Comments

• swolny Member, NatCap Staff

  July 2018

  Hi Ek -

  
  

  I have not taken the MOOC, but from reading the instructions, it sounds like "roots.txt" should be a file that is provided with the other sample data, along with soil_aoi_32632.tif.  Is "roots.txt" not provided in the sample data?

  
  

  ~ Stacie
• Ekvinay Member

  July 2018 edited July 2018

  Dear Stacie,

  
  

  Thank for your kind response. 

  
  

  Apart from this I also try the 'Colombia's Water Yield' the data provided are useful and could follow and model 'water yield', but when I try to do the same for our own case- It is hardly, for me, for acquisition and pre-processing some data inputs. Where should I find a step-by-step manual for data pre-processing?

  
  

  All the bests,

  Ek

  Post edited by Ekvinay on July 2018
• swolny Member, NatCap Staff

  July 2018

  Hi Ek -

  
  

  I'm talking with our training coordinator about the 'roots.txt' issue, and we'll get back to you on that soon.

  
  

  Unfortunately, we do not have a step-by-step manual that helps you pre-process your own data for InVEST. Everyone gets their data from different sources, and each dataset is different, with a variety of formats and units, so it is hard to make a general guide. However, if you look at the Data Sources section of the User Guide, we do give some ideas, data sources, methods and equations for each data input, that might get you started. Also, if you search the forum, people have asked questions about processing different specific datasets, and there might be useful information for you there. 

  
  

  And of course, if you have specific data questions that are not addressed in the forum or user Guide, please post to the forum and we'll try to help.

  
  

  ~ Stacie

  
  

  
  
• HenryB Member, Administrator, NatCap Staff

  July 2018

  Hi Ek,

  
  

  I'm following up here about the roots.txt issue. When you downloaded the exercise packet from the Unige MOOC, did it come as a compressed folder that then expanded to a folder containing PDFs for the various pieces of the activity, along with a few other files? The roots.txt file is in that directory. I've also attached it here. 

  
  

  In QGIS, from the r.reclass window, in the "File containing reclass rules [optional]" field, enter the file path to roots.txt. You don't need to do any other manipulation to the file itself.

  
  

  Hope this helps!

  
  

  --Henry

  txt

  txt

  roots.txt

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• Ekvinay Member

  July 2018

  Dear Henry,

  
  

  Thank you so much. Yeah I got it and I could reclass now. Yes you are right that It is contained in the zipped folder, but I had thought that It is for only sample data, not for my own data. Now after I compare your given "roots.txt" and the sample's "roots.txt" are the same. Now I understood that it is actually for any.

   

  thank again. (I am sorry for my missing-understand)

  
  

  It helps a lot, and I hope you will concern along my learning path.

  
  

  Yours sincerely,

  Ek

  
  
• Ekvinay Member

  July 2018

  Dear Stacie,

  
  

  I passed it now the issue of 'roots.txt' (Yahoooo! Yey Yey)
  

  
  

  Thank you very much for your clarification and advice. I will try my bests to learn InVEST models, they are wonderful.  In the past, I learn only theory of ecosystem service and never done modelling, but after I learn through the MOOC regarding InVEST software, I think It is suitable model to start in the environment of lacking data like my place. I will start from 'water yield', 'sediment retention'.....I hope you could harness me along my way of learning.

  
  

  Yours sincerely,
  

  Ek
• swolny Member, NatCap Staff

  July 2018

  Great! Glad to hear that you are progressing.

  
  

  One important note is that the sample data is really only to be used for learning the models, it is not intended to be used in your own projects. 

  
  

  Happy to help as you learn.

  
  

  ~ Stacie