---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-14-142e6d758852> in <module>()
     39 
     40 
---> 41 fit = ps.stan(model_code=code, data= dat, iter=1000, chains=4)

/home/vdesai/anaconda/lib/python2.7/site-packages/pystan/api.pyc in stan(file, model_name, model_code, fit, data, pars, chains, iter, warmup, thin, init, seed, algorithm, control, sample_file, diagnostic_file, save_dso, verbose, boost_lib, eigen_lib, n_jobs, **kwargs)
    371         m = StanModel(file=file, model_name=model_name, model_code=model_code,
    372                       boost_lib=boost_lib, eigen_lib=eigen_lib,
--> 373                       save_dso=save_dso, verbose=verbose)
    374     # check that arguments in kwargs are valid
    375     valid_args = {"chain_id", "init_r", "test_grad", "append_samples",

/home/vdesai/anaconda/lib/python2.7/site-packages/pystan/model.pyc in __init__(self, file, charset, model_name, model_code, stanc_ret, boost_lib, eigen_lib, save_dso, verbose, obfuscate_model_name)
    217                                          model_name=model_name,
    218                                          verbose=verbose,
--> 219                                          obfuscate_model_name=obfuscate_model_name)
    220 
    221         if not isinstance(stanc_ret, dict):

/home/vdesai/anaconda/lib/python2.7/site-packages/pystan/api.pyc in stanc(file, charset, model_code, model_name, verbose, obfuscate_model_name)
    127     if result['status'] == -1:  # EXCEPTION_RC is -1
    128         error_msg = "Failed to parse Stan model '{}'. Error message:\n{}".format(model_name, result['msg'])
--> 129         raise ValueError(error_msg)
    130     elif result['status'] == 0:  # SUCCESS_RC is 0
    131         logger.debug("Successfully parsed Stan model '{}'.".format(model_name))

ValueError: Failed to parse Stan model 'anon_model_ab2f61216a7ae58aecc1b6909fbdfbee'. Error message:
SYNTAX ERROR, MESSAGE(S) FROM PARSER:

Illegal statement beginning with non-void expression parsed as
  get_base1(ravg,t,"ravg",1)
Not a legal assignment, sampling, or function statement.  Note that
  * Assignment statements only allow variables (with optional indexes) on the left;
    if you see an outer function logical_lt (<) with negated (-) second argument,
    it indicates an assignment statement A <- B with illegal left
    side A parsed as expression (A < (-B)).
  * Sampling statements allow arbitrary value-denoting expressions on the left.
  * Functions used as statements must be declared to have void returns


ERROR at line 21

 19:        real ravg[T];
 20:        for (t in 1:p-1)
 21:            ravg[t] = 0;
                ^
 22:        for (t in p:T){

PARSER EXPECTED: <statement>