TH | Standalone C TH library | GPU library

I'm normally OK on the joining and appending front, but this one has got me stumped.

I've got one dataframe with only one row in it. I have another with multiple rows. I want to append the value from one of the columns of my first dataframe to every row of my second.

df1:

id Value 1 word

df2:

id data 1 a 2 b 3 c

Output I'm seeking:

df2

id data Value 1 a word 2 b word 3 c word

I figured that this was along the right lines, but it listed out NaN for all rows:

...

I've been stuck on this for a few weeks now....

df1:

2 1/1/2021 1/2/2021 1/3/2021 Name a door nan house b nan key door c nan house key d house key nan

df2:

2 key door house Name a nan nan nan b nan nan nan c nan nan nan d nan nan nan

desired output=

df2:

2 key door house Name a nan 1/1/2021 1/3/2021 b 1/2/2021 1/3/2021 nan c 1/3/2021 nan 1/2/2021 d 1/2/2021 nan 1/1/2021 ...

Is there a way in PostgreSQL to take this table:

ID country name values 1 USA John Smith {1,2,3} 2 USA Jane Smith {0,1,3} 3 USA Jane Doe {1,1,1} 4 USA John Doe {0,2,4}

and generate this table from it with the column agg_values:

ID country name values agg_values 1 USA John Smith {1,2,3} {0,1,3,1,1,1,0,2,4} 2 USA Jane Smith {0,1,3} {1,2,3,1,1,1,0,2,4} 3 USA Jane Doe {1,1,1} {1,2,3,0,1,3,0,2,4} 4 USA John Doe {0,2,4} {1,2,3,0,1,3,1,1,1}

Where each row aggregates all values except from the current row and its peers.
So if name = John Smith then agg_values = aggregate of all values where name not = John Smith. Is that possible?

...

Currently I have 3 tables like below

Master

ID_NUMBER ZIPCODE 1 12341 2 12342 3 12343 4 12344

Table1

ID_NUMBER CITYNAME COUNTYNAME 1 NEW YORK QUEENS 3 DETROIT SUFFOLK

Table2

ID_NUMBER CITYNAME COUNTYNAME 2 ATLANTA ROCKLAND 4 BOSTON WINCHESTER

My desired output is like below. I want to filter based on the zipcode from master table

ID_NUMBER ZIPCODE CITYNAME COUNTYNAME 2 12342 ATLANTA ROCKLAND

How would i go about writing a query for this? Below is what i have tried but it's giving me null values if the ID_NUMBER is not found on that particular table.

...

So I was fetching data from my database to print in a table however, it says that Class "App\Http\Controllers\User" not found. Here is the controller and here is how I will print the data

...

I have a dataset with various "chunks" of columns with different prefixes, but the same suffix:

ID A034 B034 C034 D034 A099 B099 A123 B123 ... 1 NA 1 NA NA NA 3 1 NA ... 2 2 NA NA NA 2 NA NA 2 ... 3 NA NA 2 NA NA 2 1 NA ...

The number of columns within each "chunk" also varies. Is there any way (other than manually, which is what I have been painstakingly doing with coalesce(!!! select(., contains("XXX")))) to automatically coalesce by chunk based on the shared suffix? That is, the result should resemble

ID 034 099 123 ... 1 1 3 1 ... 2 2 2 2 ... 3 2 2 1 ...

I'm not sure how to begin doing something like this, so any suggestions would be very helpful.

...

I have bitcoin historical data. I split the "DATE" Colum as "year month days and hour" because I wanted to sort data based on hours["AS it is hourly base data"]. the data goes up to 2021-12 ie Decmber["the dates goes from 1 to 30 every month"]. I want to sort this data further as:- "2019-Jan, 2020-Jan 20201-Jan" then "2019-Feb,2020-Feb, 2021-Feb" and soon on

Year Month DAy Hour open high low close 2019 1 1 0 3700.05 3725.58 3698.83 3715.09 2019 2 1 0 3700.05 3725.58 3698.83 3715.09 2019 3 1 0 3700.05 3725.58 3698.83 3715.09 2019 4 1 0 3700.05 3725.58 3698.83 3715.09 2019 5 1 0 3700.05 3725.58 3698.83 3715.09

can this be done by saying I have split the "DATE" column? if YES please any suggestion on how this can be achieved

The original "DATE" colum was as follows :- 2019-01-01T00:00:00Z

...

This is my table marks

quiz_1_marks quiz_2_marks quiz_3_marks quiz_4_marks 86.5 90.3 69.9 43.2 36.27 54.9 28.8 69.65

And I want select marks like this

max1 max2 max3 max4 90.3 86.5 69.9 43.2 69.65 54.9 36.7 28.8 ...

I need to split text on image into lines and then save every line as new img.

I understand how to split in lines, but how i can save all lines as img?

there is my code:

...