getColNums.Rd
Get column numbers given starting values and regression specification
getColNums(start_list, reg_spec_data, alpha, j)
start_list | starting values (can be NA's) to be fd into sfn_start_val function |
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reg_spec_data | result of ensureSpecRank function; regression matrix with full rank |
alpha | column vector of quantiles to be estimated |
j | index of quantile currently being calculated |
If start_list is supplied, then returns the correct column numbers to be used in regression. Otherwise, it returns NULL.