Indiv2DataFrame: In case data set is composed of one line per individual, with...
In STdiag: Functions to Plot a Structure-Time Diagram

Description Usage Arguments Value Author(s) See Also Examples

Function to convert an individual based set of measurements into a data frame readable by STdiag. The input table must have one line per individual observed and observations (time, structure, ...) in columns.

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Indiv2DataFrame(tab,
                classes=50,
                columns=c(1,2))

`tab`	Data frame containing the indivudual observations.
`classes`	Integer, number of class to discretize the structuring variable.
`columns`	Vector of dimension 2 (by default c(1,2)), specifying the number of respectively column x (time) and y (structure).

Returns a 3 columns data frame containing the aggregated data to be plotted with STdiag.

Vincent Le Bourlot

expand.grid

# Define a random example data set 
# with one line per individual observed, 
# and time and length in columns
n=20;r=50;
t=round(runif(n=n,min=0,max=100))
example=data.frame(time=sort(rep(t,r)),length=(rnorm(n=n*r,mean=1000,sd=2)))

# Convert into something that STdiag can read
STexample=Indiv2DataFrame(example)

# Plot example
STdiag(data=STexample)