chaos | A lightweight framework for writing REST services in Scala
kandi X-RAY | chaos Summary
kandi X-RAY | chaos Summary
A lightweight framework for writing REST services in Scala. Chaos (Greek χάος, khaos) refers to the formless or void state preceding the creation of the universe or cosmos in the Greek creation myths. Chaos (the framework) precedes creation of a universe of services.
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Trending Discussions on chaos
QUESTION
I'm attempting to solve a set of equations related to biological processes. One equation (of about 5) is for a pharmacokinetic (PK) curve of the form C = Co(exp(k1*t)-exp(k2*t)
. The need is to simultaneously solve the derivative of this equation along with some enzyme binding equations and initial results where not as expected. After troubleshooting, realized that the PK derivative doesn't numerically integrate by itself, if k is negative using the desolve ode function. I've attempted every method (lsode, lsoda, etc) in the ode function, with no success. I've tried adjusting rtol, it doesn't resolve.
Is there an alternative to the deSolve ode function I should investigate? Or another way to get at this problem?
Below is the code with a simplified equation to demonstrate the problem. When k is negative, the integrated solution does not match the analytical result. When k is positive, results are as expected.
First Image, result with k=0.2: Analytical and Integrated results match when k is positive
Second Image, result with k=-0.2: Integrated result does not match analytical when k is negative
...ANSWER
Answered 2021-Apr-30 at 15:49The initial value should be
QUESTION
I have an html tag as a string. If 'md' is included in the class attribute in this tag, I want to select it and get the expression in the tag.
Example:
'(expression)
is first selector
- Class attribute included
md
is second selector - At the same time, the tag should not be empty.
I mean, I need a regex that starts with and ends with
and gives tag with
md
in class attribute, but I couldn't get out of it.
What I did is trying to select those with direct md attribute, but this is wrong. Also problem with nested tag ones as well.
...ANSWER
Answered 2021-May-29 at 11:49If you have no parser or dom available and can only get the parts from the string with a pattern, you might get away with:
QUESTION
I'm implementing Kube-monkey in my dev Kubernetes cluster, and can see that the PODs are getting terminated every 30 seconds.
Could someone please help me to set POD termination interval in Kube-monkey(Chaos Monkey for Kubernetes clusters) to some other time?
I tried setting interval
parameter in the kube-monkey yaml file (as below) to terminate the PODs every 5 minutes, but doesn't work.
ANSWER
Answered 2021-May-21 at 04:22If you see the official helm chart values.yaml there is no interval key. since you have kept schedule_immediate_kill :
TRUE default kill time will be 30S
https://github.com/asobti/kube-monkey/blob/master/helm/kubemonkey/values.yaml
you can change the interval time using schedule_delay
QUESTION
Am building a movies App where i have list of posters loaded using TMDB using infinite_scroll_pagination 3.0.1+1 library. First set of data loads good but after scrolling and before loading second set of data i get the following Exception.
...ANSWER
Answered 2021-May-30 at 10:18In Result
object with ID 385687 you have a property backdrop_path
being null. Adjust your Result
object and make the property nullable:
String? backdropPath;
QUESTION
hope you're all fine.
That's my first question, so I'm sorry if something's not right about it.
I'm studying numerical stability and chaoticity of some dynamical systems, more specifically, about the Circular Restricted Three Body Problem (CR3BP), defined by the set of 3 second order differential equations. After transforming those three second order differential equations in six first order differential equations as seen here i can finally finally work with them numerically using scipy's ODEINT. Here's an example of an orbit integrated for T = 2^10 with n = 2^18 points (np.linspace(1, 2^10, 2^18)) and here's a bit of my code for this, the main function to be integrated:
...ANSWER
Answered 2021-May-28 at 07:13This is probably due to the step size control being also influenced by the rapidly growing v
vector. Either by regulating step sizes rapidly down due to stiffness, or more likely, due to increasing the step size to match the dominant components, thus becoming unsuitable for an exact integration of the original trajectory. This rapid growth is the reason that Lyapunov exponents were introduced, as they capture this growth in nicely bounded numbers.
What you can do is to split up the integration into smaller chunks and normalize the v
vector at the start of each chunk. One would have to experiment on how long it takes until the v
component unduly dominates the step size control. As the coupling is purely multiplicative, the dynamic theoretically is linear. So it could also help if you scale the initial v
to have norm 1e-100
.
First however check what error tolerances you use. Setting them narrower also tends to stabilize the computation. You might also get some progress be setting the maximal step size hmax
to half or so of the external step.
Or you could do the Lyapunov exponent computation like I explored in https://scicomp.stackexchange.com/questions/36013/numerical-computation-of-lyapunov-exponent. This approach however increases a system of dimension n
by the n x n
matrix of eigen/singular vectors and the n
products of exponents times time.
QUESTION
I asked a question yesterday about how to turn a JSON file into a dataframe, but I was asking the wrong question
I have a JSON file that looks like the below
There are two levels of keys (some times repeating and other times not)
...ANSWER
Answered 2021-May-25 at 12:39Use nested list comprehension with append dict to values of nested ditionaries and pass to DataFrame
constructor:
QUESTION
I have a nest JSON file that looks like the below (first 2 of many objects):
...ANSWER
Answered 2021-May-25 at 06:37I'd suggest a list-comprehension
that reads your dict
:
QUESTION
I have basically created 2 Xmls. one where the user enters the phone number and then on pressing a button it goes to the OTP verification screen. But the issue here is that I am not receiving any OTP from Firebase, but after 5 sec I get a toast message that the verification failed. How could it fail if I haven't even got the message. I also tried putting another number so that I can enter the code manually. But Firebase isn't sending me the OTP.
BASIC IMPLEMENTATION --- click Forgot Password -> Ask for Mobile Num ->Verify Otp ->Reset Password->Login Page
P.S I have enabled the phone authentication in Firebase.
OtpActivity.java
...ANSWER
Answered 2021-May-22 at 06:56Add Country code (+91 for India) before the user phone number. It will Work.
QUESTION
ANSWER
Answered 2021-May-05 at 23:55When using recursion you need to do something with the result and return a value accordingly otherwise nothing will happen. In the code below we use the return statement to make a chain of people between the ancestor and the descendant. I have annotated what additional steps need to be taken in the code below. The key part is String result = getOneAncestor(...)
and return result + " born of " + ancestor.name;
as shown here:
QUESTION
I have a helper file with some exported functions. And I have a ContextProvider with some shared data. Now I need to change the Data in the Context from inside the helper functions.
But there are errors if I call the useContext statement inside the function bodys and also if I do it outside.
If I create one default function MyHelper() in the helper file I can call the useContext inside and its working. But then I can't use different functions as api from another file. Only the MyHelper().
How can I call more than one exported functions in another .js File and also change there context data?
I have made an example code which shows my problem without the overhead of my original code:
MyScreen.js
...ANSWER
Answered 2021-Mar-19 at 18:57The reason you see the error is that you are calling a hook outside of the component body. In your case that is the useContext
hook. In the first case you are calling it on a module level and in the other two cases you call it inside of a function but then you call that function in a handler which is also "outside" of the component. What you need to do is to extract a hook that you call unconditionally in your component. That hook can expose (return) a function that you can call in your handler.
You can create your own custom hooks which are composed from other hooks:
MyHelper.js
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