Ayse,
a couple of comments - the first is that you must have a quite segregated
urban form to have a mean depth of 20 - where is it? If you have got this
step wrong then radius 20 and radius n would be the same. If the whole
thing is no deeper than radius 3 then that would be the same as well.
Second point check your columns. When you process at radius infinity -
arethe rad 3 and rad infinity different - they should be. save the rad 3 and
rad infinty data to a separate file and then reprocess at rad 20. The rad 20
data will be in the 'radius' column. Transfer that to the table with the
other two radii in it and then look again to compare. I hope this helps.
Alan
----- Original Message -----
From: Ayse Sema Kubat <[log in to unmask]>
To: <[log in to unmask]>; <[log in to unmask]>;
<[log in to unmask]>; <[log in to unmask]>
Sent: Friday, July 14, 2000 12:21 PM
Subject: A Radius-Radius Map
> Dear Sheep and Space Syntax mailbox;
>
> Thanks for your quick reply. At last I processed my 21 000 lined axial
> map by the help of the programme named Orangebox.
>
> Now I am trying to create a radius-radius map for the city I am
> studying. I alraedy processed a radius-radius map according to the
> directions of the syntax software manuals.
>
> After selecting the most integrated line from the Table menu, I then
> created the depth map and the scattergram of depth to radDn ratio (Depth
> /Integration ratio) for the depth map I have created.
> The mean depth 19. 7804, integration: 0.4381, and r^2: 0.8469.
> I rounded the mean depth to 20.
> I set the radius at 20 and reprocessed it and saved under the different
> name.
>
> But I found that the Rad 3 and Rad 20 maps are giving the same results.
> Even the maps I saved before are all giving Integration 20 but not Int
> 3. In Prof. Hillier's "Space is the Machine" book, page 214 plate 2, the
> two London maps with Rad 3 and Rad 10 (Radius -Radius integration) are
> giving different results. Their integration core is different, the
> number of most integrated lines are different.
>
> In my study, the two maps Rad 3 and Rad 20 which I created are the same.
>
> I wonder if I made a mistake and where have I been mistaken.
>
> If you can give an urgent reply I will be thankful.
>
> Ayse Sema KUBAT
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