Greetings !I've been trying out DLT for a few days but I'm running into an unexpected issue when trying to use Koalas dropna in my pipeline.My goal is to drop all columns that contain only null/na values before writing it.Current code is this : @dlt...
I wrote a review of Koalas by porting an existing pandas program. Comments welcome.https://medium.com/@chuck.connell.3/pandas-on-databricks-via-koalas-a-review-9876b0a92541
Koalas lets you run your scikit-learn code, which typically runs on one node, to a cluster of multiple nodes, and all you need to do is to change the python import from scikit-learn to Koalas, and you will have an ML code that runs on multiple nodes ...
Different projects have different focuses. Spark is already deployed in virtually every organization, and often is the primary interface to the massive amount of data stored in data lakes. Koalas was inspired by Dask, and aims to make the transition ...
I have single threaded Pandas code that is both not yet supported by Koalas nor easy to reimplement in PySpark. I would like to distribute this workload using Spark without rewriting all my Pandas code - is this possible?
This is for a specific scenario where the code is not yet supported by Koalas. One approach to consider is using a Pandas UDF, and splitting up the work in a way that allows your processing to move forward. This notebook is a great example of taking ...
Hi I am planning to run Koalas on Databricks environment, What are the requirements for running Koalas there
Koalas is great! This really helps ease the transition from Pandas to Spark, because you can just use the same Pandas functions/classes through the Koalas API but everything runs in the background in Spark.
Can I read a Delta table directly using Koalas or do I need to read using Spark and then convert the Spark dataframe to a Koalas dataframe?
Yes, you can use the "read_delta" function. Documentation.
Pandas works for single machine computations, so any pandas code you write on Databricks will run on the driver of the cluster. Pyspark and Koalas are both distributed frameworks for when you have large datasets. You can use Pyspark and Koalas inte...
