deschutes | Streaming OLAP Filtering and Aggregation | Stream Processing library
kandi X-RAY | deschutes Summary
kandi X-RAY | deschutes Summary
Implementation of a streaming OLAP aggregation engine. Defines an API for processing streaming datasets, and provides two implementations of streaming aggregators: one built atop lockless collections, and a second build atop collections implemented using lock-striping.
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Top functions reviewed by kandi - BETA
- Observes an event
- Update events
- Returns or create a new map with the given timestamp
- Fetches a rolling rollup from a times slice
- Updates the statistics for a request
- Get the number of bytes in the response
- Returns the handshake duration in seconds
- Returns the number of bytes used in the request
- Get a snapshot of the response bytes history
- Get the latest handshake time history snapshot
- Get the snapshot of the request bytes history
- Get Usec total snapshot of the use count
- Utility method to write data to a file
- Get the total number of bytes in this request
- Deserialize a Snapshot instance
- Gets a snapshot of the use - csec to use
- Gets the request count
- Returns the request string
- Get the total response bytes
- Called when a connection is closed
- Called when a connection is open
- Adds a listener for output events
- Generate iterator over all request events
- Sends an update to all users
- Provides an iterator over the input
- Performs an update
deschutes Key Features
deschutes Examples and Code Snippets
Community Discussions
Trending Discussions on deschutes
QUESTION
I have two large-ish data frames I am trying to append...
In df1, I have state codes, county codes, state names (Alabama, Alaska, etc.), county names, and years from 2010:2020.
In df2, I have county names, state abbreviations (AL, AK), and data for the year 2010 (which I am trying to merge into df1. The issue lies in that without specifying the state name and simply merging df1 and df2, some of the data which I am trying to get into df1 is duplicated due to there being some counties with the same name...hence, I am trying to also join by state to prevent this, but I have state abbreviations, and state names.
Is there any way in which I can make either the state names in df1 abbreviations, or the state names in df2 full names? Please let me know! Thank you for the help.
Edit: dput(df2)
...ANSWER
Answered 2022-Apr-18 at 03:52Here's one way you could turn state abbreviations into state names using R's built in state vectors:
QUESTION
I have preprocessed this a df containing info on US Emergency and Disaster history, to now contain the ```['Place, Disaster_type, Start_date, End_date Disaster_length, Year'] from 1960-2017.
Now, I would like to create 2 new dfs.
- = to the number of times a disaster occurred in each year,
- = to the number times each type of disaster occurred each year.
This is my current attempt at trying to calculate the number of disasters that happened each year and create a new df, but I'm not sure how to have it specifically count the number of disasters pear year.
...ANSWER
Answered 2021-Jul-10 at 21:05You can call size
on groupby
to get the counts.
QUESTION
I am currently trying to calculate the length of disasters, measured in days, and then with this column that is the difference between the start date and end date, use groupby ( I think), in order to sum the length of disasters for each year, as my data set is from 1960 to present. Eventually, I'd like to also group it by disaster type as well to see how the length of particular disasters changed overtime, but one step at a time.
So far I have converted the dates to pd.datetime format, and then used the code below to create the column with the difference of the two dates
...ANSWER
Answered 2021-Jul-07 at 11:36First change the column creation code to:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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No vulnerabilities reported
Install deschutes
You can use deschutes like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the deschutes component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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