Dear I am Bibi, a PhD student of Environmental Science in South Korea. I am currently writing my research paper and to deal with data I need to do Self Organizing Map (SOM). I am using R version 4.1.0 (2021-05-18) with kohonen package. I was following this tutorial given http://rstudio-pubs-static.s3.amazonaws.com/437468_136a369149e24f24a4d0c152860ab4c3.html . But I have a small confusion that I could not understand. To check the efficiency of SOM model, I need to find out topographic error, which I could not figure out. I will be really thankful if you please tell me how I can calculate topographic error or any alternative term or which one is the topographic error in the given article. Please accept my apology if I wrote or mentioned something inappropriate. Looking forward to hearing back. Kind regards Bibi
Student request for help in Self Organizing Map (SOM)
2 messages · Riaz Bibi, Jeff Newmiller
Well, this mailing list is about the R language itself, not specific packages or background theory. You may get an answer anyway, but you are likely to have better responses on the R-sig-geo mailing list or contacting the author of the contributed package you are using. Also, do figure out how to configure your email program to send plain text... if you don't you gamble that your message (especially R code) becomes very hard to read after your formatting gets removed by the list.
On May 25, 2021 5:28:12 AM PDT, Riaz Bibi <riazbibibaloch at gmail.com> wrote:
Dear I am Bibi, a PhD student of Environmental Science in South Korea. I am currently writing my research paper and to deal with data I need to do Self Organizing Map (SOM). I am using R version 4.1.0 (2021-05-18) with kohonen package. I was following this tutorial given http://rstudio-pubs-static.s3.amazonaws.com/437468_136a369149e24f24a4d0c152860ab4c3.html . But I have a small confusion that I could not understand. To check the efficiency of SOM model, I need to find out topographic error, which I could not figure out. I will be really thankful if you please tell me how I can calculate topographic error or any alternative term or which one is the topographic error in the given article. Please accept my apology if I wrote or mentioned something inappropriate. Looking forward to hearing back. Kind regards Bibi [[alternative HTML version deleted]]
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