search for: r_dt_val

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2004 Mar 24
1
R_DT_val accuracy (PR#6692)
Full_Name: M. Welinder Version: 1.8.1 OS: Solaris Submission from: (NULL) (65.213.85.227) Currently R has... #define R_D_Lval(p) (lower_tail ? (p) : (1 - (p))) /* p */ #define R_D_val(x) (log_p ? log(x) : (x)) /* x in pF(x,..) */ #define R_DT_val(x) R_D_val(R_D_Lval(x)) /* x in pF */ ...which is sub-optimal in the lower_tail==FALSE && log_p==TRUE case. Something like this ought to work better. #define R_DT_val(x) (log_p ? (lower_tail ? log(x) : log1p (-(x))) : (R_D_Lval(x))) Similarly for R_DT_Cval. This affects the accuracy...
2004 Apr 12
1
R 1.9.0 is release
...o Salloc and Srealloc are provided in S.h as wrappers for S_alloc and S_realloc, since current S versions use these forms. o The type used for vector lengths is now R_len_t rather than int, to allow for a future change. o The internal header nmath/dpq.h has slightly improved macros R_DT_val() and R_DT_Cval(), a new R_D_LExp() and improved R_DT_log() and R_DT_Clog(); this improves accuracy in several [dpq]-functions {for "extreme" arguments}. DEPRECATED & DEFUNCT o print.coefmat() is defunct, replaced by printCoefmat(). o codes() and codes<-() are defunc...
2004 Apr 12
1
R 1.9.0 is release
...o Salloc and Srealloc are provided in S.h as wrappers for S_alloc and S_realloc, since current S versions use these forms. o The type used for vector lengths is now R_len_t rather than int, to allow for a future change. o The internal header nmath/dpq.h has slightly improved macros R_DT_val() and R_DT_Cval(), a new R_D_LExp() and improved R_DT_log() and R_DT_Clog(); this improves accuracy in several [dpq]-functions {for "extreme" arguments}. DEPRECATED & DEFUNCT o print.coefmat() is defunct, replaced by printCoefmat(). o codes() and codes<-() are defunc...