On Nov 5, 2011, at 7:20 PM, ScottDaniel wrote:
So I have a text file that looks like this:
Label X Y Slice
1 Field_1_R3D_D3D_PRJ_w617.tif 348 506 1
2 Field_1_R3D_D3D_PRJ_w617.tif 359 505 1
3 Field_1_R3D_D3D_PRJ_w617.tif 356 524 1
4 Field_1_R3D_D3D_PRJ_w617.tif 2 0 1
5 Field_1_R3D_D3D_PRJ_w617.tif 412 872 1
6 Field_1_R3D_D3D_PRJ_w617.tif 422 863 1
7 Field_1_R3D_D3D_PRJ_w617.tif 429 858 1
8 Field_1_R3D_D3D_PRJ_w617.tif 429 880 1
9 Field_1_R3D_D3D_PRJ_w617.tif 437 865 1
10 Field_1_R3D_D3D_PRJ_w617.tif 447 855 1
11 Field_1_R3D_D3D_PRJ_w617.tif 450 868 1
12 Field_1_R3D_D3D_PRJ_w617.tif 447 875 1
13 Field_1_R3D_D3D_PRJ_w617.tif 439 885 1
14 Field_1_R3D_D3D_PRJ_w617.tif 2 8 1
What it represents are the locations of centromeres per nucleus in a
microscope image. What I need to do is do a dist() on each grouping
(the
grouping being separated by the low values of x and y's) and then
compute an
average. The part that I'm having trouble with is writing code that
will
allow R to separate these objects.
I'm having trouble figuring out what you mean by separating the
objects. Each row is a separate reading, and I think you just want
pairwise distances, right?
What I mean is that rows 1-3 represent one group of centromeres and
rows 5-13 represent a second group. So I want to do a separate dist on
each group (i.e. I want a pair wise distance for rows 1 and 3 but not
1 and 12). Does that clear thing up?
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