Error with PC-All - JavaException: Sorry, I was expecting a discrete data set.

[jmcoftrindade]

When attempting the code below, I get this error about the data set.

However, I've sucessfully ran FGES discrete (with discrete score-types) for the same data set, so I'm wondering what is the problem.

--- Code ---

'''
df reads a file like this (with more lines obviously)

Cancer,Dyspnoea,Pollution,Smoker,Xray
1,1,0,1,1
1,1,0,1,0
1,1,0,1,1
1,1,0,1,1
explicitly make sure that all values are ints
'''
int_df = df.astype(int)

ind_test = chi-square-test

tetrad.run(algoId = 'pc-all', dfs = int_df, testId = ind_test,
colliderDiscoveryRule = 1, fasRule = 2, depth = 2,
stableFAS = True ,conflictRule = 1, concurrentFAS = True,
useMaxPOrientationHeuristic = True, verbose = True)