ProjectManagement (version 1.5.2)

last.time: Last time for a deterministic projects

Description

This function calculates the last time for one project.

Usage

last.time(prec1and2 = matrix(0), prec3and4 = matrix(0), duration, early.times)

Value

Last time vector.

Arguments

prec1and2

A matrix indicating the order of precedence type 1 and 2 between the activities (Default=matrix(0)). If value \((i,j)=1\) then activity \(i\) precedes type \(1\) to \(j\), and if \((i,j)=2\) then activity \(i\) precedes type \(2\) to \(j\). Cycles cannot exist in a project, i.e. if an activity \(i\) precedes \(j\) then \(j\) cannot precede \(i\).

prec3and4

A matrix indicating the order of precedence type 3 and 4 between the activities (Default=matrix(0)). If value \((i,j)=3\) then activity \(i\) precedes type \(3\) to \(j\), and if \((i,j)=4\) then activity \(i\) precedes type \(4\) to \(j\). Cycles cannot exist in a project, i.e. if an activity \(i\) precedes \(j\) then \(j\) cannot precede \(i\).

duration

Vector with the duración for each activity.

early.times

Vector with the early times for each activities.

References

bur

Burke, R. (2013). Project management: planning and control techniques. New Jersey, USA.

Examples

prec1and2<-matrix(c(0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0),nrow=5,ncol=5,byrow=TRUE)
duration<-c(3,2,1,1.5,4.2)
early.times<-c(0,0,3.5,2,0)
last.time(prec1and2,duration=duration,early.times=early.times)