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Kennenlernen von ArcGIS Pro 2.6 3. Auflage - Übung 3d Fehler

JeffreySchmidt1

Hallo, <\/P>

In "Kennenlernen von ArcGIS Pro 2.6", Übung 3D > Spatially Join Data, durchlaufen Sie die Erstellung eines spatial join. Der Ausgabename in Schritt 3 unterscheidet sich von der Abbildung in Schritt 4. Der Name in Schritt 8 stimmt ebenfalls nicht überein. Dies ist das erste Mal, dass jemand in diesem Buch lernt, einen spatial join durchzuführen. Es ist ein kompliziertes Szenario und eines, das im GIS weit verbreitet ist. Ich hatte auf eine bessere Beschreibung und ein besseres Diagramm dessen gehofft, was passiert. Ich hoffe, dies wird überprüft und überarbeitet. Ich verwende die Amazon Kindle-Ausgabe dieses Buches. <\/P>

Vielen Dank für Ihre Aufmerksamkeit.<\/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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