A convenient way to build a data.frame in legible transposed form. Position of first "|" (or other infix operator) determines number of columns (all other infix operators are aliases for ","). Names are de-referenced.
build_frame(..., cf_eval_environment = parent.frame())
cell names, first infix operator denotes end of header row of column names.
environment to evaluate names in.
character data.frame
# NOT RUN {
tc_name <- "training"
x <- build_frame(
"measure", tc_name, "validation" |
"minus binary cross entropy", 5, -7 |
"accuracy", 0.8, 0.6 )
print(x)
str(x)
cat(draw_frame(x))
build_frame(
"x" |
-1 |
2 )
# }
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