Displaying 1 result from an estimated 1 matches for "leader_no".
2005 Oct 04
2
newbie questions - looping through hierarchial datafille
...tree leader;
if tag = 'A' then input @3 inventory $.;
if tag = 'X' then input @3 stratum_no $. total $. yearest $. ;
if tag = 'P' then input @3 plot_no $. age $. slope $. species $;
if tag = 'T' then input @3 tree_no $. frequency ;
if tag = 'L' then input @3 leader_no $ diameter height ;
if tag = 'F' then input @3 start $ finish $ feature $;
if tag = 'F' then output;
run;
proc sort data = datafile;
by inventory stratum_no plot_no tree_no leader_no;
* calculate mean dbh in each plot
data dbh
set datafile;
by inventory stratum_no plot_no tr...