bmg | Bmg , Alf 's successor , A Ruby Relational Algebra | SQL Database library
kandi X-RAY | bmg Summary
kandi X-RAY | bmg Summary
Bmg is a relational algebra implemented as a ruby library. It implements the Relation as First-Class Citizen paradigm contributed with Alf a few years ago. Bmg can be used to query relations in memory, from various files, SQL databases, and any data source that can be seen as serving relations. Cross data-sources joins are supported, as with Alf. For differences with Alf, see a section further down this README.
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Top functions reviewed by kandi - BETA
- Transforms a value with a given value .
- Transforms a tuple with values
- Creates a new filter .
- Computes an array of arrays with the given values
- Returns a table for this table .
- Adds a Specification to this table .
- Renders a select clause .
- Returns an array of all available libraries that can be found
- Returns an array of all the types for all the types
- Compares the intersection between two arrays .
bmg Key Features
bmg Examples and Code Snippets
Community Discussions
Trending Discussions on bmg
QUESTION
I am having a hard time reading a XML file in to a List(Of Object) in vb.net Any help would be appreciated.
The problem occurs when the deserialization happens. I get the following error
System.InvalidOperationException: 'There is an error in XML document (2, 2).'
Inner Exception InvalidOperationException: was not expected.
XML
...ANSWER
Answered 2021-Feb-18 at 22:42I worked on the assumption that you cannot change any part of the Xml structure, and would prefer to change your own VB.Net code
I renamed your class CRecord
to CD
as it better represents what you are loading, and the XmlDeserialization process will match the Xml name to the Class name.
Also, I added the attribute to each of the properties as the Xml Element name is all upper case and the VB.Net property is not. You can choose not to add this attribute, but then you will need to change the property names to be all upper case to match the Xml.
The final bit of code needed was telling the XmlSerializer class what to use for the root node:
New XmlRootAttribute("CRecord")
QUESTION
So my example is, I'm writing a Discord bot so that when I type a command in chat it will return the corresponding value.
Now I'm starting off with ammo for this game, the problem being there is a fair few different types of ammo in the game. Since I am new to coding and Python I wanted to get into the habit of separating them into different .py
files so my codes isn't all messed and i can jump between them easily and keep track of everything down the line.
In my main file there isn't anything but import shotgun_1, shotgun_2
.
What I noticed, though, is that only shotgun_1
commands will be recognized; shotgun_2
doesn't work.
If I remove shotgun_1
and have only import shotgun_2
then the shotgun_2
code will work and send in the chat "HI!". If i remove shotgun_2
and only use shotgun_1
then the commands of shotgun_1
work.
Is there a way to somehow link these two files so they execute the same time?
shotgun_1.py ...ANSWER
Answered 2021-Feb-14 at 02:13I would suggest not separating these two aspects into different files. shotgun_2.py
does not contain any code that could not be put into shotgun_1.py
. This is also why shotgun_2.py
doesn't do anything when shotgun_1.py
runs. Your current method imports shotgun_2.py
, but it doesn't do anything after it imports. I cut out large chunks of code, but here are my edits:
QUESTION
I am new to xml and xslt . U have the following XML file
...ANSWER
Answered 2021-Jan-13 at 17:44artist
is an element, not an attribute. And it is a child of cd
, not of price
. Therefore change your:
QUESTION
i need some help with add information to table in xsl inside for-each loop.
i want to add Link to Wikipedia for every row in table, link for each album, but im in "for-each" loop.
look for my question in section code in "a href...." tag.
for now all the links is to "Empire Burlesque".
i think its very simple, but how i do this? Thank you very much for your help
XML Code:
...ANSWER
Answered 2020-Dec-22 at 12:07Not sure if I understood correctly but I think this may work:
QUESTION
i need some help with sum function in xsl.
first of all i split to 3 tables for 3 countrys i have in XML.
now i add a row in each table and for each table i need use "sum function" and calculate the sum of all prices, here is my code for now, what im doing wrong? I would be happy for help from you, thx.
XML:
...ANSWER
Answered 2020-Dec-20 at 13:07If you want to sum the Price
of the current group, you need to use the key to select the group:
QUESTION
I have two dataframes: bmg and etext.
...ANSWER
Answered 2020-Oct-29 at 14:32You could try just merging the dataframes and removing the lines that don't match your rule:
QUESTION
To improve the recomender system for Buyer Material Groups, our company is willing to train a model using customer historial spend data. The model should be trained on historical "Short text descriptions" to predict the appropriate BMG. The dataset has more that 500.000 rows and the text descriptions are multilingual (up to 40 characters).
1.Question: can i use supervised learning if i consider the fact that the descriptions are in multiple languages? If Yes, are classic approaches like multinomial naive bayes or SVM suitable?
2.Question: if i want to improve the first model in case it is not performing well, and use unsupervised multilingual emdedding to build a classifier. how can i train this classifier on the numerical labels later?
if you have other ideas or approaches please feel free :). (It is a matter of a simple text classification problem)
...ANSWER
Answered 2020-May-07 at 08:13Can I use supervised learning if i consider the fact that the descriptions are in multiple languages?
Yes, this is not a problem except it makes your data more sparse. If you actually only have 40 characters (is that not 40 words?) per item, you may not have enough data. Also the main challenge for supervised learning will be whether you have labels for the data.
If Yes, are classic approaches like multinomial naive bayes or SVM suitable?
They will work as well as they always have, though these days building a vector representation is probably a better choice.
If i want to improve the first model in case it is not performing well, and use unsupervised multilingual emdedding to build a classifier. how can i train this classifier on the numerical labels later?
Assuming the numerical labels are labels on the original data, you can add them as tokens like LABEL001 and the model can learn representations of them if you want to make an unsupervised recommender.
Honestly these days I wouldn't start with Naive Bayes or classical models, I'd go straight to word vectors as a first test for clustering. Using fasttext or word2vec is pretty straightforward. The main problem is that if you really only have 40 characters per item, that just might not be enough data to cluster usefully.
QUESTION
I am trying to get heart points from google fit REST API. I see that heart rate data in google fit app (110 bmg) but i am getting empty data through the API.
API: https://www.googleapis.com/fitness/v1/users/me/dataset:aggregate
BODY:
...ANSWER
Answered 2020-Feb-04 at 15:39Never mind, I got it. It took some time to update the API i guess, I had to update the body:
QUESTION
I am trying to run a script file which contains creation of temp table, load the data, creation of test table, merge the data and delete the table in BigQuery. Intial 3 commands is working fine but MERGE command is not working.
...ANSWER
Answered 2019-Dec-20 at 11:28The issue here is that you are trying to run the query as a bash command. You should replace the query in your bash script with the following command:
QUESTION
I need a help with a function that returns array with matched objects based on user input.
We enter value and search only inside this keys 1. title.label 2. ['im:artist'].label
ES6 solution highly appriciated :-)
Thanks in advance.
...ANSWER
Answered 2019-Dec-10 at 10:13you can try this approach, here I'm using the arrow function. You have to make http request and fetch your data then apply this filter function.
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Install bmg
On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.
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