https://github.com/cran/quantreg
Tip revision: cba29dfbf1a823f21f866437ee96e8a2735c1708 authored by Roger Koenker on 13 February 2016, 00:52:06 UTC
version 5.21
version 5.21
Tip revision: cba29df
idmin.f
INTEGER FUNCTION IDMIN(N,X,INCX)
INTEGER I,N,INCX
DOUBLE PRECISION X(INCX,*),SMIN
C
C THIS FUNCTION RETURNS THE INDEX OF THE SMALLEST (ALGEBRAIC)
C COMPONENT OF X. ADAPTED FROM PORT3 LIBRARY -- FEB 2008.
C ONLY EVERY INCXTH COMPONENT OF X IS CONSIDERED.
C
IDMIN=0
IF(N.EQ.0) RETURN
SMIN=X(1,1)
IDMIN=1
DO 10 I=1,N
IF(SMIN.LE.X(1,I)) GO TO 10
SMIN=X(1,I)
IDMIN=I
10 CONTINUE
RETURN
END