FrameList: Convert lines from an Eprime file into EprimeFrame objects

In rprime: Functions for Working with 'Eprime' Text Files

Description

Convert character vectors of implicit key-value pairs (e.g., c("key1: value1", "key2: value2")), into lists of explicit key-value pairs, list(key1 = "value1", key2 = "value2").

Usage

FrameList(x)

Arguments

x	a character vector with lines of the form "key: value", or a list of vectors of colon-separated text

Details

During the conversion, if Running: x, then the x.Sample and x.Cycle lines are simplified into Sample and Cycle lines. The x: value line is recoded as Eprime.LevelName: x_value. The purpose of this tidying is to force the same set of key names (eventually, column names) onto frames with different values for "Running".

Value

When passed a list of character vectors of "key: value" lines, a FrameList object (a list of EprimeFrames) is returned. when passed a single vector vector of "key: value" lines, a single EprimeFrame object is returned inside of a FrameList object.

Examples

lines <- c("\t*** LogFrame Start ***",
           "\tProcedure: FamTask",
           "\titem1: bear",
           "\titem2: chair",
           "\tCorrectResponse: bear",
           "\tImageSide: Left",
           "\tDuration: 885",
           "\tFamiliarization: 1",
           "\tFamInforcer: 1",
           "\tReinforcerImage: Bicycle1",
           "\tFamiliarization.Cycle: 1",
           "\tFamiliarization.Sample: 1",
           "\tRunning: Familiarization",
           "\tFamTarget.RESP: ",
           "\tCorrect: True",
           "\t*** LogFrame End ***")
# List of 1
# $ :List of 17
# ..$ Eprime.Level      : num 2
# ..$ Eprime.LevelName  : chr "Familiarization_1"
# ..$ Eprime.Basename   : chr "NA"
# ..$ Eprime.FrameNumber: chr "1"
# ..$ Procedure         : chr "FamTask"
# ..$ Running           : chr "Familiarization"
# ..$ item1             : chr "bear"
# ..$ item2             : chr "chair"
# ..$ CorrectResponse   : chr "bear"
# ..$ ImageSide         : chr "Left"
# ..$ Duration          : chr "885"
# ..$ FamInforcer       : chr "1"
# ..$ ReinforcerImage   : chr "Bicycle1"
# ..$ Cycle             : chr "1"
# ..$ Sample            : chr "1"
# ..$ FamTarget.RESP    : chr ""
# ..$ Correct           : chr "True"
# ..- attr(*, "class")= chr [1:2] "EprimeFrame" "list"
# - attr(*, "class")= chr [1:2] "list" "FrameList"

rprime documentation built on Oct. 23, 2020, 6:55 p.m.