
the length
and the name of the dinosaur group. Inside this function use
if
/else if
/else
statements to check to see if the name is one of the
following values and if so set a
and b
to the appropriate values.
a
= 10.95
and b
= 2.64
(Seebacher 2001).a
= 0.73
and b
= 3.63
(Seebacher 2001).a
= 214.44
and b
= 1.46
(Seebacher 2001).Once the function has assigned a
and b
have it run get_mass_from_length()
with the appropriate values and return the estimated mass.
Run the function for:
Challenge (optional): If the name doesn’t match any of these values have the
function return NA
and print out a message that it doesn’t know how to convert
that group.