seeker | The Hugo template for the Pirsch documentation | Theme library
kandi X-RAY | seeker Summary
kandi X-RAY | seeker Summary
Our Hugo template for the Pirsch documentation. See You can freely use and modify this theme.
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QUESTION
I am trying to recode my education variable from a factor with 18 levels to a factor with 7 levels,ranging from no qualification - GCSE D-G, GCSE A*-C- A Level -Undergraduate -Postgraduate - other.
...ANSWER
Answered 2021-Jun-11 at 21:40The syntax of the first command is wrong. Instead of bes[[bes$education]]
use bes$education
. Square brackets [[]]
are to be used with numbers of columns and $
symbol with their names. It's either [[]]
or $
but not both.
QUESTION
I have an image file in the root directory with the main.go file. How would I get the path to serve the file while the golang api is hosted on google cloud (seems like all the files get messed up when its hosted on google cloud). Heres the code im using now:
...ANSWER
Answered 2021-May-30 at 14:58If you are using app engine then you don't really have access to file system. https://cloud.google.com/appengine/docs/standard/runtimes
You should be using cloud storage to write and read files. That will allow your files to be accessible across all the instances of your service that may be running at any given time.
QUESTION
I'm making a food donation application. I have two tables. One to store the user information(called "user_info") that is collected from a registration form and the other(called "donated_info") is to store the details of the food. Various fields of "user_info":
...ANSWER
Answered 2021-May-13 at 10:43It sounds like you just need a simple inner join
assuming the user_id
is the key
QUESTION
This question covers R Studio, pandoc and also LaTeX I suppose. The following is what my YAML looks like in R Studio:
...ANSWER
Answered 2021-Apr-20 at 19:06moderncv has the \nopagenumbers
macro to switch off page numbers:
QUESTION
here is the output
...ANSWER
Answered 2021-Apr-10 at 08:57As no return
is specified in display
method, the default is None
, see How to prevent Python function from returning None
Your display
method shows things, you don't expected it to return anything, so call it like
QUESTION
i want to ask about sql in postgresql, i got data from join with 3 table, i got the result but i got multiple data like this image result
and here my sql code in postgresql
...ANSWER
Answered 2021-Mar-29 at 05:35use distinct()
QUESTION
New dev here trying to get comfortable with JavaScript/jQuery.
I'm currently developing a page with tabs that shuffles content on my page based on which tab (button) is selected. The tabs are based on this code: https://codepen.io/broskibro/pen/VwKRmKQ
...ANSWER
Answered 2021-Mar-16 at 19:58I can't get tabbing to work in the codepen example, so its difficult to test the solution. But it seems like you are on the right track, I wrote up this:
QUESTION
Well, I'm stuck on this problem. I have a code for audioservice
(audioplayer.dart
) which takes a queue
to play. I'm getting the queue from playlist.dart
in audioplayer.dart
using ModalRoute
and save in a global variable queue
. Then, I initialize the AudioPlayerService. Now everything till here is fine but inside the AudioPlayerTask
class which extends BackgroundAudioTask
, when I try to access the variable (inside onStart
) it comes out to be an empty list. I don't know where the problem is and I'm not very much familier with the BackgroundAudioTask
class. Here's how it looks like:
ANSWER
Answered 2021-Feb-20 at 13:34audio_service runs your BackgroundAudioTask
in a separate isolate. In the README, it is put this way:
Note that your UI and background task run in separate isolates and do not share memory. The only way they communicate is via message passing. Your Flutter UI will only use the
AudioService
API to communicate with the background task, while your background task will only use theAudioServiceBackground
API to interact with the UI and other clients.
The key point there is that isolates do not share memory. If you set a "global" variable in the UI isolate, it will not be set in the background isolate because the background isolate has its own separate block of memory. That is why your global queue
variable is null. It is not actually the same variable, because now you actually have two copies of the variable: one in the UI isolate which has been set with a value, and the other in the background isolate which has not (yet) been set with a value.
Now, your background isolate does "later" set its own copy of the queue variable to something, and this happens via the message passing API where you pass the queue from the UI isolate into updateQueue
and the background isolate receive that message and stores it into its own copy of the variable in onUpdateQueue
. If you were to print out the queue after this point it would no longer be null.
There is also a line in your onStart
where you are attempting to set the queue, although you should probably delete that code and let the queue only be set in onUpdateQueue
. You should not attempt to access the queue in onStart
since your queue won't receive its value until onUpdateQueue
. If you want to avoid any null pointer exception before its set, you can initialise the queue in the background isolate to an empty list, and it will eventually get replaced by a non-empty list in onUpdateQueue
without ever being null.
I would also suggest you avoid making queue
a global variable. Global variables are generally bad, but in this case, it may actually be confusing you into thinking that that queue variable is the same in both the UI and the background isolate when in reality each isolate will have its own copy of the variable perhaps with different values. Thus, your code will be clearer if you make two separate "local" variables. One inside the UI and one inside the background task.
One more suggestion is that you should note that the methods in the message passing API are asynchronous methods. You should wait for the audio service to start before you send messages to it, such as setting the queue. AND you should wait for the queue to be set before you try to play from the queue:
QUESTION
wise SOers. It turns out Grafana dashboard json files use the same {{ }}
to do variable substitution as helm does. I have a grafana chart that is laden with these {{ }}
to a disagreeable degree.
When I want to put that chart into a template, like so:
...ANSWER
Answered 2021-Feb-17 at 08:00The issue was my super-dashboard.json
file was in the same directories as the templates and helm tried to templatize it. The solution is to have a directory structure like:
QUESTION
why is my code failing to run a simple executable using WinRM's C++ API?
...ANSWER
Answered 2021-Feb-10 at 12:15I wasn't aware of this so can't comment on whether it's common knowledge but Microsoft have a nifty error lookup tool where you can enter an error code (after converting it from a normal number to hexadecimal) and it tells you what it means.
In this case, 2150859250
(803381F2
in hex) corresponds to:
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