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Reclassify Tool does not create all my classes

CarinaZacharias

Hi there,

I am trying to reclassify a layer (distance to roads) into 4 classes:

0 - 10 m --> 4

10 - 20 m --> 3

20 - 40 m --> 2

> 40 m --> 1

However, only classes 1 and 4 appear in my output. If I change it to three classes, only classes 1 and 3 appear. I have used the reclassify tool numerous times before and never had this problem. Can anyone help?

PS: I am converting all my distances from meters into decimal degrees for the reclassification, because my map measures everything in degrees. I don't know if that's important. It has never caused issues before.

Thanks so much in advance for any help!

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CarinaZacharias

I am not sure, if I follow. It is not a prohected coordinate system, it a geographic one. WGS 1984

DanPatterson_Retired

If your data are not projected it, or you could set the coordinate system of the data frame. The former would make sense since you shouldn't have calculated distance to the road when the coordinates were in decimal degrees. There are options to calculate them in projected coordinates. The quickest and best solution would be to get the measures in projected units in the first place. Any other workaround is just that.

CarinaZacharias

Thanks for the answers! I would very much like to display in meters and not in degrees, but I didn't manage to change it. You don't possibly know how I could do that?

AbdullahAnter

I have two questions.

First, Are you sure that your attribute table has records of roads in the range from 10 to 40 meter?

Second, What is your steps to create reclassify layer?

DanPatterson_Retired

it is important since 10 meters is going to be an incredibly small number of decimal degrees, so you will get two classes those less than some threshold and those above. The solution is to fix your display units to be in meters. Measurements in degrees are pretty useless since the vast majority of people will have no reference point to understand them

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