lamar | Fast Inversion of Control Tool and Successor to StructureMap
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QUESTION
Let's say that we have 3 tables which are videogames, developers, workson.
Under the videogames table, we have attributes such as
- videogameid (PK)
- title
- year
- genre
Then for developers we have
- developerid (PK)
- name
- gender
Then for the workson table
- videogameid(PK & FK )
- developerid (PK & FK )
My attempt at the code:
...ANSWER
Answered 2022-Mar-03 at 19:14Which columns/aggregate function(MAX,COUNT,AVG etc.) you select in the select query will be shown as a table. In your query:
QUESTION
Oracle 11g
How can I get ALL pet_owners of FURRRY
and SCALY
and only earthworms
and slugs
?
ANSWER
Answered 2022-Feb-23 at 20:50You want either of the two conditions to be met, so you need OR:
QUESTION
I'm trying to use Last.fm's API to find similar songs given a song name. Last.fm has a feature that can do this called track.getSimilar, but both "track" and "artist" are required parameters. However, because of the way this works, I can't figure out a way to either a) get both a song name, and the artist from one search bar input, or b) get the song's artist using track.search. Here's the part of my code relating to this:
...ANSWER
Answered 2022-Feb-19 at 03:35I think your issue may be lack of URL encoding. The reason I think this is because your artist string has a space in it which would need to be encoded to kendrick%20lamar
to be processed properly.
Encoding is mentioned on the API's introduction page. UTF-8 is common, so you can use a function like encodeURI()
to achieve this (MDN Web Docs).
One way to test this theory would be to use the values from the example URL in the track.getSimilar docs which is artist cher
and track believe
. These values conveniently don't have spaces or special characters that need escaping. By knowing the expected response it's also a good functional baseline to ensure the rest of your code is functioning as intended.
It's also a good song, make sure to give it a listen :)
QUESTION
The link above is a json file of an album and it has a URL of the album cover under the image section, but when I try extracting it, I get a syntax error telling me "Uncaught SyntaxError: Private field '#text' must be declared in an enclosing class".
For the code below, to get the large image, I would expect to do data.album.image[2].#text, but whenever I do this, I get an error telling me this: "Uncaught SyntaxError: Private field '#text' must be declared in an enclosing class" (screenshot here: https://gyazo.com/f6c9a16af02bda42313b4f369a753c33). Is this because of the number symbol? Because when I do data.album.image[2].size, I get an expected output of large. If so, how can I work around it?
...ANSWER
Answered 2022-Jan-09 at 21:49You cannot access the #text
property directly with the dot notation because it is a private field. You must use the bracket notation.
Replace the last line of your code with
QUESTION
I have a list of names 'pattern' that I wish to match with strings in column 'url_text'. If there is a match i.e. True
the name should be printed in a new column 'pol_names_block' and if False
leave the row empty.
ANSWER
Answered 2022-Jan-04 at 13:36From this toy Dataframe :
QUESTION
I am currently working on a pandas dataframe and trying to extract the value from the column that consists of a string within a list, but I am kinda stuck on how to only keep the text I want.
This is how one of list looks like:
...ANSWER
Answered 2021-Nov-25 at 08:02I want to count the number of time that True and False shows up in each restaurant attribute
You can concatenate all elements of you list and search for the '\bTrue\b'
/'\bFalse\b'
patterns (\b
denotes word boundaries):
QUESTION
I am trying to scrape the site https://www.pro-football-reference.com/years/2021/rushing.htm#, and I am trying to sort by the column Y/A
.
ANSWER
Answered 2021-Nov-07 at 15:30You could target the table by id, then exclude rows where there are tds
having a class of non_qual
. I would use the html from these rows, wrapped with table
tags, to reconstitute the table with pandas. Finally, sort and tidy the table.
Given there appear to be some ties, within Y/A
, it looks like there is a secondary sort on Att
desc e.g. page output the following order for Y/A 4.5 (current 2021-11-07)
QUESTION
I have a dataset that contains several columns, as shown below:
I want to transform the data into a longer format with the names: Trade Value, Position, Player Name, and Trend Value
Here's what I tried.... But the code tries to combine the Trend and Player Name columns. How to have specify that those should be two separate columns represented by the same Position?
...ANSWER
Answered 2021-Aug-08 at 16:57As per suggestion by dear Mr. Chris Ruehlemann here is a slightly leaner version of this solution:
QUESTION
I want to run a sim that randomly picks rows and adds up the total value of the rows based on a set of rules. I'm new to simulations so don't know where to start.
Rules: 9 total rows picked per sim. Each sim of 9 must include the following number of "positions":
QB: 1
RB: 2
WR: 3
TE: 1
K: 1
DST: 1
I want each sim to add up the value of the group (WAR column) and the output to show percentage each player made say the top 10 percent of groups with the highest WAR. Hopefully this makes some sense. The ultimate goal here is to ID which players were most likely to be successful.
Here is a dput of ten top players from each positions as example.
dput ...ANSWER
Answered 2021-Jul-23 at 20:11One idea is you could use a lookup table to set the number of samples per group, then create a function to run a "simulation" by sampling n_samples
from each group. Not exactly sure what you are after with the sum of WAR
, but once you have the simulations manipulation like grouped sums should be straightforward.
Note there are no "DST" positions in your sample data so each simulation only comes out with 8.
QUESTION
ANSWER
Answered 2021-May-25 at 14:15Is that is the case use str
to call the dict
key
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