Binomial Coefficient
Complement: You can either choose a team of k members from a group of n people, or you choose all the n-k people from the group, that are NOT in […]
Math
Visualization
Grafana
You can install grafana on bare metal or you use their docker image. Either way, if you want to use it with Clickhouse, you must download the according connector plugin.
Big Data Tools
Clickhouse
On Ubuntu 18.04 you can query and it will output some info, like main pid, where is the server.log etc. How to pipe commands from file to clickhouse-client? Where is
Probability and Statistics
Stars and Bars Argument (Einstein-Bose) or placing n identical objects into n distinct bins, or drawing k times from n balls with replacement, order does not matter
https://brilliant.org/wiki/integer-equations-star-and-bars/ https://brilliant.org/wiki/identical-objects-into-distinct-bins/ So, the total number of objects consists of the number of balls or start or else plus the number of bins -1 (which is the number of bars
Python
Python Snippets
How to shift time in timedate index in pandas dataframe: How to sample n times from an object (e.g.) an array without replacement?
Big Data Tools
Clickhouse and Kafka
After installation of clickhouse and kafka and creation of a topic called ‘test’ and sending ipfix data to this topic we are now ready to store this data permanently in