topic Re: Point density - Errors in ArcGIS Spatial Analyst Questions

Point density - Errors

LorenFreslaud — Thu, 12 Jul 2018 06:47:06 GMT

Hello Esri Community,

I would like to do a Density population map for my thesis but I had 2 errors when I tried :
1. ERROR 01038 Syntax error at or near symbol NEW-LINE
I precised that DDminimum does come from a polygone but convex hull (Minimum geometry boundary tool).

2. ERROR 010267 Syntax error in parsing grid expression
I did the Environment setting (attached). Environments > Raster analysis

Looking forward to hearing your feedbacks !
Thank you,

Loren

Re: Point density - Errors

LorenFreslaud — Mon, 16 Jul 2018 08:29:33 GMT

Is anybody could help please ?

Re: Point density - Errors

DanPatterson_Retired — Mon, 16 Jul 2018 10:32:09 GMT

The tool inputs would be more useful.

It looks like you may have a file path that has a space, international characters, or punctuation or the filename itself.

Re: Point density - Errors

LorenFreslaud — Mon, 16 Jul 2018 11:26:28 GMT

Dear Dan,

Thanks for replying. I started to desperate!

I removed the space from output raster destination, but another error appeared : "unable to open the mask raster ".

"Home range" (previsously called DDminimum) is a file from Minimum geometry boundary tool.

Do you have an idea ?

Re: Point density - Errors

DanPatterson_Retired — Mon, 16 Jul 2018 13:42:01 GMT

c:\Users\Lo'\Documents\MSc WCM\Msc….

punctuation after Lo and space after MSc can't see the rest.

Try moving everything out of the Users folder... maybe C:\GIS

Re: Point density - Errors

XanderBakker — Mon, 16 Jul 2018 14:12:30 GMT

It also seems that you have background processing switched on. If the process still does not work with the suggestions provided by Dan, you should try and switch off the background processing:

and

Re: Point density - Errors

LorenFreslaud — Tue, 17 Jul 2018 07:01:08 GMT

Thank you Dan and Xander for answering !

I changed my folder emplacement and switch off the tick in Background processing

However the error "parsing grid expression" appeared ?

We will success soon I am sure !

Re: Point density - Errors

DanPatterson_Retired — Tue, 17 Jul 2018 07:26:36 GMT

Can you show the actual tool dialog input Loren, not where you searched for Point Density.

Point Density—Help | ArcGIS Desktop

ie. the input file, the population field and any other optional parameters.

You do have the Spatial Analyst extension enabled as well?

Re: Point density - Errors

LorenFreslaud — Tue, 17 Jul 2018 08:18:32 GMT

I have the Spatial analyst extension.

From Point density toolbox :

Re: Point density - Errors

DanPatterson_Retired — Tue, 17 Jul 2018 09:01:06 GMT

You aren't working with projected data.

The cell size and circle radius units suggest this.

I would use projected data for the inputs.

As for the mask, for now, drop the mask to see if it works without the mask.

Simply use Select by Attributes to select the points that fall within the convex hull and save those as a new (projected) point file.

As for the output... make it a *.tif file avoid an esri grid... simply add tif to the end of the file name once you have chosen your saving location.

I think it is a combination of not using projected data for the inputs and perhaps the mask

Re: Point density - Errors

NeilAyres — Tue, 17 Jul 2018 09:08:37 GMT

And this little snip seems to show that the data points are all on the home range boundary.

Re: Point density - Errors

LorenFreslaud — Wed, 18 Jul 2018 06:51:23 GMT

Dear All,

It's worked ! any advice to modify my rectangle Point Density (DDdensity) like my DD poly (in transparent) ?
When I selected Mask > DDpoly it repeat th same error :
ERROR 01038 Syntax error at or near symbol NEW-LINE
ERROR 010267 Syntax error in parsing grid expression

Thank you for your help and support !

Re: Point density - Errors

LorenFreslaud — Wed, 18 Jul 2018 06:54:02 GMT

Dear Neil,

Thank you for answering. I created a new layer, DD poly, larger than the home range boundary

But this mask did not work for the point density.. (answer below) 😕