[PDF] Introduction to the pls Package

How to handle two types of observations in R?

To handle thetwo types of observations, we use two vectors, one for the numbers, another one to indicate ifthe number is a right censored one. In R, we represent the data by In R they are later used as inSurv( stime, status ). Right censoring happens for thecase ofamldata set, variable time and status. Try

What is the use of predict() method?

The predict()method computes predicted means (default) or probabilities (i.e., likelihood contributions) for observed or new data. Additionally, the means from the count and zero component, respectively, can be predicted. For the count component, this is the predicted count mean (without hurdle/in ation): exp(x> i ).

How do I install a ran package in R?

The easiest way is to start R and clickthe buttonInstall package from CRAN...and follow instruction from there. library(survival) # load it. You can also # click the pull-down manual for packages and load it. library(help=survival) # see the list of available functions and data sets.

What is a generalized linear model in R?

The classical Poisson, geometric and negative binomial models are described in a generalized linear model (GLM) framework; they are implemented in R by the glm() function (Chambers and Hastie1992) in the stats package and the glm.nb() function in the MASS package (Venables and Ripley2002).