about fitting a regression line

Thanks. I thought lm() function is for linear model, such as the
correlation below:
Y= aX + b

Start with the lm() function; i.e., see

  ?lm

-Don

--
Don MacQueen

Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062

On 6/14/17, 3:40 PM, "R-help on behalf of lily li" <
r-help-bounces at r-project.org on behalf of chocold12 at gmail.com> wrote:

    Hi R users,

    I have some data points (Xi, Yi), and they may follow such a pattern
Yi =
    cCOS(Xi) + d, how to find the c and d in R? which function to use?
Also,
    how to get the R2 and p value for this correlation? Thanks for any
kind of
    help.

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about fitting a regression line

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