Hello,



I am work with a linear regression model:

y=ax+b with the function of lm.

y= observed migration distance of butterflies

x= predicted migration distance of butterflies



Usually the result will show

if the linear term a is significantly different from zero based on the
p-value.

Now I would like to test if the linear term is significantly different from
one.

(because I want to know if the regression line (y=ax+b) is significantly
from the line with the linear term =1 and the intercept =0)



Please kindly advise if it is possible

to adjust some default parameters in the function to achieve the goal.

Thank you.


Elaine

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