Posts by Erikson K. • 86 points
3 posts
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answer216
viewsA: Parameter estimation via mount Rlo and Optim function
Important: I am not familiar with the Birnbaum-Saunders distribution. All code is based on Kundu, Balakrishnan and Jamalizadeh (2010). The article does not address the problem of censorship of…
ranswered Erikson K. 86 -
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viewsA: Decrease default error in Fitting (Std Error) R
Standard errors are high because the adjustment of the model to the data is very bad, due to the definition of the non-linear function and the limits imposed for the values of the parameters. It is…
ranswered Erikson K. 86 -
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answers157
viewsA: Using a dataframe values in ifelse
If the events contain the correct information about the servers, as in the given example, just use the function regmatches together with the relevant regular expression to extract the substrings of…
ranswered Erikson K. 86