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ArcGIS Pro 2.6 3e editie leren kennen - Oefening 3d Fout

JeffreySchmidt1

Hallo, <\/P>

In ArcGIS Pro 2.6 leren kennen, Oefening 3D > Spatially Join Data, doorloop je het maken van een spatial join. De uitvoernaam in stap 3 is anders dan de afbeelding in stap 4. De naam in stap 8 komt ook niet overeen. Dit is de eerste keer dat iemand leert een spatial join te maken in dit boek. Het is een gecompliceerd scenario en een dat veel wordt gebruikt in GIS. Ik hoopte op een betere beschrijving en een beter diagram van wat er gebeurt. Ik hoop dat dit wordt herzien en aangepast. Ik gebruik de Amazon Kindle-editie van dit boek. <\/P>

Bedankt voor het kijken.<\/P>

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Craig Carpenter

Hi Jeremy,

Thanks for bringing this issue to our attention.

The output feature class name should be, “c2010_SpatialJoin”

The operation should use “Contains”

You make a good point that understanding join operations is a fundamental concept and I’ll make a note to include more background on this in the next edition, so it is as clear as possible.

I’ll send you a code for an updated e-book once we make these changes.

Thanks,

Craig

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JeffreySchmidt1

I am further confused by the fact that in knox county we previously calculated 4 food deserts... LILAtracts sum up to 4. Population sums to 13,926. When applying the spatial join, using intersect, as described, we label knox county and the book image shows 6 for knox county. Makes sense as intersect will probably take anything that touches the boundary. But is it appropriate for this analysis and does the reader understand these differences? Population gets skewed quite a bit by this method. "Contains" provides the same values as the relate component of the exercise. I dont understand why 6 is the "correct" answer? Help!

Craig Carpenter

Hi Jeremy,

Thanks for bringing this issue to our attention.

The output feature class name should be, “c2010_SpatialJoin”

The operation should use “Contains”

You make a good point that understanding join operations is a fundamental concept and I’ll make a note to include more background on this in the next edition, so it is as clear as possible.

I’ll send you a code for an updated e-book once we make these changes.

Thanks,

Craig

Florian

Hello Craig_Carpenter,

Was the change made regarding the join operations?

Could it be possible to have a copy of the updated e-book?

Thanks

Craig Carpenter

Yep, it should be updated, but I recommend the newer edition Getting to Know ArcGIS Pro 2.8.

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