https://github.com/cran/quantreg
Tip revision: c4055f92eb9024ebdee36ac5965ff8a27a934016 authored by Roger Koenker on 23 September 2013, 00:00:00 UTC
version 5.05
version 5.05
Tip revision: c4055f9
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