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QUESTION
I know I can do:
...ANSWER
Answered 2020-Nov-02 at 12:26I thought you could do this yourself, easily.
QUESTION
I want to compute closeness centrality measure on a network with disconnected components. closeness
function in igraph
does not give meaningful results on such graphs. (see)
Then I came accross this site where it is explained that closeness can be measured on graphs with disconnected components as well.
The following code is what is suggested to achieve this:
...ANSWER
Answered 2020-Sep-23 at 13:03The reason you get many rows with zero values is because it provides a closeness value for nodes 1 to 8934 (max value in your matrix). If you filter for the values in your dataframe you'll find the values you're looking for:
QUESTION
In my attached R function, I was wondering how to solve for mdes
(suppose it is unknown) which is currently one of the input values IF everything else is known?
Is it also possible to solve for mdes
and power
(both currently input values) IF everything else is known?
ANSWER
Answered 2020-Nov-01 at 09:26Define a function of one variable as
QUESTION
This is my transaction data. It shows the transactions made from the accounts in from
column to the accounts in to
column with the date and the amount information
ANSWER
Answered 2020-Oct-03 at 16:05Here is a way to do it:
QUESTION
I am working on a project that is a gui with a separate thread. When the user clicks a button a function is fired that sends data to the queue and launches the other thread. The other thread then gets the data from the queue and adds new data to it. Where the gui will then get that data and do something. But it gets stuck saying the queue is empty? Why is this and how can I fix it?
...ANSWER
Answered 2020-Feb-19 at 11:05The problem was being caused by having two threads access the same queue one thread would grab the information before the proper thread was able to access it. To solve the problem I made two queues one for each thread.
QUESTION
I'm new to programming and am trying my hand at swing. I have a JFrame that serves as as the default menu, and I have a JPanel that appears in it to handle logins. After a successful login the JPanel is supposed to send the login information to JFrame so it knows who is currently logged in.
The problem is that the JButton, when clicked, is activating the send portion(whose code is the JFrame) before the JPanel has the chance to check the credentials. They are both using the same actionlistener so I don't know how to control the order.
...ANSWER
Answered 2019-May-27 at 02:03The order of events is generally not guaranteed. Observationally, they tend to be trigged in FILO (first in, last out) order.
A better solution would be to decouple the process, so any interested parties are not reliant on the button action, but instead on the component telling them when the validation has occurred.
A "simple" solution is to use the existing API functionality
QUESTION
Tried to search for an answer but did not found matching one. I have a problem with my simple React app (contactForm + contacts list). Locally app is not rendering and I got two alerts:
"react.js:20478 Warning: Failed prop type: Invalid prop
contact
of typestring
supplied toContactForm
, expectedobject
. in ContactForm (created by App) in App"
and
react.js:20478 Warning: Failed prop type: Invalid prop
items
of typestring
supplied toContacts
, expectedarray
. in Contacts (created by App) in App
What is interesting, alerts shows only locally (I run app with http server). When I upload code on GitHub and run via GitHub Pages (link in repository) - app is rendering and none of alerts occurrs. Can somebody explain this to me?
Files structure - script.js (only rendering App) and components: App, Contact (single contact), Contacts (list of contacts) and ContactForm.
App:
...ANSWER
Answered 2018-Nov-29 at 18:28Problem solved: code was OK, but I had cashe issue. Cleaning the browser/ctrl+F5 habit solves the problem.
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