0
votes
0answers
24 views

Zonal statistics vs. random points?

Using ArcGIS 10.1 for Desktop, I wish to model the relation between soil productivity (SP) and a number of independent variables such as, e.g., terrain elevation and slope. For this purpose, I am ...
0
votes
1answer
25 views

Calculating GRID Statstics

I have a GRID raster dataset with no calculated statistics. I have tried building pyramids and calculating statistics with no luck. What am I missing? EDIT: For those who don't understand: 1. ...
0
votes
1answer
70 views

Counting all features in all layers of ArcGIS map to get grand total?

I have 20-50 polygon layers in an mxd and I want to find out the aggregated amount of all features (global count). The shapefiles which are the source of those layers are stored in different folders. ...
2
votes
3answers
127 views

Select layer by attribute: return top 3 records

I have a feature class in a file geodatabase using ArcGIS 10.1. I want to create a model that selects the three features with the highest values in one field (Average Price). Basically I want my ...
0
votes
1answer
59 views

How to calculate statistics for several subcatchments (polygons) in the same time? [duplicate]

I have a shapefile of groundwater management zone which is composed of 40 subcatchments (40 polygons). I'd like to calculate the max., min. and mean elevation for each subcatchment. Would you please ...
3
votes
1answer
255 views

PCA on correlation matrix in ArcGIS

I am trying to run a PCA on a set of normalized raster bands within ArcGIS. I would like to calculate the PCA on the correlation, not the covariance, matrix of the PCA, but Arc as far as I can tell ...
2
votes
3answers
459 views

How to count occurrences of one field grouped by values of another?

Is there a way of calculating the number of unique text strings in a field in ArcGIS 10.1? I have a number of repeated strings in this field, but would like to calculate the number of unique strings ...
4
votes
0answers
191 views

How to analyse correlations between variables and points? [closed]

I have just lost the past 8 hours on this, and literally getting nowhere - hoping someone can help before I go mad! I am trying to determine the correlation between sinkholes and a number of ...
2
votes
1answer
182 views

STATISTICS not allowed in the Attribute Table

I created a shapefile, calculated geometry then went to grab the stats, the statistics was ghosted, not allowing me to grab those numbers. I am using 10.1 ArcView. I deleted the field and created a ...