Add a set of fixed loadings to a flash fit object.
flash_add_fixed_l(data, LL, f_init = NULL, fixl = NULL, init_fn = "udv_si")
| data | A flash data object. |
|---|---|
| LL | The loadings, an n by K matrix. Missing values will be initialized by the mean of the relevant column (but will generally be re-estimated when refitting the model). |
| f_init | A flash fit object to which loadings are to be added (if NULL then a new fit object is created). |
| fixl | An n by K matrix of TRUE/FALSE values indicating which elements of LL should be considered fixed and not changed during updates. Default is to fix all non-missing values, so missing values will be updated when f is updated. |
| init_fn | An initialization function, which takes as input an |
A flash fit object, with loadings initialized from LL, and corresponding factors initialized to 0.