Latest Contributions by JulianeStruve1

I am trying to replace <Null> values with 0. I have selected these rows by attribute [field] "is null"  but can't seem to find a way to actually replace the entries. Can someone tell me how I can replace the values ? I can't just remove the rows, I need the 0 information in them for a field calculation. Thanks a lot ! ... View more

Hello, I amd using the NEAR tool to determine distances of certain points to plogons of interest, and would like to have the results added to the attribute table of the points. When I do this for more then 1 polygon the previous results in the attributes table are overwritten. Is it possible to do this so that the results are stacked or added in multiple columns to the attributes table. Thanks, Juliane ... View more

Dear ArcGIS people, I am trying to figure out how to examine the effect of forest edge habitat (independent variable) onto the abundance of certain species (dependent variable) associated with those edges. Abundance data consist of spatially distributed counts in a study area that includes the edge habitat and large spaces without it. It is believed that the habitat effect may include not only presence of the edge habitat, but also length of the edge and possibly width. Complexity of the shape of the edge may also play a role. I am looking at different ways to describe the habitat effect and have so far come up with: 1. Distance from the habitat edge 2. Presence of certain tree species within the immediate neighborhood of the dependent variable, defined as a round buffer. I am thinking of intersecting the buffers with the edge habitat feature, and to make the neighborhood succcessively larger in order to test if the effect of the edge habitat onto abundance may be dependent on the scale of observation. I was wondering if anyone has experience with such analysis, and what problems may arise. There are a lot of zeros in the data where no animals were found.  I have not figured out yet how to describe the complexite of the edge itself. It appears that the Patch Analyst extension was written for some related questions, but I have not been able to download it for ArcGIS 10. Thank you very muh for any suggestions and best wishes, Juliane ... View more

Hello, I have tried to install Patch analyst for ArcGIS 10, but the installation goes only to step 6 inclusive of the installation guidelines (http://flash.laheheadu.ca/~rrempel/patch/ArcGIS10_fix.htm). Somebody raised this question last year but no answer came forward. Does anyone know how to solve this problem, or has anyone managed to install it correctly ? Thanks a lot, Juliane ... View more