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+C----------------------------------------------------------------------
+ subroutine ftpi1b(ounit,nvals,incre,chbuff,status)
+
+C Write an array of Integer*1 bytes to the output FITS file.
+
+ integer nvals,incre,ounit,status,i,offset
+ character*1 chbuff(nvals)
+
+C ounit i fortran unit number
+C nvals i number of pixels in the i2vals array
+C incre i byte increment between values
+C chbuff c*1 array of input byte values
+C status i output error status
+
+ if (incre .le. 1)then
+ call ftpcbf(ounit,0,nvals,chbuff,status)
+ else
+C offset is the number of bytes to move between each value
+ offset=incre-1
+ call ftpcbf(ounit,0,1,chbuff,status)
+ do 10 i=2,nvals
+ call ftmoff(ounit,offset,.true.,status)
+ call ftpcbf(ounit,0,1,chbuff(i),status)
+10 continue
+ end if
+ end