Ok thanks for the useful comments. Here's a list of the commands I used.

3dTcorr1D -prefix Correlations.nii.gz Bucket.nii.gz Values.1D // Generate correlations
3drefit -addFDR -FDRmask Greymattermask.nii.gz Correlations.nii.gz // add FDR to correlations dataset
3dhistog -nbin 100 -mask Greymattermask.nii.gz Correlations.nii.gz > 3dhistog.txt // histog with mask

Here's the output ; you were right I omitted the mask in 3dhistog.

Thanks again.

#Magnitude Freq Cum_Freq
-0.844302 1 1
-0.827267 0 1
-0.810233 6 7
-0.793198 10 17
-0.776164 13 30
-0.759129 19 49
-0.742095 26 75
-0.725060 39 114
-0.708026 53 167
-0.690991 91 258
-0.673957 119 377
-0.656922 164 541
-0.639888 269 810
-0.622853 335 1145
-0.605819 451 1596
-0.588784 612 2208
-0.571750 799 3007
-0.554715 980 3987
-0.537680 1239 5226
-0.520646 1498 6724
-0.503611 1755 8479
-0.486577 2259 10738
-0.469542 2706 13444
-0.452508 3177 16621
-0.435473 3663 20284
-0.418439 4373 24657
-0.401404 4929 29586
-0.384370 5565 35151
-0.367335 6391 41542
-0.350301 7269 48811
-0.333266 8163 56974
-0.316232 9106 66080
-0.299197 10097 76177
-0.282163 10946 87123
-0.265128 12394 99517
-0.248093 13217 112734
-0.231059 13966 126700
-0.214024 14980 141680
-0.196990 15802 157482
-0.179955 16940 174422
-0.162921 17759 192181
-0.145886 18371 210552
-0.128852 19083 229635
-0.111817 19958 249593
-0.094783 20437 270030
-0.077748 21148 291178
-0.060714 21749 312927
-0.043679 22300 335227
-0.026645 22790 358017
-0.009610 22925 380942
0.007424 23101 404043
0.024459 23169 427212
0.041493 22953 450165
0.058528 22877 473042
0.075563 22666 495708
0.092597 22130 517838
0.109632 21527 539365
0.126666 21240 560605
0.143701 20582 581187
0.160735 19463 600650
0.177770 18727 619377
0.194804 17727 637104
0.211839 16864 653968
0.228873 15535 669503
0.245908 14874 684377
0.262942 13746 698123
0.279977 12483 710606
0.297011 11431 722037
0.314046 10095 732132
0.331080 9039 741171
0.348115 8009 749180
0.365149 7196 756376
0.382184 6261 762637
0.399219 5511 768148
0.416253 4751 772899
0.433288 4129 777028
0.450322 3372 780400
0.467357 2825 783225
0.484391 2408 785633
0.501426 1887 787520
0.518460 1575 789095
0.535495 1171 790266
0.552529 946 791212
0.569564 737 791949
0.586598 562 792511
0.603633 364 792875
0.620667 300 793175
0.637702 210 793385
0.654736 114 793499
0.671771 81 793580
0.688805 48 793628
0.705840 25 793653
0.722875 15 793668
0.739909 9 793677
0.756944 3 793680
0.773978 1 793681
0.791013 0 793681
0.808047 0 793681
0.825082 0 793681
0.842116 0 793681



Edited 1 time(s). Last edit at 10/20/2014 09:39AM by v1nch.