Check whether a note info string is comprised exclusively of valid note info
syntax.
noteinfo returns a scalar logical result indicating whether the entire set
contains exclusively valid entries.
informable(x, na.rm = FALSE)
as_noteinfo(x, format = NULL)
is_noteinfo(x)depends on the function
as_noteinfo() can be used to coerce to the noteinfo class.
Coercion will fail if the string is has any syntax that is not valid for
note info.
Using the noteinfo class is generally not needed by the user during
an interactive session, but is available and offers its own print() and
summary() methods for note info strings.
The class is often used by other functions, and functions that output a
note info string attach the noteinfo class.
When format = NULL, the timestep delimiter format is inferred from the note
info string input. When unclear, such as with phrase objects, the default is
space-delimited time.
a <- notate("8x", "Start here")
x <- paste(a, "8[stacatto] 8-. 16 4.. 16- 16 2^ 2 4. 8( 4)( 4) 8*4 1 1")
informable(x) # is it of 'noteinfo' class; a validity check for any string
#> [1] TRUE
x <- as_noteinfo(x) # coerce to 'noteinfo' class
is_noteinfo(x) # check for 'noteinfo' class
#> [1] TRUE
x
#> <Note info string>
#> Format: space-delimited time
#> Values: 8x;^"Start_here" 8[stacatto] 8-. 16 4.. 16- 16 2^ 2 4. 8( 4)( 4) 8 8 8 8 1 1
summary(x)
#> <Note info string>
#> Timesteps: 19
#> Format: space-delimited time
#> Values: 8x;^"Start_here" 8[stacatto] 8-. 16 4.. 16- 16 2^ 2 4. 8( 4)( 4) 8 8 8 8 1 1