list.parse: Convert an object to list with identical structure

In renkun-ken/rlist: A Toolbox for Non-Tabular Data Manipulation

Convert an object to list with identical structure

Description

This function converts an object representing data to list that represents the same data. For example, a data.frame stored tabular data column-wisely, that is, each column represents a vector of a certain type. list.parse converts a data.frame to a list which represents the data row-wisely so that it can be more convinient to perform other non-tabular data manipulation methods.

Usage

list.parse(x, ...)

## Default S3 method:
list.parse(x, ...)

## S3 method for class 'matrix'
list.parse(x, ...)

## S3 method for class 'data.frame'
list.parse(x, ...)

## S3 method for class 'character'
list.parse(x, type, ...)

Arguments

x	An object
...	Additional parameters passed to converter function
type	The type of data to parse. Currently json and yaml are supported.

Value

list object representing the data in x

Examples

x <- data.frame(a=1:3,type=c('A','C','B'))
list.parse(x)

x <- matrix(rnorm(1000),ncol=5)
rownames(x) <- paste0('item',1:nrow(x))
colnames(x) <- c('a','b','c','d','e')
list.parse(x)

z <- '
a:
  type: x
  class: A
  registered: yes
'
list.parse(z, type='yaml')

renkun-ken/rlist documentation built on March 16, 2023, 8:25 p.m.