everyday | code from the book Exploring Everyday Things with R | Math library
kandi X-RAY | everyday Summary
kandi X-RAY | everyday Summary
This is the public repository for the book from O'Reilly 'Exploring Everyday Things with R and Ruby'. There has been some changes in the chapter numbering since the draft. Please send your feedback to me through sausheong at gmail dot com. Any corrections, comments and compliments welcome! :).
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QUESTION
in fowlloing list are the prices Benzin everyday, i want for each day the difference to the previous day (the first day does not appear in the output)
- at the end of the statement: the number of days on which the price has rised, stayed the same or not avalible.
...
ANSWER
Answered 2021-Jun-14 at 15:28With your shown samples only, please try following.
QUESTION
Simple problem that most likely has a simple solution.
Created a custom menu with 1 function. Now I want to be able to have this custom menu appear in all G sheets. I create a new spreadsheet everyday in Excel and move it to G Drive so that it can be viewed/shared with the whole team. When this new spreadsheet is added to the drive, I want the custom menu to show up so that the one function can be ran to clean up this daily rotating document.
How do I make this custom menu appear in all sheets: new, old, uploaded? I will note this App Script is tide to a
...ANSWER
Answered 2021-Jun-13 at 16:53I'd publish a Workspace addon, as opposed to a "editor" addon. There is a quickstart at:
https://developers.google.com/workspace/add-ons/cats-quickstart
You'll need to make your own modifications, subtractions and additions to the sample code. So, you won't have a custom menu, you'll have your app icon in the sidebar on the right. But it will automatically show up in all Sheets files without doing anything in the Sheet that you open. Getting a custom menu to show up in every Sheet would be a lot of work actually.
QUESTION
Story: in my java code i have a few ScheduledFuture's that i need to run everyday on specific time (15:00 for example), the only available thing that i have is database, my current application and openshift with multiple pods. I can't move this code out of my application and must run it from there.
Problem: ScheduledFuture works on every pod, but i need to run it only once a day. I have a few ideas, but i don't know how to implement them.
Idea #1: Set environment variable to specific pod, then i will be able to check if this variable exists (and its value), read it and run schedule task if required. I know that i have a risk of hovered pods, but that's better not to run scheduled task at all than to run it multiple times.
Idea #2: Determine a leader pod somehow, this seems to be a bad idea in my case since it always have "split-brain" problem.
Idea #3 (a bit offtopic): Create my own synchronization algorithm thru database. To be fair, it's the simplest way to me since i'm a programmer and not SRE. I understand that this is not the best one tho.
Idea #4 (a bit offtopic): Just use quartz schedule library. I personally don't really like that and would prefer one of the first two ideas (if i will able to implement them), but at the moment it seems like my only valid choice.
UPD. May be you have some other suggestions or a warning that i shouldn't ever do that?
...ANSWER
Answered 2021-May-30 at 11:20You can create cron job using openshift https://docs.openshift.com/container-platform/4.7/nodes/jobs/nodes-nodes-jobs.html and have this job trigger some endpoint in you application that will invoke your logic.
QUESTION
im new to python and trying to understand how to send email alerts. I have a csv file, the below is the dataframe for it:
...ANSWER
Answered 2021-Jun-13 at 10:20Since you have a csv file, it is better to read it using pandas
and then check whether all values are numeric in the specific columns, likewise :
QUESTION
I want to create a macro where it will copy some data from one workbook (whose name stays always same - "SameNameWorkbook") and pastes that data in another open workbook whose name is changing everyday (because its name is a date). For example today my workbook which I want to paste the data in is called "11.06.2021". What I did is I created a =today() formula in the J2 cell in the active workbook (different from the other 2 and named "CurrentWorkbook") and created a variable in VBA for the workbook with changing name:
...ANSWER
Answered 2021-Jun-11 at 09:05"Second_workbook.xlsx"
is a string and will be interpreted as a string, ignoring any variables with the same name.
Variables are written out without quotes, and strings of text have the quotes. Everything within quotes (green text) is taken as a string of text. To combine strings and variables we use the &
operand like so:
QUESTION
I'm having connection pool issues on my service (max reached), everywhere that I try to open a connection I wrap it on a using
statement to dispose it correctly, but I think something is not allowing it to work. I think it is because I'm using a method that expects a SqlCommand
as a parameter, this is an example:
ANSWER
Answered 2021-Jun-03 at 19:51I don't really know if this will solve your problem with respect to the connection pool issues, but, expanding on @Jack A's comment to your question, perhaps, a better way to structure your code would be to change your QueryDB
method to take a delegate that updates the SqlCommand
variable with the necessary information and, then, you can make sure both your SqlConnection
and SqlCommand
and taken care of correctly within that method.
QUESTION
I have some tables to load from big query to Postgre cloud sql database. I need to do this everyday and create some stored procedures in cloud sql. What is the best way to load tables from big query to cloud sql everyday? What are the costing implications for transferring the data and keeping cloud sql on 24/7? Appreciate your help.
Thanks, J.
...ANSWER
Answered 2021-Jun-10 at 07:38Usually, a Cloud SQL database is up full time to serve request anytime. It's not a serverless product that can start when a request comes in. You can have a look to the pricing page to calculate the cost (mainly: CPU, Memory and Storage. Size database according to your usage and expected performances)
About the process, we did that in my previous company:
- Use a cloud scheduler to trigger a Cloud Functions
- Create temporary table in BigQuery
- Export BigQuery temporary tables to CSV in Cloud Storage
- Run a Cloud SQL import of the files from GCS in temporary tables
- Run a request in database to merge the imported data to the existing one, and to delete the table of imported data
If it takes too much time to perform that in only one functions, you can use Cloud Run (60 minutes of time out), or a dispatch functions. This functions is called by the Cloud Scheduler and will publish a message in PubSUb for each table to process. On PubSub, you can plug a Cloud Functions (or a Cloud Run) that will perform the previous process only on the table mentioned in the message. Like that, you process concurrently all the tables and not sequentially.
About cost you will pay
- BigQuery query (volume of data that you process to create temporary tables)
- BigQuery storage (very low, you can create temporary table that expire (automatically deleted) after 1h)
- Cloud Storage storage (very low, you can set a lifecycle on the file, to delete them after few days)
- File transfer: free if you stay in the same region.
- Export and import: free
In summary, only the BigQuery query and the Cloud SQL instance are major costs.
QUESTION
Building on Count number of elements with same tag
I will be running this query with BaseX 9.5.2.
Given the data
...ANSWER
Answered 2021-Jun-08 at 19:56Due to the grouping you already have, count($elems)
will have the right value in the return
clause.
I think you original use of the let $sep
is causing problems, the grouping count($elems)
I suggested works fine for me at https://xqueryfiddle.liberty-development.net/bFDbxm7 where I have moved the $sep
to a declared variable.
QUESTION
Building upon books.xml transform to CSV: repeat title on each row:
For the document below, how can I count
- the number of authors per book
- the number of unique authors per book?
In this case, they would both be the same:
...ANSWER
Answered 2021-Jun-08 at 18:14I am using BaseX v.9.5.2
XQuery
QUESTION
I am trying to design a file watcher solution in which I need to watch a particular folder for different file names everyday, once the file name is found, I need to call a script specific to the file name.
Example:
...ANSWER
Answered 2021-Jun-07 at 20:56If you want to do glob expansions in the match, you can do that with a case statement:
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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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