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Changelog

0.8.3 (July 2019)

  • Minor release. Updated tutorials and fixed some bugs.

0.8.2 (July 2019)

  • Added Striplog.shift() to allow you to shift all the tops and bases by some delta or by setting a new start.
  • Added striplog.markov.Markov_chain(). See the Markov_chain.ipynb notebook in tutorial to see how to use it. This is an experimental module. There might be an elegant way to add the Markov chain as an attribute/methods on Striplog objects, but I couldn't think of it.
  • Fixed a bug in Striplog.hist() which produced the wrong colours and labels for the bars.

0.8.1 (June 2019)

  • Added append, extend and pop methods to Striplog objects.
  • Breaking change: Changed the name of Striplog.__insert() to Striplog.insert() to match append(), extend() and pop().
  • Added binary morphology filters to Striplog object. These offer another way to filter intervals, and thus to simplify a binary striplog (one in which an attribute of the components contains only a single binary 'flag'). Operations include dilation, erosion, opening, and closing.
  • Fixed a bug in plot: it assumed the first interval in a striplog was the 'shallowest' and the last the deepest. But if intervals can overlap (which they can), then this is not a safe assumption. Now uses Striplog.start and Striplog.stop to decide.
  • Added mode keyword arg to anneal, allowing user to choose whether the gaps in the log are filled in by flooding upwards (that is, extend the interval below the gap upwards), flooding downwards (extend the upper interval), or flooding symmetrically into the middle from both above and below, meeting in the middle. (Note, you can also fill gaps with another component, using the fill() method.)
  • Added merge method to the Striplog. This allows you to merge overlapping intervals by precedence (rather than by blending the contents of the intervals). For example, you can choose to keep the thickest interval in all overlaps. If intervals have a date, you could keep the latest interval.
  • Added net_to_gross method to Striplog object. Give it a binary attribute and it will compute the ratio of intervals having that attribute as True to the total thickness.
  • Added a couple of notebooks to /tutorial.
  • Fixed a bug that allowed lists of intervals used to instantiate striplogs to be mutated.

0.8.0 (March 2019)

  • New point release because of breaking changes.
  • Breaking change: Striplog.prune() and Striplog.anneal() now return copies, so you can chain them.
  • Striplog.bar() makes a bar chart of the intervals, with optional sorting by thickness or any other key.
  • Breaking change: Striplog.hist() (which histogram() now calls) now makes a plot as well and returns the bars (or the axis, if you pass one in).
  • Striplog.merge_neighbours() performs a stepwise Interval.union() on all pairs of intervals, combining neighbours that have identical components. It is intended to be used after Striplog.anneal().

0.7.0 to 0.7.3

  • Improved test coverage.
  • Improved CSV writing.
  • Canstrat legend and ASCII file writing.
  • Striplog quality method.

0.6.0 to 0.6.1

  • Introduced Position object for expressing depths of intervals.
  • Custom string formatting for using with format().
  • Lots of new built-in legends.
  • Random legends for when you're in a hurry.
  • Lots more superpowers for intervals, including intersect, merge and union.
  • Hatching in decors.
  • HTML repr for legends and intervals.

0.5.0 to 0.5.6

  • Rocks are now Components.
  • Python 3 support.
  • Many bug fixes.
  • Test coverage.
  • Continuous integration.
  • Updated documentation.
  • Histograms (buggy).
  • Plot tests working.

0.4.7 and earlier

  • First releases for client.
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