Difference: StewartBoogertPhotometry20172020 (3 vs. 4)

Revision 420 Oct 2017 - RebekahChafer1

Line: 1 to 1
META TOPICPARENT name="StewartBoogertPhotometry2017"
Added error bars to the Histogram
Line: 28 to 28
When the range was default over all data, histograms were plotted like this (see below), and the range and number of bins had to be input for each individual image. Autorange.png

When we automated the range choice, we received this comb effect


which caused our fit to skew downwards due to the zeros in some of the bins. We found that this was due to the histogram data being integers and the bin width being <1. Therefore, there wasn't an integer value in every bin. This was accounted for by making an automatic number of bins.


 -- Public.LunaBorella - 19 Oct 2017

META FILEATTACHMENT attachment="meanVsExposurefit2.png" attr="" comment="" date="1508424106" name="meanVsExposurefit2.png" path="meanVsExposurefit2.png" size="33597" user="zavc160" version="1"
Line: 36 to 46
META FILEATTACHMENT attachment="SigmaVsExposurefit_-15.png" attr="" comment="" date="1508431993" name="SigmaVsExposurefit_-15.png" path="SigmaVsExposurefit_-15.png" size="28070" user="zavc160" version="1"
META FILEATTACHMENT attachment="001Gaussianerror.png" attr="" comment="" date="1508496876" name="001Gaussianerror.png" path="001Gaussianerror.png" size="31943" user="zavc160" version="2"
META FILEATTACHMENT attachment="001GaussianerrorClose.PNG" attr="" comment="" date="1508496979" name="001GaussianerrorClose.PNG" path="001GaussianerrorClose.PNG" size="24612" user="zavc160" version="1"
META FILEATTACHMENT attachment="Autorange.png" attr="" comment="Histogram of Dark frame with default range" date="1508497853" name="Autorange.png" path="Autorange.png" size="34758" user="zavc984" version="1"
META FILEATTACHMENT attachment="CombEffect.PNG" attr="" comment="Histogram with range automatically chosen, which caused this comb effect." date="1508497885" name="CombEffect.PNG" path="CombEffect.PNG" size="29188" user="zavc984" version="1"
META FILEATTACHMENT attachment="Fitted_Histogram.png" attr="" comment="Fitted histogram with automatic bin sizes and automatic range" date="1508498463" name="Fitted_Histogram.png" path="Fitted Histogram.png" size="33981" user="zavc984" version="1"
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2022 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding RHUL Physics Department TWiki? Send feedback