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TraMineR (version 1.8-8)

Trajectory miner: a toolbox for exploring and rendering sequence data

Description

This package is a toolbox for sequence manipulation, description, rendering and more generally the mining of sequence data in the field of social sciences. Though it is primarily intended for analyzing state or event sequences that describe life courses such as family formation histories or professional careers its features also apply to many other kinds of categorical sequence data. It accepts many different sequence representations as input and provides tools for translating sequences from one format to another. It offers several statistical functions for describing and rendering sequences, for computing distances between sequences with different metrics among which optimal matching, the longest common prefix and the longest common subsequence, and simple functions for extracting the most frequent subsequences and identifying the most discriminating ones among them. A user's guide can be found on the TraMineR web page.

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Version

Install

install.packages('TraMineR')

Monthly Downloads

2,992

Version

1.8-8

License

GPL (>= 2)

Maintainer

Gilbert Ritschard

Last Published

January 14th, 2014

Functions in TraMineR (1.8-8)

Lengths of event sequences

TraMineRInternalLayout

Access to TraMineR internal functions

Dissimilarity Tree

Example data set: sequences of family formation

Example data set: Activity calendar from the Swiss Household Panel (time stamped event format)

Plot method for state sequence objects

Event sequence object

Example data set: Activity calendar from the Swiss Household Panel

Check if sequences are in the compressed or extended format

Example data sets with weighted and unweighted sequence data

plot.stslist.meant

Plot method for objects produced by the seqmeant function

Example data set: Family life states from the Swiss Household Panel biographical survey

Get or set the color palette of a sequence object

Sequence of modal states

plot.subseqelistchisq

Plot discriminant subsequences

Check if sequence contains events

Identifying discriminating subsequences

Example data set: Transition from school to work

Searching for frequent subsequences

Example data set with missing values and weights

TraMineR-package

Trajectory miner: a toolbox for exploring and rendering sequence data

plot.subseqelist

Plot frequencies of subsequences

plot.stslist.modst

Plot method for modal state sequences

plot.stslist.statd

Plot method for objects produced by the seqstatd function

Setting time constraints and the counting method

Checking for the presence of given event subsequences

plot.stslist.rep

Plot method for representative sequence sets

Plot a legend for the states in a sequence object

Sequence length

Complexity index of individual sequences

Search for the first occurrence of a given element in a sequence

Logarithm of the probabilities of state sequences

Extract distinct states sequence from a sequence object

Conversion between sequence formats

Concatenate vectors of states or events into a character string

Create event sequence objects.

Random sequences generation

Compare two state sequences

Create a state sequence object

Read a distance matrix produced by TDA.

Convert a character string into a vector of states or events

Create a transition-definition matrix

Dimension of a set of sequences

Setting or retrieving weights of an event sequence object.

Get or set the alphabet of a sequence object

Retrieve unique ids from an event sequence object.

Dissimilarity based discrepancy

Multi-factor ANOVA from a dissimilarity matrix

Position-wise discrepancy analysis between groups of sequences

Plotting a seqdiff object.

Computation details about a pairwise alignment

Extracting sets of representative objects using a dissimilarity matrix

Terminal node membership

Graphical representation of a dissimilarity tree

List of distinct states or events (alphabet) in a sequence data set.

Recoding state sequence objects and factors

Indexes of state sequence(s) x in state sequence object y

String representation of an event sequence object

Number of transitions in a sequence

Find patterns in sequences

Parallel coordinate plot for sequence data

Get or set the state labels of a sequence object

Plot state sequence objects

plot.stslist.freq

Plot method for sequence frequency tables

Frequency table of the sequences

Mean durations in each state

Compute the length of the longest common subsequence of two sequences

Adds separators to sequences stored as character string

Tree structured analysis of a state sequence object.

Within sequence entropies

State frequencies in each individual sequence

Compute transition rates between states

State frequencies in the whole sequence data set

Graphical rendering of a sequence regression tree

Create a substitution-cost matrix

Compute the length of the longest common prefix of two sequences

Number of matching positions between two sequences.

Multichannel distances between sequences

Distances (dissimilarities) between sequences

Number of distinct subsequences in a sequence.

Sequence of transversal state distributions and their entropies

Extracting sets of representative sequences

TraMineR.checkupdates

Check for TraMineR updates

Analysis of discrepancy from dissimilarity measures

Compute distances to the center of a group

Sequences turbulence

Extract state durations from a sequence object.

Transform into a sequence object with numerical alphabet.