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I'm having mixed results with the 'size scale field' aka graduated symbols in QGIS.

Some forum posts out there say this feature is broken - others can get it to work.

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Maybe you could be a bit more specific about the cases when it does not work for you. If the problem is reproducible, a bug ticket should be filed. – underdark Nov 8 '12 at 9:32
up vote 6 down vote accepted

I was able to make it work. Here's the post

Tutorial: Styling Vector Data in QGIS Using Size-Scale Field

I tested in QGIS 1.8 as well and it works fine too.

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Thanks, sir! I think it does indeed work, but data needs to be in the right format. I'll keep trying!!! – DPSSpatial Nov 20 '12 at 22:22
I do not believe this works in Version 2.6 having played with this for 3 hours and no joy. If it is an implementation, it is far from intuitive. Can we have a link to an updated and correct tutorial? – Mike Upjohn Nov 18 '14 at 21:58
I concur. It does not work in 2.6! – user46147 Feb 6 '15 at 19:04

In my experience, data-defined properties are more reliable than the size-scale field. Give it a try if you are using QGIS 2.6 or higher.

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thanks @underdark!!! – DPSSpatial Feb 6 '15 at 21:51

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