ceres | Distributable time-series database | Time Series Database library
kandi X-RAY | ceres Summary
kandi X-RAY | ceres Summary
Ceres is a time-series database format intended to replace Whisper as the default storage format for Graphite. In contrast with Whisper, Ceres is not a fixed-size database and is designed to better support sparse data of arbitrary fixed-size resolutions. This allows Graphite to distribute individual time-series across multiple servers or mounts. Expected features such as roll-up aggregation and data expiration are not provided by Ceres itself, but instead are implemented as maintenance plugins in Carbon.
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Top functions reviewed by kandi - BETA
- Read data from the aggregated time series
- Aggregate the given datapoints
- Read the metadata from the metadata file
- Aggregate the values of a series
- Called when a node is found
- Writes the given metadata to the file
- Delete the slice before t
- Merge the given list of slices
- Create a node
- Create a node
- Return the path to the given node
- Return a generator that yields Ceres objects
- Returns a list of slice information
- Create a ceres tree from a given filesystem path
- Return the node path
- Helper function for os walk
- Returns True if path is a node directory
- Checks if the given node exists
ceres Key Features
ceres Examples and Code Snippets
Community Discussions
Trending Discussions on ceres
QUESTION
I've read similar solved questions on this website but they do to help me! So, I'm sorry to make a similar question.
I've the following .txt file named "Asteroids_Numbered.txt" (the file has lots of rows, i.e. 607013, but I put a lot less for simplicity):
...ANSWER
Answered 2022-Jan-13 at 15:54To expand on @HighPerformanceMark's comments, the best thing to do is to define an Asteroid
type which holds all of the information about an asteroid, and then to create an array of Asteroid
s.
Asteroid
type
The Asteroid
type should initially just contain the data about an asteroid,
QUESTION
I am attempting to print values from an API via JSON response. I was successful when I tried to print the first and foremost "live" value of the response, but I started running into problems when I tried printing anything other than the "live" value. Below is a sample of what I usually receive from the API, and my goal here is to print out only every visible "name" values.
...ANSWER
Answered 2021-Sep-14 at 06:06I think you're new to programming language so following is the special note for the new programmer.
You did well in printing the data but this is not end because your goal is to get the
name
so you need to traverse in the response one by one let me show you
QUESTION
In R, I have a character vector v
, whose values are all elements of colnames(rain)
for a dataframe rain
. I want to use v
to create a new vector chosen
whose values satisfy chosen[i] == rain[i, v[i]]
without resorting to a loop and preferably using a tidyverse
approach.
For example, if I have:
...ANSWER
Answered 2021-Aug-09 at 14:42Do you mean something like this?
QUESTION
I am using the Eigen matrix library to deal with matrices of std::complex
data types, where T
is either of type double
or of type ceres::Jet
. Eigen documentation indicates that <<
is the correct operator to use for assignment, but it seems that <<
is not overloaded for matrices of user-defined data types. Is there a different method I can use to initialize Eigen matrices that works for both data types?
ANSWER
Answered 2021-Jul-16 at 04:58The problem with your code is not that Eigen is not overloaded for matrices of user-defined type (it is) but that you have a nested template argument of the type Eigen::Matrix, Eigen::Dynamic, Eigen::Dynamic>
(where T
is something like ceres::Jet
resulting in Eigen::Matrix>, Eigen::Dynamic, Eigen::Dynamic>
). You will have to explicitly construct the elements of the nested type T
before using the streaming operator <<
.
QUESTION
I would like to find the following transfer function using nonlinear least square:
...ANSWER
Answered 2021-Jun-27 at 18:42There is a curve fitting example in the ceres tutorial, have a look at that.
QUESTION
For a bash script that involves issuing a dconf command as user ceres via ADB shell, i need to nest multiple commands. Manual sequential execution of following three commands works flawless.
...ANSWER
Answered 2021-Jun-04 at 19:34For extremely nested cases I'd stick to printf %q
instead of doing the quoting manually:
QUESTION
Ceres solver states everywhere that it can
[...] solve robustified bounds constrained non-linear least squares problems
and that it supports upper and lower bounds constraints on the parameter blocks (for example in http://ceres-solver.org/modeling_faqs.html it states Ceres Solver only supports upper and lower bounds constraints on the parameter blocks
), but somehow I can't find anywhere in the documentation how I can set these upper and lower bounds.
So, how do I set upper and lower bounds for parameter blocks in ceres solver?
Specifically, how do I do that in an AutoDiffCostFunction
? If I use if
statements to return a very big residual out of bounds, then that function isn't differentiable.
For example, this is the ceres Hello World:
...ANSWER
Answered 2021-Jun-04 at 12:31You can use methods setParameterLowerBound
and setParameterUpperBound
as defined here:
http://ceres-solver.org/nnls_modeling.html?highlight=setparameterlowerbound#_CPPv4N5ceres7Problem22SetParameterLowerBoundEPdid
In your case, I guess something like this:
QUESTION
I am trying to install opencv-python on the Mac m1.
I have followed the instructions here:
https://sayak.dev/install-opencv-m1/
However I am getting an error in a c++ library when running the make -j8 command:
...ANSWER
Answered 2021-May-13 at 10:10I think the error was in the CMakeLists.txt in the opencv repo.
I had to edit this file and set(CMAKE_CXX_STANDARD 14) to get it to work
QUESTION
I would like to set a default maximum size of images in the djangocms-picture plugin. I would like to do this at template level.
This simple template for example:
...ANSWER
Answered 2021-Apr-13 at 19:28I have solved this one.
Important points- Set the right plugin context: http://docs.django-cms.org/en/latest/how_to/custom_plugins.html?highlight=width#plugin-context
- Be sure the image uses “automatic scaling”.
- Do not use the
tumbnails
plugin directly.
QUESTION
As the title suggests, I have some trouble with the titles of my betting command. Sometimes it doesn't show up, while at other times it shows up as something with a lot of 1's and 0's. I think it might be binary, but I don't know. Code: https://replit.com/@jsun3/Betting-cmd#main.py
Stacks was being annoying on formatting so I did it in replit.
Ceres' answer helped, but caused another error. When I won sometimes it counted -10 won(meaning i lost 10). IMG:
New update for code: https://replit.com/@jsun3/Betting-cmd#main.py
...ANSWER
Answered 2021-Apr-05 at 04:04The problem is that amount
is a string, and in python you can multiply a string to repeat it. That is exactly what is happening.
Solve it with
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
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Install ceres
You can use ceres like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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