The official Widgets Development Guide only contains the most basic widget types as example.

There is no functional example for a Flot chart in there right now. Or is it?

Since this is one of the most useful and probably used (at leat to me) widgets it would be very helpful to extend that docum

Hello,
I suspect that the wiki for the closeness centrality is wrong: it says that the closeness centrality is calculated as "The average distance from a given node to all other nodes in the network.", while in the reported wikipedia page it is defined as the inverse of that. The defi

Hi again,
a second issue I ran into is related to the userguide:
The example for Grouping on calculated columns regarding binning doesn't compile in v0.37.3 and apart from that doesn't lead to a reasonable result, as far as I see.

• Compilation isn't possible, as bin() returns a DoubleColumn (even if c

But as we are currently targeting JDK 8, and a new API arrived in JDK 9, it does not make sense to do this yet. The next long-term Java version 11 is scheduled for end of September 2018.
So for ELKI 0.8 it is an option to target JDK 11, and use the new API then.

Summary and Descriptive Statistics

The first operation to perform after importing data is to get some sense of what it looks like. For numerical columns, knowing the descriptive summary statistics can help a lot in understanding the distribution of your data. The transformer "describe" returns a DataFrame containing information such as number of non-null entries (count), mean, standard deviati

Some suggestions to placeholders:

• A placeholder to show Player Caused Deaths
• A placeholder to show Mob K/D
• A placeholder to show Mob Caused Deaths
• A placeholder to show recent player kills (ex: player_recent_kill_<1-10>)
• A placeholder to show recent deaths (ex: player_recent_death_<1-10>)

A list of all available placeholders on the github wiki.

The Filter classes currently extend DataSource and filters other DataSources. Instead, filters should filter one-dimensional data and there should be a FilteredDataSource which acts as a bridge between filters and data sources.

The moons.json file may contain the wrong configuration settings for the moons of Jupiter.
They should look like this:
http://www.skyandtelescope.com/wp-content/observing-tools/jupiter_moons/jupiter.html#

Other moons may also need checking.

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