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QUESTION
So I was really ripping my hair out why two different sessions of R with the same data were producing wildly different times to complete the same task.
After a lot of restarting R, cleaning out all my variables, and really running a clean R, I found the issue: the new data structure provided by vroom
and readr
is, for some reason, super sluggish on my script. Of course the easiest thing to solve this is to convert your data into a tibble as soon as you load it in. Or is there some other explanation, like poor coding praxis in my functions that can explain the sluggish behavior? Or, is this a bug with recent updates of these packages? If so and if someone is more experienced with reporting bugs to tidyverse, then here is a repex
showing the behavior cause I feel that this is out of my ballpark.
ANSWER
Answered 2021-Jun-15 at 14:37This is the issue I had in mind. These problems have been known to happen with vroom, rather than with the spec_tbl_df
class, which does not really do much.
vroom
does all sorts of things to try and speed reading up; AFAIK mostly by lazy reading. That's how you get all those different components when comparing the two datasets.
With vroom:
QUESTION
I'm new to working with FHIR and need help with parsing a FHIR-Bundle (xml) in C#. I'm able to get the URL of the patient- or organization-resource from the composition-resource in the bundle, but need to store the values of the resources (e.g. name of patient) into variables to work with them, e.g. store them to an SQL database. Can you help me please? Thx in advance!
...ANSWER
Answered 2021-Jun-03 at 15:23You could do the following:
QUESTION
I am new to web scraping. I am trying to extract the address text "Tegelhof 1 33014 Bad Driburg" and " Tegelweg 2A 33014 Bad Driburg" from the below html code which is in br tags. But I don't get the desired results. I have used below code so far to get but there is no success. Can someone help me how to
code:
...ANSWER
Answered 2021-Mar-01 at 14:42html_doc="""
Praxis jetzt geöffnet
Telefon: 0 52 53 / 17 17
0.2 km
Tegelhof 1
33014 Bad Driburg
Praxis jetzt geöffnet
Telefon: 0 52 53 / 65 65
0.2 km
Tegelweg 2A
33014 Bad Driburg
"""
from bs4 import BeautifulSoup
soup = BeautifulSoup(html_doc, 'html.parser')
address = soup.find_all('div', class_='col-sm-4 pt-2')
[i.text for i in address]
QUESTION
I am trying to extract address from the below html source in "br" at the end, but I am unable to extract and dont know what to give as the attributes. I am using below code to extract the address but it doesn't work as expected. Any help is much appreciated.
Edit: I have copied the missing parts of the code in the below.
Full Source code:
...ANSWER
Answered 2021-Feb-24 at 22:39The html you posted is broken. You have html tags inside incomplete comments. Everything after
0.3 km
Am Rathausplatz 4
33014 Bad Driburg
"""
soup = BeautifulSoup(html, 'lxml') # if you use html.parser the code below will be different
# find element first, then get text element next to it
addressLine1 = str(soup.find('img', class_='').findNextSibling(text=True).findNextSibling(text=True).findNextSibling(text=True)).strip()
# Am Rathausplatz 4
addressLine2 = str(soup.find('img', class_='').findNextSibling(text=True).findNextSibling(text=True).findNextSibling(text=True).findNextSibling(text=True)).strip()
# 33014 Bad Driburg
print(addressLine1)
print(addressLine2)
QUESTION
I tried to extract telephone number from the below "p class" html source, I am able to extract entire chunck of text with duplicates. Can someone help how to extract just telephone number without duplicates Any help is much appreciated.
Code:
...ANSWER
Answered 2021-Feb-24 at 18:01I don't see why there would be a duplicate as there is only one instance of the href tag with a class of "it" in your example source. I'm unclear if you're trying to extract the "0 52 53 / 65 65" or the "tel:+4952536565" but in both cases you could do:
QUESTION
I have quite a big excel that contains orders information. My goal is to find in the "customer name column" (H:H) the orders that are for commercial addresses based on key words and then copy the rows, where the values are found, to a new sheet.
Got a list of key words but since I do not know how to make use of it in VBA, I just have a code that will repeat the search based on each word as long as I copy paste the code and write a new value/word to be searched for. Once a key word is identified, the whole row will be copied in sheet 3. Sheet 1 contains the raw data and sheet 2 contains the list of words for each I do not know how to run a code that will include them in the search without me writing them 1 by 1 each time.
...ANSWER
Answered 2021-Feb-13 at 14:59Build a regular expression pattern from the list of search words. I have assumed these are in column A on sheet 2 starting at row 1.
QUESTION
I'm a beginner and need advice. I learn Reactjs and created this HOC so I could navigate in the Router V6. My concern is that from my desktop Navbar
and from the mobile side menu I have links to the same Dashboard
.
So I create a HOC since it's the same code running in both locations and the HOC now have this code.
This is the HOC:
...ANSWER
Answered 2020-Dec-23 at 09:11It's totally dependent on the requirement and how you design. My opinion is that if you using function components you don't need to mix with class components and bind(this).
Note: WithDashboard function you are not passing props if any component passes props that are not passed to WithDashboardBase.
QUESTION
I have a String with Tags like this
...ANSWER
Answered 2020-Nov-11 at 20:04You could use the following regex (?<=\[\[)([\w\s]+)(?=]])|(\w+)
which is of the way firstWay|secondWay
, the |
is an OR
(?<=\[\[)([\w\s]+)(?=]])
which means([\w\s]+)
: characters or spaces, so can be a list of words(?<=\[\[)
ensure that is prefixed by 2 oppening square brackets(?=]])
ensure that is prefixed by 2 closing square brackets
(\w+)
is just a word
Giving
QUESTION
I would like to know what is more recommended when one DB instance should be shared across different AWS regions? Is it better to use cross-Region Read Replicas or to use Read Replica in region of origin + AWS Global Accelerator?
Is there some "best praxis solution" for global applications?
I am not experienced with AWS and the most of the things are pretty new for me. So I know that my question may look amateur.
From what I read, I think that one centralized Read replica is better solution, due to latency between regions, but if that would be a case, why anyone would use cross-region replicas at all?
...ANSWER
Answered 2020-Aug-31 at 14:24If your application is hosted in a region e.g. eu-west-1
the best read performance will always come when it is reading data from eu-west-1
.
If you happen to have customers in us-east-1
you have to choose between one of 3 options:
Edge Location
You reduce the latency using edge locations, i.e. CloudFront or Global Accelerator. This will improve the latency by using the AWS Backbone to route to your origins. This is faster than previously but the application remains in the original region (in this case eu-west-1
). You also maintain one copy of the application only.
Latency based routing
This option brings the application closer to the user, by using either Route 53 with latency based records or Global Accelerator you can have your domains resolve to the location that has the lowest latency for them. You would have your central region (where the readwrite lives) and then create cross region replicas. This will provide the best read performance as the reads are being done locally (rather than being across region).
In the example eu-west-1
is the primary region with cross region replicas in us-east-1
. Latency between regions is only observed with the time it takes to write to the readwrite (in the original region unless you use Aurora Read Replica Write Forwarding). This is by far the most complex and costly, but will provide the best performance overall.
Do nothing
If you do nothing this option will use the public internet to route to a host, those who are further away to your application will have a longer latency, but this is the cheapest option.
Summary
You need to essentially decide on the importance of cross region, if it is simply because your user base is in a further away region then ensuring you're as close to them as possible is key. You would not need to think about replicas if you're in a specific geographical region.
Remember you can always enhance your infrastructure when demand increases from other geographical regions.
QUESTION
I have two datasets and named E and eF respectively.
...ANSWER
Answered 2020-Aug-30 at 22:28Using your exact filter criteria would this do it?
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