how to calculate mean and standard deviation for AUC in maxent results

[Rajiv]

Dear Group Members,

I am new to Maxent and would greatly appreciate help on the following:

1) How to calculate mean, standard deviation, Z values and P values
for AUCs in maxent results.

2) When I imported Maxent result 'asc' file as grid with 'float'
option in ArcGis 10, the training and test dots were not visible. How
do I rectify this?

Thanks and best wishes.

Rajiv

Rajiv Kalsi, Ph.D.
Associate Prof.
Dept. of Zoology
MLN College, Yamuna Nagar, Haryana, India

[John B]

Hi Rajiv,

You can find the mean and sd of AUCs from replicate runs in the maxentResults.csv file.

To add the training/test points to ArcMap 10 (assuming random test sample, or cross-validated):

1. Open the relevant xxx_samplePredictions.csv file in Excel or similar

2. Remove spaces from column headers

3. Save as an .xls

4. In ArcMap, go to File > Add data > Add XY data... 

5. Browse to and select the xls file

6. Make sure the x and y fields are specified correctly as X and Y, then click OK.

7. You can now go to the new layer's symbology and color by Categories (unique values), based on the Test_or_Train field (then click Add All Values).

Hope that helps,

John