xweb | High performance async web framework | Web Framework library
kandi X-RAY | xweb Summary
kandi X-RAY | xweb Summary
High performance web framework.
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Top functions reviewed by kandi - BETA
- Start listening for events .
- Initialize the response .
- Initialize a URL .
- Validate data .
- Handle request .
- Check if value is True .
- Hello!
- Simple WSGI application .
- Example example .
- Return the home page .
xweb Key Features
xweb Examples and Code Snippets
Community Discussions
Trending Discussions on xweb
QUESTION
Although I have read lots of posts about fitting distributions in python, I am still confused about usage floc
and fscale
parameters. For general information I mainly used this, this and this sources.
I know, that given distribution lets say f(x) becomes more general distribution when using loc
and scale
parameters, which can be described by formula
f(x) = f((x-loc)/scale).
In scipy, we have to choice. When fitting a distribution, using formula distr.fit(x)
, the initial guess of loc
parameter is 0 and initial guess of fscale
parameter is 1 (so that we assume that the parametrized distribution is close to nonparametrized distribution). We can also force scipy to fit 'original' distribution f(x) using distr.fit(x, floc = 0, fscale = 1)
.
My question is: is there any general advice when to force scipy to fit 'original distribution' besides the 'parametrized one'?
Here is the example:
...ANSWER
Answered 2018-Mar-27 at 16:22Provide some guess-estimates for loc
and scale
whenever you are able. Provide floc
and fscale
only when you actually need this for your subsequent use of the model; that is, if an answer with, say, distribution mean different from 0 is just not acceptable to you.
For example, if you model elastic force by Hooke's law F = k*x
and want to find k
from experimental force F and deformation x, there is no use in fitting a general linear model k*x+b
; we know that zero force produces zero deformation. Any nonzero value of b
may achieve better fit but only because it follows experimental errors better, which isn't the goal. So this is a situation where we want to force a certain parameter to be zero.
Never use floc
or fscale
if you just want to improve the fit; use loc
and scale
instead.
Fitting a distribution to data is a multivariable optimization problem. Such problems are difficult and solvers frequently fail when the starting point is far from the optimal. If floc
gives better result than unconstrained fit, that only means the unconstrained fit failed.
To improve the outcome, you should provide tentative loc and scale parameters whenever you are able to come up with something reasonable.
In your lognormal example, you compare not giving any hint to imposing the restriction floc=0
. But the best strategy is just to give a hint with loc=0
:
QUESTION
I have credentials to access Abila netForum xWeb functions. I am using PHP to do so. What I need to do is get a list of all events. I am trying to use GetActiveEventListByDate()
I am able to authenticate just fine - got the Authenticate Token and SignOn Token from the SignOn WSDL. Got the Authenticate Token from netFORUMXMLOnDemand WSDL as well.
Then, I am trying to get all events by passing the date range to netFORUMXMLOnDemand WSDL - and that does not work for some reason. I think it is probably the date format but no matter what I try it does not work.
I tried:
...ANSWER
Answered 2017-Jul-31 at 20:44Sorry all, at the end, it was not the date issue at all. I am posting this in case someone has the same issue.
The problem was some illegal character in an event title in my date range. For some reason, if you encounter an illegal character while trying to access the list, you are gonna get a silent error - no results displayed.
It took Abila people a few weeks to figure this one out.
Hope this helps someone.
QUESTION
I need to parse a specific Node (Token) so that I can use it in my next API request. I get the SOAP XML response fine (displayed below). I get stuck at the last line of this Subroutine, compile error: argument not optional. Once I set variable LastToken - I would like to see it in a MsgBox to verify it. Can't seem to find the right syntax to get through this.
VBA Code (Using Access 2016)
...ANSWER
Answered 2017-Mar-27 at 18:50This worked for me (loading the XML from a worksheet cell for testing purposes):
QUESTION
I have a range of particle size distribution data arranged by percentage volume fraction, like so:;
...ANSWER
Answered 2017-Feb-11 at 15:13I guess one possible workaround is to manually fit a pdf to your bin data, assuming x values are the midpoint of each interval, and y values are the corresponding bin frequency. And then fit a curve based on x and y values using scipy.optimize.curve_fit
. I think accuracy of the results will depend the number of bins you have. An example is shown below:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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You can use xweb like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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