Matthias

Matthias has asked 52 questions and find answers to 15 problems.

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About

Instrumental in successful development of GUI components for client-server multi-user systems. Deployed advanced technologies such as UML, Microsoft .NET, OpenGL/DirectX and Microsoft SQL Server.

Matthias questions

crop image from YV12 or NV12 byte array
SQL running total group by id and limited by a condition (over window)
is Dataframe.toPandas always on driver node or on worker nodes?
Eclipse: Some or all projects can not be imported because they already exist in the workspace
Android: animate circular progress drawable
PySpark: calculate mean, standard deviation and those values around the mean in one step
Google PubSub and auto-scaling Compute Engine instances (Python)
from deprecated Blobstore File API to serving blobs
how to do a nested for-each loop with PySpark
Create ImageView programmatically without Layout

Matthias answers

Sorting with OrderBy, ThenBy
Python- Selecting pairs of objects from a data frame
android spinner adapter OnItemSelectedListener what is Row Id
PySpark: calculate mean, standard deviation and those values around the mean in one step
How to create circular Slider WPF [closed]
Change cursor when dragging in WPF
How to replace words in a string using a dictionary mapping
Android autoupdate from own server
Storing API keys and secrets in Google AppScript user property
Pandas to_datetime loses timezone