GrpString (version 0.5.1)

TransInfo: 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. It can be considered as a special common pattern (length of 2).

Usage

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

Value

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

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.

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")