Zonal Statistics is returning null values in ArcGISDoes Zonal Statistics value change when applied on subset of data using ArcGIS Spatal Analyst?Zonal Statistics as table creates output but some are NullHow to Calculate Custom Zonal Statistics?ArcGIS 10.0 height statistics for polygon features: zonal statistics vs interpolate shapeResampling gives higher MEAN when using zonal statisticsExtract results from zonal statisticsInconsistent results using Zonal Statistics by Table for Min in ArcGIS Desktop?QGIS Zonal Statistics for polygons is missing results?How does QGIS Zonal Statistics handle partially overlapping pixels?Putting raster values in polygons ArcGIS
What is purpose of DB Browser(dbbrowser.aspx) under admin tool?
How to pronounce 'c++' in Spanish
Can someone publish a story that happened to you?
Philosophical question on logistic regression: why isn't the optimal threshold value trained?
Why must Chinese maps be obfuscated?
Older movie/show about humans on derelict alien warship which refuels by passing through a star
Critique of timeline aesthetic
Multiple fireplaces in an apartment building?
Can a barbarian keep raging if she shoves an enemy on her turn?
"Whatever a Russian does, they end up making the Kalashnikov gun"? Are there any similar proverbs in English?
Do I need to watch Ant-Man and the Wasp and Captain Marvel before watching Avengers: Endgame?
What makes accurate emulation of old systems a difficult task?
Why didn't the Space Shuttle bounce back into space as many times as possible so as to lose a lot of kinetic energy up there?
How do I produce this Greek letter koppa: Ϟ in pdfLaTeX?
My bank got bought out, am I now going to have to start filing tax returns in a different state?
How to not starve gigantic beasts
An array in a equation with curly braces in both sides
Is there really no use for MD5 anymore?
What does a straight horizontal line above a few notes, after a changed tempo mean?
Unknown code in script
How do I reattach a shelf to the wall when it ripped out of the wall?
Negative Resistance
How do I deal with a coworker that keeps asking to make small superficial changes to a report, and it is seriously triggering my anxiety?
Which big number is bigger?
Zonal Statistics is returning null values in ArcGIS
Does Zonal Statistics value change when applied on subset of data using ArcGIS Spatal Analyst?Zonal Statistics as table creates output but some are NullHow to Calculate Custom Zonal Statistics?ArcGIS 10.0 height statistics for polygon features: zonal statistics vs interpolate shapeResampling gives higher MEAN when using zonal statisticsExtract results from zonal statisticsInconsistent results using Zonal Statistics by Table for Min in ArcGIS Desktop?QGIS Zonal Statistics for polygons is missing results?How does QGIS Zonal Statistics handle partially overlapping pixels?Putting raster values in polygons ArcGIS
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I am using Zonal Statistics as Table to obtain the Max height from a DEM for each polygon (then Joined to the polygons). For some reason, a lot of the polygons get NULL returned. All the polygons returning Null appear to be between 1 - 4 cells in size (given the DEM scale). Other same sized polygons are however returning the expected result. 154 out of 3131 polygons have NULL values
I have used the Identify tool to check that I do have non-null values in the underlying DEM for a bunch of these.
The problem appears to be the FID is not being created for the Zonal Statistics table for some polygons. I have checked a couple of other small polygons and the values obtained from Zonal Statistics appear correct. What should I be looking for/testing? How can I correct this?
I am using ArcGIS Desktop v10.6 with Advanced License.
arcgis-desktop zonal-statistics null
asked 2 hours ago
Esme_Esme_
396516
add a comment |
I am using Zonal Statistics as Table to obtain the Max height from a DEM for each polygon (then Joined to the polygons). For some reason, a lot of the polygons get NULL returned. All the polygons returning Null appear to be between 1 - 4 cells in size (given the DEM scale). Other same sized polygons are however returning the expected result. 154 out of 3131 polygons have NULL values
I have used the Identify tool to check that I do have non-null values in the underlying DEM for a bunch of these.
The problem appears to be the FID is not being created for the Zonal Statistics table for some polygons. I have checked a couple of other small polygons and the values obtained from Zonal Statistics appear correct. What should I be looking for/testing? How can I correct this?
I am using ArcGIS Desktop v10.6 with Advanced License.
arcgis-desktop zonal-statistics null
asked 2 hours ago
Esme_Esme_
396516
1
Have you tried resampling the DEM to a higher resolution?
– BERA
1 hour ago
Thank you - that has fixed the problem (if you post an answer I will accept it). Can you please explain why this would fix things?
– Esme_
1 hour ago
add a comment |
I am using Zonal Statistics as Table to obtain the Max height from a DEM for each polygon (then Joined to the polygons). For some reason, a lot of the polygons get NULL returned. All the polygons returning Null appear to be between 1 - 4 cells in size (given the DEM scale). Other same sized polygons are however returning the expected result. 154 out of 3131 polygons have NULL values
I have used the Identify tool to check that I do have non-null values in the underlying DEM for a bunch of these.
The problem appears to be the FID is not being created for the Zonal Statistics table for some polygons. I have checked a couple of other small polygons and the values obtained from Zonal Statistics appear correct. What should I be looking for/testing? How can I correct this?
I am using ArcGIS Desktop v10.6 with Advanced License.
arcgis-desktop zonal-statistics null
asked 2 hours ago
Esme_Esme_
396516
I am using Zonal Statistics as Table to obtain the Max height from a DEM for each polygon (then Joined to the polygons). For some reason, a lot of the polygons get NULL returned. All the polygons returning Null appear to be between 1 - 4 cells in size (given the DEM scale). Other same sized polygons are however returning the expected result. 154 out of 3131 polygons have NULL values
I have used the Identify tool to check that I do have non-null values in the underlying DEM for a bunch of these.
The problem appears to be the FID is not being created for the Zonal Statistics table for some polygons. I have checked a couple of other small polygons and the values obtained from Zonal Statistics appear correct. What should I be looking for/testing? How can I correct this?
I am using ArcGIS Desktop v10.6 with Advanced License.
arcgis-desktop zonal-statistics null
arcgis-desktop zonal-statistics null
asked 2 hours ago
Esme_Esme_
396516
asked 2 hours ago
Esme_Esme_
396516
asked 2 hours ago
Esme_Esme_
396516
asked 2 hours ago
Esme_Esme_
396516
asked 2 hours ago
Esme_Esme_
396516
396516
1
Have you tried resampling the DEM to a higher resolution?
– BERA
1 hour ago
Thank you - that has fixed the problem (if you post an answer I will accept it). Can you please explain why this would fix things?
– Esme_
1 hour ago
add a comment |
1
Have you tried resampling the DEM to a higher resolution?
– BERA
1 hour ago
Thank you - that has fixed the problem (if you post an answer I will accept it). Can you please explain why this would fix things?
– Esme_
1 hour ago
1
1
Have you tried resampling the DEM to a higher resolution?
– BERA
1 hour ago
Have you tried resampling the DEM to a higher resolution?
– BERA
1 hour ago
Thank you - that has fixed the problem (if you post an answer I will accept it). Can you please explain why this would fix things?
– Esme_
1 hour ago
Thank you - that has fixed the problem (if you post an answer I will accept it). Can you please explain why this would fix things?
– Esme_
1 hour ago
add a comment |
1 Answer
1
active
oldest
votes
You could try resampling the raster to a finer resolution. Not sure why this can work but when Reading the help section for version 10.3 (not present in 10.6):
If the zone input is a feature dataset with relatively small features,
keep in mind that the resolution of the information needs to be
appropriate relative to the resolution of the value raster. If the
areas of single features are similar to or smaller than the area of
single cells in the value raster, in the feature-to-raster conversion
some of these zones may not be represented.
answered 1 hour ago
BERABERA
17.5k62144
1
I had the same problem. Especially features that were very thin had null values. So I think when they do not cross the centroid of the raster cell, you get NULLS.
– blabbath
1 hour ago
add a comment |
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "79"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgis.stackexchange.com%2fquestions%2f320908%2fzonal-statistics-is-returning-null-values-in-arcgis%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You could try resampling the raster to a finer resolution. Not sure why this can work but when Reading the help section for version 10.3 (not present in 10.6):
If the zone input is a feature dataset with relatively small features,
keep in mind that the resolution of the information needs to be
appropriate relative to the resolution of the value raster. If the
areas of single features are similar to or smaller than the area of
single cells in the value raster, in the feature-to-raster conversion
some of these zones may not be represented.
answered 1 hour ago
BERABERA
17.5k62144
1
I had the same problem. Especially features that were very thin had null values. So I think when they do not cross the centroid of the raster cell, you get NULLS.
– blabbath
1 hour ago
add a comment |
You could try resampling the raster to a finer resolution. Not sure why this can work but when Reading the help section for version 10.3 (not present in 10.6):
If the zone input is a feature dataset with relatively small features,
keep in mind that the resolution of the information needs to be
appropriate relative to the resolution of the value raster. If the
areas of single features are similar to or smaller than the area of
single cells in the value raster, in the feature-to-raster conversion
some of these zones may not be represented.
answered 1 hour ago
BERABERA
17.5k62144
1
I had the same problem. Especially features that were very thin had null values. So I think when they do not cross the centroid of the raster cell, you get NULLS.
– blabbath
1 hour ago
add a comment |
You could try resampling the raster to a finer resolution. Not sure why this can work but when Reading the help section for version 10.3 (not present in 10.6):
If the zone input is a feature dataset with relatively small features,
keep in mind that the resolution of the information needs to be
appropriate relative to the resolution of the value raster. If the
areas of single features are similar to or smaller than the area of
single cells in the value raster, in the feature-to-raster conversion
some of these zones may not be represented.
answered 1 hour ago
BERABERA
17.5k62144
You could try resampling the raster to a finer resolution. Not sure why this can work but when Reading the help section for version 10.3 (not present in 10.6):
If the zone input is a feature dataset with relatively small features,
keep in mind that the resolution of the information needs to be
appropriate relative to the resolution of the value raster. If the
areas of single features are similar to or smaller than the area of
single cells in the value raster, in the feature-to-raster conversion
some of these zones may not be represented.
answered 1 hour ago
BERABERA
17.5k62144
answered 1 hour ago
BERABERA
17.5k62144
answered 1 hour ago
BERABERA
17.5k62144
answered 1 hour ago
BERABERA
17.5k62144
17.5k62144
1
I had the same problem. Especially features that were very thin had null values. So I think when they do not cross the centroid of the raster cell, you get NULLS.
– blabbath
1 hour ago
add a comment |
1
I had the same problem. Especially features that were very thin had null values. So I think when they do not cross the centroid of the raster cell, you get NULLS.
– blabbath
1 hour ago
1
1
I had the same problem. Especially features that were very thin had null values. So I think when they do not cross the centroid of the raster cell, you get NULLS.
– blabbath
1 hour ago
I had the same problem. Especially features that were very thin had null values. So I think when they do not cross the centroid of the raster cell, you get NULLS.
– blabbath
1 hour ago
add a comment |
Thanks for contributing an answer to Geographic Information Systems Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgis.stackexchange.com%2fquestions%2f320908%2fzonal-statistics-is-returning-null-values-in-arcgis%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
Have you tried resampling the DEM to a higher resolution?
– BERA
1 hour ago
Thank you - that has fixed the problem (if you post an answer I will accept it). Can you please explain why this would fix things?
– Esme_
1 hour ago