Error in is.nan(scores) : default method not implemented for type 'list'

[João Paulo Araújo Lessa]

Hi guys,

I am trying to estimate a score through 'fscores' function. Here is my syntax:

# Estimating proficiencies

Language_wide$proficiency_LI<-fscores(ch_m3pl_LI, method = "EAP",response.pattern=answers)[,'th_ch']

Then, I get this message:

Error in is.nan(scores) : default method not implemented for type 'list'

Does anyone know what might be happening?

Regards,

[Hugo Harada]

What str(answers) returns?

Hugo

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	Hugo Harada Sócio-fundador - COO Adaptativa Inteligência Educacional S.A. Cel: (11) 96345-0390 Rua Claudio Soares, 72 - Sala 411Pinheiros, CEP 05422-030, São Paulo - SP  http://www.adaptativa.com.br

[Phil Chalmers]

Also, can you provide a short reprex?

Phil

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[João Paulo Araújo Lessa]

Thank you all. 

I am sorry in the delay, but the problem was the missing values. There were lots of 'NAs' in the dataframe. I couldn't realize it until I coded 'str(answers)' just like Hugo asked for. 

Cheers,

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Atenciosamente,

João Paulo A. Lessa

Mestre e Doutorando em Psicologia, com ênfase em Avaliação Psicológica - USF/SP

Especialista em Psicologia - IPOG

CRP 15/3753

http://lattes.cnpq.br/4121001609097248

orcid.org/0000-0003-0751-7662