This function provides multivariate and univariate Wald tests for
combinations of parameters from hlme, lcmm, multlcmm,
Jointlcmm or mpjlcmm models.
Arguments
- Mod
an object of class
hlme,lcmm,multlcmm,Jointlcmmormpjlcmm- pos
a vector containing the indices in
Mod$bestof the parameters to test- contrasts
a numeric vector of same length as pos. If NULL (the default), a simultaneous test of the appropriate parameters is realised. If contrasts is specified, the quantity to test is the dot product of pos and contrasts.
- name
a character containing the name the user wants to give to the test. By default, the name's test is the null hypothesis.
- value
the value(s) to test against. By default, test against 0.
Value
If contrasts is NULL, the function returns a matrix with 1 row and 2 columns containing the value of the Wald test's statistic and the associated p-value.
If contrasts is not NULL, the function returns a matrix with 1 row and 4 columns containing the value of the coefficient (dot product of pos and contrasts), his standard deviation, the value of the Wald test's statistic and the associated p-value.