Evaluate a character vector as a dataframe (a tbl_df)

Function to evaluate a character vector as a dataframe (a tbl_df).

Usage

evalTextAsDataframe(char_vec, comment = "#")

Arguments

char_vec

• character vector to parse/evaluate as a dataframe

comment

• string indicating that what follows is a comment

Value

a dataframe (actually a tbl_df, see tibble::tibble())

Details

Each element in char_vec is regarded as a line of text (as in a text file). The dataframe structure and column types are determined by readr::read_table().

This function differs from extractDataframe() in that, after comments are removed are removed from the input character vector char_vec, the resulting character vector is regarded as defining the dataframe. In extractDataframe(), the input character vector may be a much larger section of text than what defines the dataframe to be extracted, but the number of rows (n) to extract is known as, is the index of the element to begin with (start).

Examples

if (FALSE) {
# example code
str<-paste0('
  id        function  frame   params              description
  pwrLaw1   pwrLaw1   mfALL   pA,pB               w(z)_=_pA_*_(z^pB)
  pwrLaw2   pwrLaw2   mf2024  pLnA,pLnS,pB,pZ0    w(z)_=_exp(pLnA+pLnS+pB*ln(z/pZ0))
')
dfr = txt |> splitText() |> evalTextAsDataframe();
}