https://issues.qgis.org/https://issues.qgis.org/favicon.ico2012-07-25T07:35:12ZQGIS Issue TrackingQGIS Application - Bug report #6096: Negative values are classified incorrectly using new symbologyhttps://issues.qgis.org/issues/6096?journal_id=335122012-07-25T07:35:12ZGiovanni Manghigiovanni.manghi@gmail.com
<ul><li><strong>Status</strong> changed from <i>Open</i> to <i>Feedback</i></li><li><strong>Category</strong> set to <i>Symbology</i></li></ul><p>Can you check if this is a regression since 1.7.4?</p> QGIS Application - Bug report #6096: Negative values are classified incorrectly using new symbologyhttps://issues.qgis.org/issues/6096?journal_id=335152012-07-25T07:54:04ZWes Meltzerwmeltzer@orlandosentinel.com
<ul></ul><p>Giovanni Manghi wrote:</p>
<blockquote>
<p>Can you check if this is a regression since 1.7.4?</p>
</blockquote>
<p>Short answer: no. I never upgraded from 1.7.1 to 1.7.4 (lazy) but this issue is present in 1.7.1. It's hard to believe I never had a data set consisting of mostly negative reals with 1.7!</p>
<p>Note: I discovered one issue that is a red herring. The weirdness with the excess 0.00 values listed above is actually a problem with the dataset the database reporter generated, which only showed up in quantiles mode. Too many null values. This is not an issue with the Quantiles categorization. The negative numbers issue remains if I change the mode, however.</p>
<p>Here is the Jenks categorization for 1.7.1 and 1.8.0:</p>
<p>0.0000 - -0.0714<br />-0.0714 - -0.0420<br />-0.0420 - -0.0282<br />-0.0282 - -0.0185<br />-0.0185 - -0.0083<br />-0.0083 - 0.0030<br />0.0030 - 0.0165</p>
<p>which is still erroneous without manually changing the order of processing. Top line should be -0.0791 - -0.0714.</p> QGIS Application - Bug report #6096: Negative values are classified incorrectly using new symbologyhttps://issues.qgis.org/issues/6096?journal_id=335352012-07-27T01:37:06ZGiovanni Manghigiovanni.manghi@gmail.com
<ul><li><strong>Status</strong> changed from <i>Feedback</i> to <i>Open</i></li><li><strong>Target version</strong> set to <i>Version 2.0.0</i></li></ul> QGIS Application - Bug report #6096: Negative values are classified incorrectly using new symbologyhttps://issues.qgis.org/issues/6096?journal_id=390852013-03-03T17:46:24ZNyall Dawson
<ul></ul><p>By my testing this is fixed by pull request 453:</p>
<p><a class="external" href="https://github.com/qgis/Quantum-GIS/pull/453">https://github.com/qgis/Quantum-GIS/pull/453</a></p> QGIS Application - Bug report #6096: Negative values are classified incorrectly using new symbologyhttps://issues.qgis.org/issues/6096?journal_id=391072013-03-04T13:47:24ZNathan Woodrow
<ul><li><strong>Status</strong> changed from <i>Open</i> to <i>Closed</i></li></ul><p>Fixed in changeset <a class="changeset" href="https://issues.qgis.org/projects/qgis/repository/revisions/7c0746b091498dbe741c34396f7da5bff51030da" title="Merge pull request #453 from nyalldawson/gradfixes Don't treat null values as zero for graduated...">7c0746b091498dbe741c34396f7da5bff51030da</a>.</p>