diff --git a/main/lda.c b/main/lda.c
deleted file mode 100644
index 7a4cd16..0000000
--- a/main/lda.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/* ========================================================
- *   Copyright (C) 2015 All rights reserved.
- *   
- *   filename : lda.c
- *   author   : ***
- *   date     : 2015-03-26
- *   info     : wtf
- * ======================================================== */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include "lda.h"
-
-void help(char * argv[]) {
-    fprintf(stderr, "Usage: \n");
-    fprintf(stderr, "./%s -a <float> -b <float> -g0 <double> -g1 <double> -k <int> -n <int> -s <int> -d <string> -o <string>: \n\n", argv[0]);
-    fprintf(stderr, "      -a  alpha     doc-K   paramenter  \n");
-    fprintf(stderr, "      -b  beta      K-V     paramenter  \n");
-    fprintf(stderr, "      -g0 gamma0    global topic param  \n");
-    fprintf(stderr, "      -g1 gamma1    specil topic param  \n");
-    fprintf(stderr, "      -k  topicx    tt-size             \n");
-    fprintf(stderr, "      -n  niters    iteration num       \n");
-    fprintf(stderr, "      -s  savestep  savestep            \n");
-    fprintf(stderr, "      -d  input     input data file     \n");
-    fprintf(stderr, "      -o  out_dir   output dir          \n");
-}
-
-int parse_command_line(ParamLda *p, int argc, char *argv[]) {
-    int k = 50, n = 20, s = 10;
-    double a = 0.05, b = 0.05, g0 = 0.5, g1 = 0.5;
-    char *input = NULL;
-    char *out_dir = "./";
-
-    int i = 0;
-    char * arg = NULL;
-
-    if ((argc & 1) == 0){
-        fprintf(stderr, "command line not well formatted\n");
-        return -1;
-    }
-
-    while (i < argc) {
-        arg = argv[i];
-        if (0 == strcmp(arg,"-a")){
-            a = atof(argv[++i]);
-        }
-        else if (0 == strcmp(arg,"-b")){
-            b = atof(argv[++i]);
-        }
-        else if (0 == strcmp(arg,"-g0")){
-            g0 = atof(argv[++i]);
-        }
-        else if (0 == strcmp(arg,"-g1")){
-            g1 = atof(argv[++i]);
-        }
-        else if (0 == strcmp(arg,"-k")){
-            k = atoi(argv[++i]);
-        }
-        else if (0 == strcmp(arg,"-n")){
-            n = atoi(argv[++i]);
-        }
-        else if (0 == strcmp(arg,"-s")){
-            s = atoi(argv[++i]);
-        }
-        else if (0 == strcmp(arg,"-d")){
-            input = argv[++i];
-        }
-        else if (0 == strcmp(arg,"-o")){
-            out_dir = argv[++i];
-        }
-        i += 1;
-    }
-    if (NULL == input) {
-        fprintf(stderr,"no input data exit(-1)\n");
-        return -1;
-    }
-    p->a        = a;
-    p->b        = b;
-    p->g0       = g0;
-    p->g1       = g1;
-    p->niters   = n;
-    p->savestep = s;
-    p->k        = k;
-    p->in_file  = input;
-    p->out_dir  = out_dir;
-
-    fprintf(stderr, "alpha : %f\tbeta : %f\tniters : %d\ttopics : %d\tinput : %s\toutput : %s\n", \
-            a, b, n, k, input, out_dir);
-
-    return 0;
-}
-
-int main(int argc, char * argv[]) {
-    ParamLda p;
-    if (-1 == parse_command_line(&p, argc, argv)){
-        help(argv);
-        return -1;
-    }
-    fprintf(stderr,"command line parse done\n");
-    Lda * lda = create_lda(p);
-    srand(time(NULL));
-    if (-1 == init_lda(lda)) {
-        return -1;
-    }
-    fprintf(stderr,"load data done\n");
-    fprintf(stderr,"D: %d V: %d T: %d\n", lda_d(lda), lda_v(lda), lda_t(lda));
-    est_lda(lda);
-    free_lda(lda);
-    lda = NULL;
-    return 0;
-}
diff --git a/w2v/vec.c b/w2v/vec.c
index 0895bf0..bf35175 100644
--- a/w2v/vec.c
+++ b/w2v/vec.c
@@ -186,7 +186,7 @@ void vec_load_tree(Vec * vec, TSD * ds, char * outdir, char * leaff){
     while (NULL != fgets(buf, MLEN, fp)){
         string = trim(buf, 3);
         while (NULL != (token = strsep(&string, "\t"))){
-            vec->neu1[i++] = atof(token);
+            vec->neu0[i++] = atof(token);
         }
     }
     fclose(fp);