CAUTION: External Sender

Hi, Steve,

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I downloaded the new UCINet version – and things are still weird. It seems to relate to saving the NetDraw network as a vna file and then trying to use the saved vna file.

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1. I can use Netdraw to open a UCINet data set and things seem to work OK. The set of networks opens with double arrowheads and I can turn them all off and on. When I have a configuration I like, I want to save it for future manipulation. So I save it as a vna file and shut down NetDraw.
2. It’s when I open the vna file with Netdraw (the built in link from the UCUNet top banner) that things get weird. The networks open, again, with double arrowheads. But when I try to turn the arrowheads off, only a very few of the smaller networks lose their arrowheads. The others retain them.
3. I try opening a different vna file, saved from the older version of UCINet. ?Same thing. Tried opening a vna file from about 5 years ago – same thing.

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There must be something still wonky with respect to NetDraw and the arrowheads – I don’t think 15 years of UCINet vna files have just gone round the bend. Could you look into this?

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Kate McCain

CAUTION: External Sender

Hi, Steve,

?

I downloaded the new UCINet version – and things are still weird. It seems to relate to saving the NetDraw network as a vna file and then trying to use the saved vna file.

?

1. I can use Netdraw to open a UCINet data set and things seem to work OK. The set of networks opens with double arrowheads and I can turn them all off and on. When I have a configuration I like, I want to save it for future manipulation. So I save it as a vna file and shut down NetDraw.
2. It’s when I open the vna file with Netdraw (the built in link from the UCUNet top banner) that things get weird. The networks open, again, with double arrowheads. But when I try to turn the arrowheads off, only a very few of the smaller networks lose their arrowheads. The others retain them.
3. I try opening a different vna file, saved from the older version of UCINet. ?Same thing. Tried opening a vna file from about 5 years ago – same thing.

?

There must be something still wonky with respect to NetDraw and the arrowheads – I don’t think 15 years of UCINet vna files have just gone round the bend. Could you look into this?

?

Kate McCain

CAUTION: External Sender

Hi, Steve,

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Thanks for the quick response. I’m including a word doc with some screen grabs – using both the NetDraw option that comes with the 32 bit UCINet v 6.763 (my node count is rarely over 80, so I followed the suggestion in the website and am using the 32 bit version (. That’s what I should have done before.

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But even if there’s no arrowhead information in the vna file, ?my experience is that Netdraw will open with arrowheads as a matter of course (see first screen grab in the attached document) – and then one turns them off if one doesn’t want them cluttering up the place. That’s how things have worked for me over the years – from my end of things, it looks like the Netdraw app (integrated or stand-alone) may have arrowheads “on” as an opening default (just a guess – I’m the only user in my department or probably in my university AFAIK so there’s no one to ask).

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But as the screen grabs show—I can’t turn ALL the arrowheads off. And I’d really like to do that.

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Anyway – I look forward to any help you can provide. And pointers about what I may have done wrong when downloading/auto-installing the current version of the UCINet package.

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Kate McCain

?

CAUTION: External Sender

Hi, Steve,

?

Thanks for the quick response. I’m including a word doc with some screen grabs – using both the NetDraw option that comes with the 32 bit UCINet v 6.763 (my node count is rarely over 80, so I followed the suggestion in the website and am using the 32 bit version (. That’s what I should have done before.

?

But even if there’s no arrowhead information in the vna file, ?my experience is that Netdraw will open with arrowheads as a matter of course (see first screen grab in the attached document) – and then one turns them off if one doesn’t want them cluttering up the place. That’s how things have worked for me over the years – from my end of things, it looks like the Netdraw app (integrated or stand-alone) may have arrowheads “on” as an opening default (just a guess – I’m the only user in my department or probably in my university AFAIK so there’s no one to ask).

?

But as the screen grabs show—I can’t turn ALL the arrowheads off. And I’d really like to do that.

?

Anyway – I look forward to any help you can provide. And pointers about what I may have done wrong when downloading/auto-installing the current version of the UCINet package.

?

Kate McCain

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Hi Kate, I’m having trouble reproducing your problems. When I turn arrowheads off, they all go off. Can you send vna data? and/or a video. Send to sborgatti@....

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Meanwhile, a few comments that might help tangentially:

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1. Older versions of netdraw always opened ucinet networks with arrowheads, even if the network was undirected. In recent versions, when you read the data, it turns the arrowheads off if it sees that every single tie is reciprocated (which usually means the graph is intended to be undirected). This only applies to ucinet datasets, not to vna files.
2. Older versions of vna files contained no arrowhead information, so any version of netdraw (including the latest) should always show all arrowheads on reading the data. However, if the current netdraw is used to save a vna file, the file will contain arrowhead information, and on reading the file netdraw should only display arrowheads for arcs that had them when the vna file was saved.
3. So you have both an old and a new version of netdraw? It sounds like you don’t have any trouble juggling the two, but it might be good to make sure that in Options|Helper Apps, Ucinet is pointing toward the current version of netdraw. Similarly, any shortcuts for netdraw you might have created outside ucinet should probably be updated to point to the newest version.

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steve

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