Ricardo Alvarez

5 Questions 13 Answers 0 Followers

Questions related from Ricardo Alvarez

Could I use True Skill TSS to measure the accuracy of my SDM with presence only data?

Hi guys, I'm running SDM with BIomod2. I'd like to measure the accuracy of my models using AUC and TSS. However reviewing literature (e.g. Alouche et al 2006) they explain that TSS could be used...

09 September 2015 6,406 2 View

How do I import environmental variables (*.asc files) in R?

HI Everyone, I have my environmental variables in ASCII files (*.asc) I need to import to R to run model with Biomod2 and convert them to data.frame to run autocorrelation functions. However I...

08 August 2015 2,331 10 View

Problems to conver asci to raster, what is wrong?

Hello everyone, I'm trying to convert an ascii file of 300 col x25rows to raster file of 1000*1000. I'm using a mask file, but I only obtain a file of the original size. I receive this warnings....

07 July 2015 2,825 1 View

Can ArcGIS reclassify a raster in more than 10 intervals?

HI everyone, I'm trying to classify a raster in distance intervals (32) WITH the RECLASSIFY tool from arcGIS 10.2. However the results are only 10 intervals. Someone know how to change this preset...

07 July 2015 1,021 5 View

In ecological term what is the difference to use: bootstrap, crossvalidation or subsample in MAXENT?

I'm running some model of SDM, but I'm not clear if there is ecological difference in data sample or data mining structure to use any of these variations. Cheers!!

03 March 2015 8,244 5 View