Re: [igraph] beginner's help on igraph in R

[Lin Freeman]

First, let me thank you for responding and for changing the script so
quickly.  My problem, however, remains.  I am using version 0.5.1 of
igraph and I upgraded from R 2.6.2. to 2.7.2.  Nevertheless, when I go
through the same routine,
> library(igraph)
> source("GUI.R")

Graph > Create >By hand

enter data as:
0 1
1,2
& then close the data window and hit "OK" on the "Creating a graph by
havd" window,
the RGgraphics Device 2 window opens, but remains blank.

And my Terminal window shows the following error statement:

R version 2.7.2 (2008-08-25)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(igraph)
> source("GUI.R")
Loading required package: tcltk
Loading Tcl/Tk interface ... done
>
 *** caught segfault ***
address 0x88b0f980, cause 'memory not mapped'

Traceback:
 1: .Call("R_igraph_is_connected", graph, as.numeric(mode), PACKAGE = "igraph")
 2: is.connected(graph)
 3: v(graph)
 4: ret()
 5: params("plot", "layout")
 6: plot.igraph(...)
 7: fun(g, layout = layouts[[read$layout + 1]], vertex.size =
read$vertex.size,     vertex.label = labels, vertex.label.dist =
label.dist, edge.label = elabels,     edge.arrow.size = eas, ...)
 8: .tkigraph.plot(simple = TRUE)
 9: function () {    .tkigraph.plot(simple = TRUE)}()
10: doTryCatch(return(expr), name, parentenv, handler)
11: tryCatchOne(expr, names, parentenv, handlers[[1]])
12: tryCatchList(expr, classes, parentenv, handlers)
13: tryCatch(expr, error = function(e) {    call <- conditionCall(e)
 if (!is.null(call)) {        if (identical(call[[1]],
quote(doTryCatch)))             call <- sys.call(-4)        dcall <-
deparse(call)[1]        prefix <- paste("Error in", dcall, ": ")
 LONG <- 75        msg <- conditionMessage(e)        sm <-
strsplit(msg, "\n")[[1]]        if (14 + nchar(dcall, type = "w") +
nchar(sm[1], type = "w") >             LONG)             prefix <-
paste(prefix, "\n  ", sep = "")    }    else prefix <- "Error : "
msg <- paste(prefix, conditionMessage(e), "\n", sep = "")
.Internal(seterrmessage(msg[1]))    if (!silent &&
identical(getOption("show.error.messages"),         TRUE)) {
cat(msg, file = stderr())        .Internal(printDeferredWarnings())
}    invisible(structure(msg, class = "try-error"))})
14: try(function () {    .tkigraph.plot(simple = TRUE)}())

Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace
Selection:

Sorry about that.

Best,
LinFreeman

On Thu, Sep 25, 2008 at 6:22 AM, Gabor Csardi <address@hidden> wrote:
> Ok, I've updated the script at http://geza.kzoo.edu/~csardi/socnet.R
> Now it should work with the igraph R package version 0.5.1.
> I've used it with R 2.7.2. Please tell me if you still experience
> problems.
>
> The script will be part of igraph from version 0.6. There are, however,
> no plans to improve it in any way, except for writing some documentation
> for it.
>
> Thanks for your report, Best Regards,
> Gabor
>
> On Tue, Sep 23, 2008 at 09:07:05AM -0700, Lin Freeman wrote:
>> By the way, igraph works fine and produces images if I type commands
>> and avoid the gui.  For example, the commands "clique <-
>> graph.full(5)" followed by "plot(clique)" is successful in generating
>> an image.
>>
>> Lin
>>
>> On Tue, Sep 23, 2008 at 6:38 AM, Csardi Gabor <address@hidden> wrote:
>> > Oh, ok, I know about this, of course. Could you please tell me
>> > what you did to make it crash? I'll need to be able to reproduce
>> > the crash.
>> >
>> > Best,
>> > Gabor Csardi
>> >
>> > On Tue, Sep 23, 2008 at 06:33:10AM -0700, Lin Freeman wrote:
>> >> Professor Csardi,
>> >>
>> >> Thank you for your answer.  GUI.R is a small gui found at
>> >> "http://geza.kzoo.edu/~csard/socnet.R.  It is a script that was
>> >> designed to help beginners like me to get started with igraph.  And it
>> >> works well in the windows version.  I have attached it here.
>> >>
>> >> Best,
>> >> Lin Freeman
>> >>
>> > [...]
>> >
>> > --
>> > Csardi Gabor <address@hidden>    MTA RMKI, ELTE TTK
>> >
>> >
>> > _______________________________________________
>> > igraph-help mailing list
>> > address@hidden
>> > http://lists.nongnu.org/mailman/listinfo/igraph-help
>> >
>> > --
>> > This message has been scanned for viruses and
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>> >
>> >
>>
>>
>>
>> --
>> Linton C. Freeman
>> Institute for Mathematical Behavioral Sciences and
>> Department of Sociology
>> School of Social Sciences SSPA 2143
>> University of California
>> Irvine, CA 92697-5100
>>
>> Office: (949) 824-6698
>> Home (CA): (949) 494-6139
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>>
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>
>
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>
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-- 
Linton C. Freeman
Institute for Mathematical Behavioral Sciences and
Department of Sociology
School of Social Sciences  SSPA 2143
University of California
Irvine, CA 92697-5100

Office:             (949) 824-6698
Home (CA):      (949) 494-6139
          (FL):      (941) 778-1074
Secretary:        (949) 824-3663
FAX:                (949) 824-3733