Some confusion about use dump.cc to dump a readable model

[Lisz1024]

I used the agaricus data to test dump.cc , and have dumped a readable model.
But the model's keys are very large such as 602879701896396800 , the train&test data's feature index only 0 to 120+ .
So I confusing about what key's mean in the readable model? How can I match it with feature'index.

[CNevd]

the original id is reversed here in src/base/localizer.h, try use --max_key=xxx in the command if you know the max key of your data where xxx is a little greater than max key
eg:
max key is 125
use:

../../dmlc-core/tracker/dmlc_local.py -n 1 -s 1 build/difacto.dmlc guide/demo.conf --max_key=126

then it'll keep the original ids as the key

[Lisz1024]

@CNevd thank you very much.
it can work by set max_key use

../../dmlc-core/tracker/dmlc_local.py -n 1 -s 1 build/difacto.dmlc guide/demo.conf -max_key 126

In addition, I try to write a inverse function for ReverseBytes in dump.cc
It can work even if don't know max_key.

[CNevd]

@Lisz1024 great job!