is_type_field: Check whether fields are specified type

In chriszheng2016/zstmodelr: Stock Factor Models for China Stock Market Investment

Description

Predicate fields of dataframe are specified type or not.

Usage

is_type_field(
  data,
  expect_type = c("numeric", "integer", "double", "character", "date", "factor",
    "list", "NA"),
  negate = FALSE,
  predicate_fun = NULL,
  ...
)

Arguments

data	A vector of date/timestamps.
expect_type	A character of type to test, e.g. "numeric", "integer", "double", "character", "date", "factor", "list", "NA"
negate	A logic flag of whether to negate expect_type of not, Default FALSE means not to negate the expect_type.
predicate_fun	A function used as testing, return TRUE if matched. Default NULL means not to use predicate_fun for testing.
...	Params to predicate_fun.

Value

return a vectors of logical with same length of names of dataframe.

Note

numeric means integer or double; double don't include date.

See Also

Other utils_fields: expect_type_fields(), verify_fields()

chriszheng2016/zstmodelr documentation built on June 13, 2021, 8:59 p.m.