gistfile1.txt

[... snipped away lotsof Quadtree inserts ...]

#104785 0x00000001000021ae in QuadTree::insert (this=0x1021d6e00, new_index=553) at quadtree.cpp:154
#104786 0x0000000100002235 in QuadTree::insert (this=0x1021d6a10, new_index=553) at quadtree.cpp:157
#104787 0x00000001000021ae in QuadTree::insert (this=0x1021d6980, new_index=553) at quadtree.cpp:154
#104788 0x0000000100002235 in QuadTree::insert (this=0x1021d6590, new_index=553) at quadtree.cpp:157
#104789 0x00000001000021ae in QuadTree::insert (this=0x1021d63e0, new_index=553) at quadtree.cpp:154
#104790 0x00000001000021dc in QuadTree::insert (this=0x1021d61a0, new_index=553) at quadtree.cpp:155
#104791 0x00000001000021dc in QuadTree::insert (this=0x1021d5ff0, new_index=553) at quadtree.cpp:155
#104792 0x0000000100002207 in QuadTree::insert (this=0x1021d5e40, new_index=553) at quadtree.cpp:156
#104793 0x0000000100002235 in QuadTree::insert (this=0x1021d5b70, new_index=553) at quadtree.cpp:157
#104794 0x0000000100002207 in QuadTree::insert (this=0x1021d58a0, new_index=553) at quadtree.cpp:156
#104795 0x00000001000021dc in QuadTree::insert (this=0x1021d5660, new_index=553) at quadtree.cpp:155
#104796 0x00000001000021dc in QuadTree::insert (this=0x1021d54b0, new_index=553) at quadtree.cpp:155
#104797 0x0000000100002207 in QuadTree::insert (this=0x1021d5300, new_index=553) at quadtree.cpp:156
#104798 0x0000000100002235 in QuadTree::insert (this=0x1021d4fa0, new_index=553) at quadtree.cpp:157
#104799 0x00000001000021dc in QuadTree::insert (this=0x1021d4df0, new_index=553) at quadtree.cpp:155
#104800 0x0000000100002207 in QuadTree::insert (this=0x1021d35c0, new_index=553) at quadtree.cpp:156
#104801 0x0000000100002235 in QuadTree::insert (this=0x1021d31d0, new_index=553) at quadtree.cpp:157
#104802 0x00000001000021ae in QuadTree::insert (this=0x1021d30b0, new_index=553) at quadtree.cpp:154
#104803 0x0000000100002207 in QuadTree::insert (this=0x10210c9f0, new_index=553) at quadtree.cpp:156
#104804 0x0000000100002207 in QuadTree::insert (this=0x10210c690, new_index=553) at quadtree.cpp:156
#104805 0x00000001000021ae in QuadTree::insert (this=0x102100240, new_index=553) at quadtree.cpp:154
#104806 0x0000000100002235 in QuadTree::insert (this=0x102100000, new_index=553) at quadtree.cpp:157
#104807 0x00000001000024dd in QuadTree::fill (this=0x102100000, N=1000) at quadtree.cpp:192
#104808 0x0000000100002b8d in QuadTree::QuadTree (this=0x102100000, inp_data=0x100816c00, N=1000) at quadtree.cpp:5
0
#104809 0x0000000100006fd6 in TSNE::computeGradient (this=0x1001000e0, P=0xffffffef, inp_row_P=0x10082ac00, inp_col
_P=0x1002b0000, inp_val_P=0x100329000, Y=0x100816c00, N=1000, D=2, dC=0x10081cc00, theta=0.5) at tsne.cpp:164
#104810 0x0000000100007da7 in TSNE::run (this=0x1001000e0, X=0x100804200, N=1000, D=9, Y=0x100816c00, no_dims=2, pe
rplexity=30, theta=0.5) at tsne.cpp:108
#104811 0x00000001000086e3 in main () at tsne.cpp:832

output of matlab

>> X = fast_tsne(max_filtered(1:1000, :))
Read the 1000 x 9 data matrix successfully!
Using no_dims = 2, perplexity = 30.000000, and theta = 0.500000
Computing input similarities...
Building tree...
 - point 0 of 1000
Done in 0.32 seconds (sparsity = 0.123753)!
Learning embedding...
Iteration 50: error is 63.356548 (50 iterations in 0.55 seconds)
Iteration 100: error is 59.460811 (50 iterations in 0.42 seconds)
Iteration 150: error is 58.939552 (50 iterations in 0.42 seconds)
Iteration 200: error is 58.780764 (50 iterations in 0.42 seconds)
Iteration 250: error is 2.409635 (50 iterations in 0.42 seconds)
Iteration 300: error is 0.673874 (50 iterations in 0.39 seconds)
Iteration 350: error is 0.484488 (50 iterations in 0.40 seconds)
Iteration 400: error is 0.438122 (50 iterations in 0.41 seconds)
Iteration 450: error is 0.418668 (50 iterations in 0.41 seconds)
Iteration 500: error is 0.406447 (50 iterations in 0.42 seconds)
Iteration 550: error is 0.397892 (50 iterations in 0.42 seconds)
Iteration 600: error is 0.390817 (50 iterations in 0.42 seconds)
Iteration 650: error is 0.385470 (50 iterations in 0.43 seconds)
Iteration 700: error is 0.382505 (50 iterations in 0.44 seconds)
Iteration 750: error is 0.379659 (50 iterations in 0.44 seconds)
Iteration 800: error is 0.377554 (50 iterations in 0.44 seconds)
Iteration 850: error is 0.375576 (50 iterations in 0.44 seconds)
Iteration 900: error is 0.374407 (50 iterations in 0.46 seconds)
./bh_tsne: Segmentation fault
Elapsed time is 10.419739 seconds.
Error using fread
Invalid file identifier.  Use fopen to generate a valid file identifier.

Error in fast_tsne>read_data (line 75)
  n = fread(h, 1, 'integer*4');

Error in fast_tsne (line 52)
    [mappedX, landmarks, costs] = read_data;