I just encountered this problem myself. I learned that it is related to SAS Problem Note 55675 available at: http://support.sas.com/kb/55/675.html In short, it has to do with the File Import node being connected to the Start Group node when it is being used for either bagging or boosting. To overcome this problem, I attached the File Import node to a Save Data node  which was a terminal node. I used this to create a dataset in Data Sources. I then created an Input Data node, which was linked to the dataset in Data Sources rather than directly to the File Import node, and used it this node to begin the analysis.     ... View more

May I ask the further issue about duplicate data? If now, I'd like to select the duplicate data in macro and I do not know how many variables in each dataset. However, proc sort need to indicate the variables... So, how should I do to show up those duplicates? ... View more

I like that workaround! XML of the diagram or a quick screenshot, or both 🙂 When you have a chance, I am also very curious to know more about your learnings about cross validation. In particular, do you feel like you get more predictive power, or anything else you might share?   Thanks! ... View more

Hi, This SAS TS note appears to suggest meta issue when using file import node directly. http://support.sas.com/kb/55/675.html " Problem Note 55675: The Start Groups node gives a "file ... does not exist" error when bagging or boosting if your flow contains a File Import node" ... View more

Yeah. I believe you SAS is too old to recognize the Hash Method  ha.output() . And : is not a macro vaiable. It is a mistake of SAS Forum . You need  Change  multidata:'y' into m.....a : 'y'     Copy the LOG here ,running under SAS University Edition . Good Luck.         1 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK; 51 52 data have(rename=(old=from contract=to)); 53 contract='1';old='';output; 54 contract='2';old='1';output; 55 contract='x';old='';output; 56 contract='a';old='';output; 57 contract='3';old='2';output; 58 contract='y';old='';output; 59 contract='b';old='a';output; 60 contract='4';old='3';output; 61 contract='z';old='';output; 62 contract='5';old='4';output; 63 contract='c';old='b';output; 64 contract='d';old='c';output; 65 run; NOTE: The data set WORK.HAVE has 12 observations and 2 variables. NOTE: DATA statement used (Total process time): real time 0.03 seconds cpu time 0.01 seconds 66 67 68 69 data full; 70 set have end=last; 71 if _n_ eq 1 then do; 72 declare hash h(); 73 h.definekey('node'); 74 h.definedata('node'); 75 h.definedone(); 76 end; 77 output; 78 node=from; h.replace(); 79 from=to; to=node; 80 output; 81 node=from; h.replace(); 82 if last then h.output(dataset:'node(where=(node is not missing))'); 83 drop node; 84 run; NOTE: The data set WORK.NODE has 12 observations and 1 variables. NOTE: There were 12 observations read from the data set WORK.HAVE. NOTE: The data set WORK.FULL has 24 observations and 2 variables. NOTE: DATA statement used (Total process time): real time 0.07 seconds cpu time 0.04 seconds 85 86 87 data want(keep=node household); 88 declare hash ha(ordered:'a'); 89 declare hiter hi('ha'); 90 ha.definekey('count'); 91 ha.definedata('last'); 92 ha.definedone(); 93 declare hash _ha(hashexp: 20); 94 _ha.definekey('key'); 95 _ha.definedone(); 96 97 if 0 then set full; 98 declare hash from_to(dataset:'full(where=(from is not missing and to is not missing))',hashexp:20,multidata:'y'); 99 from_to.definekey('from'); 100 from_to.definedata('to'); 101 from_to.definedone(); 102 103 if 0 then set node; 104 declare hash no(dataset:'node'); 105 declare hiter hi_no('no'); 106 no.definekey('node'); 107 no.definedata('node'); 108 no.definedone(); 109 110 111 do while(hi_no.next()=0); 112 household+1; output; 113 count=1; 114 key=node;_ha.add(); 115 last=node;ha.add(); 116 rc=hi.first(); 117 do while(rc=0); 118 from=last;rx=from_to.find(); 119 do while(rx=0); 120 key=to;ry=_ha.check(); 121 if ry ne 0 then do; 122 node=to;output;rr=no.remove(key:node); 123 key=to;_ha.add(); 124 count+1; 125 last=to;ha.add(); 126 end; 127 rx=from_to.find_next(); 128 end; 129 rc=hi.next(); 130 end; 131 ha.clear();_ha.clear(); 132 end; 133 stop; 134 run; NOTE: There were 14 observations read from the data set WORK.FULL. WHERE (from is not null) and (to is not null); NOTE: There were 12 observations read from the data set WORK.NODE. NOTE: The data set WORK.WANT has 12 observations and 2 variables. NOTE: DATA statement used (Total process time): real time 0.07 seconds cpu time 0.07 seconds 135 136 proc print;run; NOTE: There were 12 observations read from the data set WORK.WANT. NOTE: PROCEDURE PRINT used (Total process time): real time 0.06 seconds cpu time 0.03 seconds 137 138 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK; 148           ... View more