TransInfo {GrpString}

Transitions in one group of strings

Description

TransInfo discovers transitions of two adjacent characters in strings.

A transition is defined as a substring (in the forward order) with length of 2 characters.

Usage

TransInfo(strings.vec, type1 = "letters", type2 = "digits")

Arguments

strings.vec

String Vector.

type1

The first type of transition. Default value is letter.

type2

The second type of transition. Default value is digit.

Value

The function returns a data frame, which contains the numbers of type1 transition, type2 transition, and transitions belonging to neither type1 nor type2.

Note

Strings with less than 2 characters are not included due to the definition of transition.

References

1. H. Tang; E. Day; L. Kendhammer; J. N. Moore; S. A. Brown; N. J. Pienta. (2016) Eye movement patterns in solving science ordering problems. Journal of eye movement research, 9(3), 1-13.

2. J. J. Topczewski; A. M. Topczewski; H. Tang; L. Kendhammer; N. J. Pienta.(2017) NMR Spectra through the eyes of a student: eye tracking applied to NMR items. Journal of chemical education, 94(1), 29-37.

See Also

TransMx

Examples

# default values
strs.vec <- c("ABCDdefABCDa", "def123DC", "123aABCD", "ACD13", "AC1ABC", "3123fe")
TransInfo(strs.vec)

# non-default values
str1.vec <- c("ABCABEF", "CDCDAB")
TransInfo(str1.vec, type1 = "AB", type2 = "CD")