topic Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong? in Spatial Statistics Questions

My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

LetoyniaCoombs — Tue, 19 May 2015 21:42:05 GMT

Any suggestions? explanations? Thanks.

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

SepheFox — Tue, 19 May 2015 22:23:21 GMT

Can you give us some more detail? What exactly are you autocorrelating? Screenshots of your layer, tool dialog, and graph might be a good start.

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

DanPatterson_Retired — Tue, 19 May 2015 22:28:27 GMT

Summarize with respect to the help file topic

barring that, rescale the y-axis

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

DanPatterson_Retired — Tue, 19 May 2015 23:42:53 GMT

Well your X axis is all wrong...did you notice that the range is in the order of centimeters and it is hard to tell how the graph was created and what was used to go in it. I hope these data are in a projected coordinate system and not in decimal degrees, would be a start

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

LetoyniaCoombs — Wed, 20 May 2015 16:09:43 GMT

Yes, I think that is the problem, but not sure.

The projected coordinate system was WGS_1984_Web_Mecator_Auxillary_Sphere

and the geographic coordinate system was GCS_WGS_1984

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

LetoyniaCoombs — Thu, 21 May 2015 17:45:47 GMT

So, the problem is that ArcMap thinks the total area of my map is about .2 meter x .2 meter. instead of 150 square miles. I know this is probably extremely basic, but how do I change this? I'm a novice. Thank you.

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

SepheFox — Thu, 21 May 2015 17:52:16 GMT

Hi Letoynia, using the Project tool, you can reproject your data into something fitting. Where in the world is your data located?

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

DanPatterson_Retired — Thu, 21 May 2015 17:54:26 GMT

where did you get the data? was the Define projection inadvertently used in place of the Project tool if the ariginal data were in decimal degrees?

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

LetoyniaCoombs — Thu, 21 May 2015 18:02:32 GMT

Ok. So it is still a projection problem. I got the layer from Arc GIS

online and never projected it. Thanks again.

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Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

SepheFox — Thu, 21 May 2015 18:04:26 GMT

Letoynia, be aware that the data from ArcGIS online WILL already have a projection. It is very important that you don't change this projection, except by using the Project tool.

Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

LetoyniaCoombs — Thu, 21 May 2015 18:19:20 GMT

OK. Good to know. The projection stuff is always where I get fouled up.

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Re: My incremental spatial autocorrelation graph came out flat. Any ideas as to what I might be doing wrong?

DanPatterson_Retired — Thu, 21 May 2015 18:22:07 GMT

you might want to turn off your...

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stuff when working on GeoNet