Hello,

I am trying to compile and run HBC, but I'm failing miserably. I am doing this on Debian 6.0.1 (Squeeze) with version 6.8.2 of GHC (released 12 December 2007):

=====
$ /opt/ghc-6.8.2/bin/ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.8.2
=====

Here is the output when compiling HBC (only the warning is shown):

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$ /opt/ghc-6.8.2/bin/ghc --make -fglasgow-exts -O2 Main.hs -o hbc
...
[20 of 23] Compiling Simulate         ( Simulate.hs, Simulate.o )

Simulate.hs:820:0:
    Warning: No explicit method nor default method for `DAB.getNumElements'
    In the instance declaration for `MArray a e (StateT s m)'
...
=====

When I simulate the included LDA model, I get the following:

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$ ./hbc simulate --define K 2 --loadD testW w V D N ';' --iter 10 --dump best z ';' --define alpha 1 --define eta 1 LDA.hier
     __  ____   ____
    / / / /  \ / __/  HBC: The Hierarchical Bayes Compiler
   / /_/ / / // /     http://hal3.name/HBC/
  / __  / --</ /     
 / / / / /  / /___    Version 0.7 beta
 \/ /_/____/\____/   

Loading module LDA.hier
Building core module
Adding functions...
Defining passed-in variables...
Running other initializations...
hbc: Simulate.hs:820:0: No instance nor default method for class operation Data.Array.Base.getNumElements
=====

Does anyone have any insight into this problem? Can anyone suggest a GHC version that produces a working HBC?

Many thanks!
Matt Gerber

ghc --make --fglasgow-exts Main -o hbc

Error:
Code.opt.hs:33:8:
Could  not find module 'Data.Generics.Schemes'

Hi all,
I'm new to HBC, i find it very powerfull and usefull!
My question is quite simple: can i read from two different input files using the --loadD command?
I'm not able to do this, and i can't figure out if it's my fault or if the tool doesn't permits this kind of operation

Thanks in advance!
 

Hi,
   Getting the following error even after following the link. Let me know where am i going wrong.

Sincerely
Tanmoy Mukherjee

Hi,
   Been trying to compile GenC.hs and am getting the following errors
GenC.hs 154:37
                      Couldn't match expected type `[t]'
                                 against inferred type `Maybe Type'
                      In the first argument of `mplus', namely `M.lookup v' tm'
                      In the expression: M.lookup v' tm `mplus` M.lookup v' etm
                      In a stmt of a list comprehension:
                          t<-M.lookup v' tm `mplus` M.lookup v' etm

Could any one help me with this issue ?

Sincerely
Tanmoy Mukherjee