setArgsList: Functions to support importWizard

In tkWidgets: R based tk widgets

Description

The functions are to support importWizard and may not have much practical use otherwise.

Usage

setArgsList(filename, env, isFile = TRUE, init = TRUE)
whatDeli(delimiter)
getMoreArgs()
assignArgs(value, env)
getArgs(env)
assignShowNum(value, env)
getShowNum(env)
assignCState(value, env)
getCState(env)
assignColInfo(value, env)
getColInfo(env)
setColInfos(types, env)
changeState(canvas, backBut, nextBut, env, forward = TRUE, endBut, viewBut)
setNewState(env, backBut, nextBut, forward = TRUE, endBut, viewBut)
addArgs(env)
dropArgs(env)
setSkip(widget, env, state = "state1")
moreArgs(env)
dropColumn(index, env)
setColName(index, entryBox, env)
setColType(index, entryBox, env)
assignLineData(lineData, env)
getLineData(env)

Arguments

filename	filename a character string for the full name of a file
env	env an R environment object for storing information
delimiter	delimiter a character string for the delimiter whose letter representation is sought
value	value a character or numerical value to be assigned to a variable
backBut	backBut a tkwin object for the button that shifts back to the previous state
nextBut	nextBut a tkwin object for the button that shifts to the next state
forward	forward a boolean indicating the direction of state change
widget	widget a tcltl widget
state	state a character string for the state of importing process
index	index an integer for the index of the list for column information
entryBox	entryBox

a tcltk entry box.

canvas	canvas a tcltk canvas
types	types a vecter of string indicating the types of data columns
lineData	lineData a vector of character strings read in using readLines
endBut	endBut a tkwin object for the button that ends the process when pressed
viewBut	viewBut a tkwin object for the button that refresh the window when pressed
init	init a boolean that is TRUE when the widget is first set up and FALSE otherwise
isFile	isFile a boolean that is TRUE if fileName is a file

Details

setArgsList calls function guess.sep to figure out the the header, sep, and data type of a file and sets the values for argument list and colInfo.

whatDeli gets the word representation of delimiters (e.g. tab for "\t").

getMoreArgs generates a widget using widgetTools to collect some of the arguments for read.table.

assignArgs updates "argsList" stored in a predefined environment.

getArgs Gets "argsList" from a predefined environment.

assignShowNum Updates the value for "showNum" (number of rows to show in the interface.

getShowNum Gets the value for "showNum" (number of rows to show in the interface.

link{assignCState} Updates the value of "currentState" that is stored in a predefined environment.

getCState Gets the vlaue of "currentState" that is stored in a predefined environment.

assignColInfo Updates the values of "colInfos" (column information) that is stroed in a predefined environment.

getColInfo Gets the values of "colInfos" (column information) that is stroed in a predefined environment.

setColInfos Creates colInfo objects and sets the value of 'colInfos' list.

changeState changes the state and thus the interface of a widget.

setNewState sets the state of a importing process.

addArgs adds a new state to the argument list for states.

dropArgs removes a state from the argument list for states.

setSkip Sets the value for the number of lines to skip when readling a data file.

moreArgs Gets some of the arguments for importing data using read.table.

dropColumn Sets the index values for data columns that are going to be droped when read using read.table.

setColName Sets the column names for a data file by getting column names from correct entry boxes.

setColType Sets the column type for a data file by getting column type information from correct entry boxes.

Value

whatDeli returns a character string.

getMoreArgs returns a list of arguments.

getArgs returns a list of the arguments for read.table.

getShowNum returns an integer for the number of rows to show.

getCState returns a character string for the current state.

getColInfo returns a colInfo object contains column information.

Author(s)

Jianhua Zhang

See Also

importWizard

Examples

  # No example is given as functions require the set up of the working
  # environment. 

tkWidgets documentation built on Nov. 8, 2020, 5:17 p.m.