<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false"><div><p style="margin: 0px 0px 1em; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; font-family: Arial, "Helvetica Neue", Helvetica, sans-serif; font-size: 15px; vertical-align: baseline; clear: both; color: rgb(36, 39, 41); background-color: rgb(249, 248, 246);">I am working on a plugin, one of its functions is to create the raster layer histogram. I generate the histogram using the histogram method of QgsRasterInterface and graph it well, without problems in QGis3.4. But in QGis3.0 it does not allow to generate the histogram. This is a recognized error? when creating the histogram in QGis3.0?</p><p style="margin: 0px 0px 1em; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; font-family: Arial, "Helvetica Neue", Helvetica, sans-serif; font-size: 15px; vertical-align: baseline; clear: both; color: rgb(36, 39, 41); background-color: rgb(249, 248, 246);">Details:</p><ul style="margin: 0px 0px 1em 30px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; font-family: Arial, "Helvetica Neue", Helvetica, sans-serif; font-size: 15px; vertical-align: baseline; list-style-position: initial; list-style-image: initial; color: rgb(36, 39, 41); background-color: rgb(249, 248, 246);"><li style="margin: 0px 0px 0.5em; padding: 0px; border: 0px; font-style: inherit; font-weight: inherit; font-stretch: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;">If I get correctly the statistics with bandStatistics</li><li style="margin: 0px 0px 0.5em; padding: 0px; border: 0px; font-style: inherit; font-weight: inherit; font-stretch: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;">The values of histogram.minimum and histogram.maximum do not coincide with the maximum and minimum of the statistics.</li><li style="margin: 0px 0px 0.5em; padding: 0px; border: 0px; font-style: inherit; font-weight: inherit; font-stretch: inherit; line-height: inherit; font-family: inherit; vertical-align: baseline;">Try assigning the maximum, minimum and extension parameters. As well as placing None,None, but I still did not get a result</li></ul><div dir="ltr" data-setdir="false"><br></div></div><div><div>Thank you, I look forward to your help</div><div><br></div><div>Luis Eduardo Perez</div><div>Venezuela</div><div>Developer in formation :)</div></div><br></div></div></body></html>