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QUESTION
The program will take one argument, corresponding to one of the relations' keys. The program will print out the statement:
John, I am your x
Where x = the relationship.
For example, if the argument is "Lisa", it should print "John, I am your sister"
If the key is "Smith" you should instead print "No, I am your father"
Here is my code:
...ANSWER
Answered 2022-Feb-01 at 15:01you did not import sys
module, and you also need to specify the argument for the function Relation
.
QUESTION
I have a table of mostly categorical values and want to only keep rows that have the most common values in a particular column. I'm trying to use slice_max() but it's not working as I expect. I did see older suggestions for how to do this in base R or using the deprecated top_n(), but the top_n() documentation says to use slice_max instead and I can't find much detail about how slice_max works.
I'll use the starwars dataset as my example. The two most common homeworlds are Naboo, with 11 occurrences, and Tatooine, with 10. So I want the code to say "show me all the rows with the two most common homeworlds", and I expect that to give me a 21 row tibble where the homeworlds are all Naboo and Tatooine.
I added a column I called "worldcount" that simply counts the occurrences of the homeworld so I can easily see how many times each homeworld occurs. I also only selected a few columns to simplify things:
...ANSWER
Answered 2022-Jan-23 at 19:44slice_max
is going to give you a maximum number of rows, not necessarily number of unique homeworld
s. Try this:
QUESTION
I'm trying to loop through the child object of a JSON array which stores objects. My JSON file is as follows:
...ANSWER
Answered 2021-Dec-05 at 14:08You are missing a class that matches the list of Species
that your JSON contains:
QUESTION
so im trying to implement a search box with useState and useEffect. we have an array of objects and want to filter it according to our search term. here is my implementation:
...ANSWER
Answered 2021-Nov-13 at 07:49You just add toLowerCase mehtod to your filter function. just like this :
QUESTION
I am looking for a RegEx to match all lines that have a specific quantity of delimiters or less.
For example, I have a large file with - as the delimiter
...ANSWER
Answered 2021-Oct-01 at 19:22Using .*
can also match a -
and {4,}
will match 4 or more occurrences.
In your last pattern ^(.*?-){4}[^-]+$
you match exactly 4 repetitions.
You could use a quantifier 1-4 instead to match 1 to 4 times a dash.
Using [^\n-]*
will match any char except -
and the \n
in the character class is to not cross matching a newline.
QUESTION
Now I have a new situation Version 3.0. I have this fake json:
...ANSWER
Answered 2021-Sep-30 at 02:30Query
- if olderAdress is an
array
(so notnull
also), add"isItemOfOlderAddress": true
field to all members - else keep the old value(so keep the
null
also)
QUESTION
Someone colud please help me with this situation?
I have this fake JSON...
...ANSWER
Answered 2021-Sep-16 at 17:55Query
- uses a system variable
$$REMOVE
if a field gets this value its removed - so the condition is
user.code
, keep old value if not"BLOCKED"
,"CANCELLED"
, else"$$REMOVE"
the field
QUESTION
someone colud please help me with this situation?
I have this fake JSON...
...ANSWER
Answered 2021-Sep-09 at 13:32You're very close, what you want to do is just to add the new location to the array before $unwind
ing it.
like so:
QUESTION
I am new to the mongoDB aggregation and I have this situation. I have this Json and I need to convert by "select" this object:
...ANSWER
Answered 2021-Sep-01 at 13:57The way to do this is $unwind
, this will make 1 copy of the document, for each member of the array.
QUESTION
I'm using swapi.dev API to get the data to my application in Spring Boot. I need to get information on a planet using its name. Therefore, I use the next url: https://swapi.dev/api/planets/?search=Tatooine. The JSON result is writing below:
...ANSWER
Answered 2021-May-21 at 09:33Since you are using Spring Boot, it usually comes bundled with handy tools for JSON parsing. Spring Boot wires per default jackson into your application.
The first thing, you'll need is a (reduced) POJO model of the response.
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