tad | A desktop application for viewing and analyzing tabular data | Data Visualization library
kandi X-RAY | tad Summary
kandi X-RAY | tad Summary
Tad is a desktop application for viewing and analyzing tabular data such as CSV files.
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QUESTION
var data = [
{"name": "Lincoln", "pid":1, "sex": "M"},
{"name": "Tad", "pid":2, "sex":"M"},
{"name": "Mary", "pid":3, "sex": "F"},
];
var nodes = svg.append("g")
.selectAll("rect")
.selectAll("circle")
.data(information.descendants())
.enter()
.append(function(d){
getPerson(d.data.child).sex === "M" ? "rect" : "circle"
})
...ANSWER
Answered 2021-Jun-09 at 19:45There are numerous ways to achieve this. The first option below uses only rectangles, the second and third option use svg paths (all three options simplify positioning, modifiction of selection, changing shape from one to the other.)
The fourth option is an append where the elements vary between rect and circle.
Round some Rectangles
If your shapes are circle and square, perhaps the easiest is to use rectangles with rx, ry properties so that some rectangles appear like rectangles, and others like circles:
QUESTION
I've searched high and low and the following code is the closest I've come to my objective.
This is what I'm working on:
I wrote some code (OK, honestly, mostly copied bits and pieces and pasted into what is probably jumbled code that works) to email documents to my students. If a doc is open, I get and error, which allows me to manually save and close the doc (thx to Debug), and continue on. I would like to automate this, but Word seems to make things a tad difficult by opening each doc in a separate instance. I can get one instance and its doc, but if it is not the one I need, I cannot save and close it. I found how to get the other instances, but I have not found how to check each instance to see if the doc which it opened is the one I want.
I used ZeroKelvin's UDF in (Check if Word instance is running), which I modified a little bit...
...ANSWER
Answered 2021-Jun-08 at 08:22You may like to consider controlling the number of instances of the Word application that are created. The function below, called from Excel, will return an existing instance of Word or create a new one only if none existed.
QUESTION
I have this dataset:
...ANSWER
Answered 2021-Jun-05 at 01:18You can use distinct()
on track
, keeping all other columns in the dataframe.
QUESTION
I am a tad stumped on this following CSS shenannigan. I have a text input element and its background is red, and I want to animate a whitewash effect when it becomes focused, and the reverse red-wash effect when it is unfocused.
...ANSWER
Answered 2021-May-19 at 14:48You don't need JS for this.
You can run the same animation in reverse for the input when it is not in focus.
However, there's a slight hitch as once an animation has been run CSS doesn't run it again - so using the same animation-name it just thinks it's done it.
This snippet copies the animation keyframes reveal but calls it unreveal and gets it run in reverse when the input is not in focus:
QUESTION
I've just started using Linux as part of my computer science degree.
I'm writing some very simple Bash scripts and I've become a tad bit stuck.
I would like the script I'm attempting to write to be able to differentiate between "non valid inputs ie letters" from "valid inputs ie numbers from a specific range"
Currently the script "works" although I'm having troubles with another echo that I would like only to "echo" when the below line is "not true", is there a simple way to write this? I'm not specifically looking for efficient code, just code that I can learn from and understand at my amateur level.
So, long story short, is it possible to obtain information from the command line below, so that I can have a simple "not true" variable that I can use in another "else" or "elif" command?
For reference line 1 is to detect alphabetical inputs, and line 2 being the line of code I would like to write as "not true" for use in another part of my script.
let xx=$a+1-1 2>/dev/null; ret=$?
if [ $a -ge 7 ] && [ $a -le 70 ] && [ $xx -eq $xx ] && [ $ret -eq 0 ]
I'm not sure I'm explaining it very well, so any help would be appreciated. :)
...ANSWER
Answered 2021-May-18 at 02:09Welcome to Stack Overflow. :)
Start by reading the docs. I don't mean that in any way to be mean - it's just the best way to go about this.
c.f. this manual
Then read through the BashFAQs
Also, this site is really your friend. Start by familiarizing yourself with how to ask a question well.
For your question, if I read it right:
QUESTION
Let's say someString initialization is a tad complicated, hence we write a simple member function stringInitialization() with which to initialize someString in the body of the constructor:
...ANSWER
Answered 2021-May-06 at 06:06Your assumption is correct. The constructor DemoL(int rNumber)
needs to be able to default construct the member someString
and this is no problem because std::string
is default constructible.
One obvious point is that one member could be not default-constructible, in which case you would have to initialize it.
But even if it is, default constructing it could be a waste of resources, if you are changing it right after, so the second alternative seems better to me as it goes straight to the point.
However, since stringInitialization
returns by value, I would use std::move
, no, this is actually a bad idea, as pointed out in the comments.
So as a conclusion:
- the two codes are the same as regards
someNumber
- the first code default-initializes
someString
("calls"std::basic_string<...>::basic_string
) and then assigns it (callsstd::basic_string<...>::operator=
) - the second code constructs the return
std::string
value from the sting literals when the call tostringInitialization
returns (callsbasic_string<...>::basic_string(const char*)
), and then copy-constructssomeString
(callsbasic_string<...>::basic_string(basic_string&&)
); actually copy elision happens becausestringInitialization
returns an rvalue.
QUESTION
We are running an API server where users submit jobs for calculation, which take between 1 second and 1 hour. They then make requests to check the status and get their results, which could be (much) later, or even never.
Currently jobs are added to a pub/sub queue, and processed by various worker processes. These workers then send pub/sub messages back to a listener, which stores the status/results in a postgres database.
I am looking into using Celery to simplify things and allow for easier scaling.
Submitting jobs and getting results isn't a problem in Celery, using celery_app.send_task
. However, I am not sure how to best ensure the results are stored when, particularly for long-running or possibly abandoned jobs.
Some solutions I considered include:
Give all workers access to the database and let them handle updates. The main limitation to this seems to be the db connection pool limit, as worker processes can scale to 50 replicas in some cases.
Listen to celery events in a separate pod, and write changes based on this to the jobs db. Only 1 connection needed, but as far as I understand, this would miss out on events while this pod is redeploying.
Only check job results when the user asks for them. It seems this could lead to lost results when the user takes too long, or slowly clog the results cache.
As in (3), but periodically check on all jobs not marked completed in the db. A tad complicated, but doable?
Is there a standard pattern for this, or am I trying to do something unusual with Celery? Any advice on how to tackle this is appreciated.
...ANSWER
Answered 2021-Apr-29 at 09:24In the past I solved similar problem by modifying tasks to not only return result of the computation, but also store it into a cache server (Redis) right before it returns. I had a task that periodically (every 5min) collects these results and writes data (in bulk, so quite effective) to a relational database. It was quite effective until we started filling the cache with hundreds of thousands of results, so we implemented a tiny service that does this instead of task that runs periodically.
QUESTION
Thanks to @El_Vanja
...ANSWER
Answered 2021-Apr-27 at 11:34Thanks to @El_Vanja
QUESTION
My problem is that I'm trying to get a custom input from the user in the form of TextBoxes. More specifically, I want to give players a chance to input feedback about my Roblox Game but the text from the textbox keeps being nil even when I type something into it. I expect it's probably an error on my part but I'm a tad unsure.
So currently, it looks like this on the client:
...ANSWER
Answered 2021-Apr-18 at 20:30So as you say the print statement always prints Message RAW = "
:
Here you assign an emtpy string:
QUESTION
In Symfony you can direct inject a service into a controller function:
...ANSWER
Answered 2021-Apr-12 at 14:06There is not a significant performance or memory advantage in either case, the injected services are references, not new instances.
Most modern designs would not have controllers with many different methods in any case. And if many public methods of the same class had very different dependencies, maybe all these methods did not belong in the same class to begin with?
In the end, these design differences are an stylistic choice. Nowadays, constructor injection tends to be preferred (around me, at least), because since the dependencies are what the class needs to have to be in a valid stated to work, passing them at instantiation time seems more logical to many.
There is nothing inherently wrong in passing this as method parameters in many cases (as in having any other type of callable
s as a parameter), but what I believe is best is to think of controller actions as any other method:
- how does the method reads more clearly?
- would a method consumer need to know the class dependencies, and change the dependencies at call-time, or is that beyond the responsibilities of the consumer?
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