terminology – What is the name of a plot that displays data at each X, Y coordinate

I am creating a new plot infrastructure and I cannot understand what this type of plot should be called.

This is a fairly basic plot where you have an XY Cartesian grid and each cell in the grid represents data for this X, Y coordinate. Sometimes these cells contain continuous values ​​which will be represented with a color gradient scale . In this case, I would call it a heat map. However, sometimes it will contain boolean data, so i will only have one color for true and one for false. It doesn't really seem like a heat map to me. It is possible that someday I will add other types of discrete values ​​(like enumerations) where I will just have a different color for each value.

Is there a term that covers both heat maps and other heat map graphics where you have discrete values?

VC Post Grid displays custom taxonomy

I created a CPT linked to a custom tax and I use the publication grid of Visual Composer to display all the CPTs.

Is there a way to display the custom taxonomy name using the VC Post grid?

I know there is an element called "custom field" but it is post_meta and not a term right?

Unity displays pixelated noise in the scene

I opened Unity today with a weird bug that occurs. I can see pixelated noise (I don't know what to call it) and restart Unity or my Mac isn't working. What can I do? It doesn't affect the game, it just shows in the scene.

pixelated scene unit

ntp – ntpq displays the connections of stratum 3, the local machine is 16

It seems to me that I have strange problems when setting up an NTP server; I joined the NTP pool and I can see the connections to different nodes:

# ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 pacific.latt.ne 44.24.199.34     3 u   24   64    1   99.390  868.792   0.000
 144.172.126.201 129.7.1.66       2 u   23   64    1   68.857  858.741   0.000
 nu.binary.net   204.9.54.119     2 u   22   64    1   53.140  864.710   0.000
 ntp.your.org    .CDMA.           1 u   21   64    1   44.547  864.729   0.000

But querying my local node, is it still layer 16? Why wouldn't it synchronize?

# ntpdate -q 127.0.0.1
server 127.0.0.1, stratum 16, offset -0.000006, delay 0.02571
30 Mar 12:16:04 ntpdate[1666]: no server suitable for synchronization found

cancellations – The flight has been canceled by the airline but the travel agency's website still displays scheduled times?

I have a flight (flight number RS704, Air Seoul, Date: April 3) which has been canceled by the airline. They posted a notification about it on their official website.

But the online travel agent (GoIbibo) that I used to book this ticket still shows that the flight is operational. Currently, due to locking in India, Goibibo support is not available and there is no way to reach them.

I do not want to cancel it on their website as I am concerned that normal cancellation fees will apply. Should I just wait for their offices to reopen (hopefully on April 15)?

javascript – Cart-items displays an error after inserting the description field

I have been trying to figure out why my item in the cart is showing an error, but I can't figure it out. The problem started when I included the description field via content, and a small modification of my Js file.
Now all items added to the cart no longer show up when I open the cart.

Here is the link to the project on github http://elvin247.github.io

Bootcamp – displays the default boot loader

I have MacOS Catalina and Windows 10 Enterprise installed using Bootcamp, but it's a bit difficult to bring up the bootloader (I know this is the key to 39; option, but it doesn't always work). Is there a way to view the default boot loader and just boot into the default operating system after not seconds if no action is taken?

postgresql – Postgres displays count 0 for non-matching rows for 1 table

Let's say I have this diagram.

create table foo_access (
    id         serial primary key,
    user_id    integer not null,
    created_at timestamptz not null
);

-- This data set uses user_id=0 to mean null. _shrug_
insert into foo_access (user_id, created_at) values (0, '2020-03-20T00:00:00Z');
insert into foo_access (user_id, created_at) values (1, '2020-03-19T00:00:00Z');
insert into foo_access (user_id, created_at) values (1, '2020-03-18T00:00:00Z');
insert into foo_access (user_id, created_at) values (2, '2020-03-18T00:00:00Z');

I want to see how many different users have accessed foo at least once a day, in the past 5 days.

I have a query like this.

select
  date_trunc('day', created_at) as period,
  count(distinct user_id) as n
from foo_access
where user_id > 0 and
  created_at >= now() - interval '5 day'
group by period

Which gives me a table like that.

         period         | n
------------------------+---
 2020-03-18T00:00:00+00 | 2
 2020-03-19T00:00:00+00 | 1
(2 rows)

Almost what I want, but not quite.

Is there a way to also display the days when nobody has accessed foo? I would like the table to look more like this.

         period         | n
------------------------+---
 2020-03-15T00:00:00+00 | 0
 2020-03-16T00:00:00+00 | 0
 2020-03-17T00:00:00+00 | 0
 2020-03-18T00:00:00+00 | 2
 2020-03-19T00:00:00+00 | 1
(5 rows)

SQL Fiddle: http://sqlfiddle.com/#!17/ece05/2/0

This question is somewhat similar to How do I count matching values ​​and display 0 for non-matching values ​​in PostgreSQL ?, except that I am not joining two tables. I only have one table.

import export export – displays the data export module "Download CSV" icon does not appear in the html page

I'm using the "Views data export" module on my drupal 8 website. I created a view and added a data export to export certain fields. I attached it to the (Page), the csv icon appears in the view, but when I open the html page, I have nothing, the div is empty ().

user behavior – Joint analysis: displays all combinations but bad comparisons OR good comparisons but do not show all combinations?

For a project, I'm doing a joint analysis to determine which attributes users find most important to getting an ad-free subscription to a website. The analysis consists of 3 attributes with 3 levels. Some combinations are not valid (such as offering a free ad-free website), leaving 12 combinations. In order to reduce costs, I have tinkered with 3 surveys: each survey has 4 questions with 3 different combinations of attribute levels and an option "None of these". The idea behind this is that I cannot randomize combinations between questions without coding (only randomize in 1 question), but my thinking is that having a sufficiently large sample of users filling in only 1 out of 3 should balance that.

The problem I run into now is this: in order to show users all possible combinations, some of the comparisons in 1 question are not equal, for example same price but longer free trial period (this should be fixed by having 3 polls, but I'm not 100% sure if this is true from what I read online). But, in order to have equal comparisons between all questions and surveys, some of the attribute combinations are not displayed or are only presented in 1 survey. Both of these methods could result in biased data.

TL; DR: should I give users all combination options but unequal comparisons, or give them equal comparisons but not show users all combination options?