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process evaluation packages (slightly off topic)

5 messages · Bert Gunter, Rui Barradas, PIKAL Petr

#
Dear all

I need to perform some process evaluation. Sorry for not posting data and 
code - I do not have any, I ask only for pointing me to correct direction.

Suppose I have several connected processes P1, P2, ..., Pn. Each process 
takes some time and have some capacity (let say like preparing a dinner 
for several persons - only one stove, limited capacity of utensils, 
heating and cooling takes some time) and some processes can by cyclic (fry 
onion in pan, put it aside, in the same pan fry meat, put an onion and 
some water and simmer for a while...). 

I can prepare some oriented graph (paper/pencil) or Word or drawing 
programme, I can also evaluate whole process by shading spreadsheet cells 
but those two tasks are not connected.

Is there any R package/other software suitable for simplifying or helping 
in such tasks? E.g. When I prepare oriented graph with capacity and time 
for each node is there any automatic way to transfer this graph to 
timeline to see how long whole process will take, where are bottlenecks or 
so?

Thank you

Petr
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Search on "R package Gantt", where you will find, among others,

http://cran.r-project.org/web/packages/plan/plan.pdf

-- Bert
On Tue, Aug 7, 2012 at 1:28 AM, Petr PIKAL <petr.pikal at precheza.cz> wrote:

  
    
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Hello,

There's also, apparently for simple needs, plotrix::gantt.chart
See an example in
http://addictedtor.free.fr/graphiques/sources/source_74.R

To transfer graphs to timelines, etc, (or anything graph related) 
package igraph.

Hope this helps,

Rui Barradas

Em 07-08-2012 14:46, Bert Gunter escreveu:
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Thanks Bert

However this package is quite simple and actually it is just only plotting 
routine for already prepared list. This can be done by reading appropriate 
file but need a step before - prepare timeline from oriented graph which I 
did not find yet and the only way I know is pencil/paper and manual 
transformation of such oriented graph to a kind of Gantt diagramme.

Thank you again anyway. Maybe in some time the plan package will evolve to 
more complex routine.

Dest regards
Petr
wrote:
and
direction.
process
dinner
(fry
cells
helping
time
bottlenecks or
http://www.R-project.org/posting-guide.html
#
Thanks Rui

igraph seems to be more related to my problem, so I will try to play with 
it.

Regards

Petr
wrote:
and
direction.
process
dinner
(fry
and
cells
helping
time
bottlenecks or
http://www.R-project.org/posting-guide.html
http://www.R-project.org/posting-guide.html