surveySystem | 问卷调查系统 - 后端使用 django & amp ; DRF 实现的 restfulApi | REST library
kandi X-RAY | surveySystem Summary
kandi X-RAY | surveySystem Summary
后端使用 django & DRF 实现的 restfulApi. 前端使用 vue & element-ui.
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QUESTION
I have a generic Java class for a simple progress indicator. It works fine if invoked directly (e.g. from main() or from a class constructor). But I can't get it to work when I create a simple menu and invoke it from an ActionListener associated with a menu item.
Here's the generic progress indicator class:
...ANSWER
Answered 2021-Apr-01 at 16:24actionPerformed is actually executed by EDT, so all invokeLater calls are queued and called after the pi.Close so that you can't see the progressbar update.
Here is how I modified your Process method to "take the counter out of EDT":
QUESTION
I'm writing a program that lets users run simulates on a subset of data, and as part of this process, the program allows a user to specify what sample size they want based on confidence level and confidence interval. Assuming a p value of .5 to maximum sample size, and given that I know the population size, I can calculate the sample size. For example, if I have:
Population = 54213
Confidence Level = .95
Confidence Interval = 8
I get Sample Size 150. I use the formula outlined here:
https://www.surveysystem.com/sample-size-formula.htm
What I have been asked to do is reverse the process, so that confidence interval is calculated using a given sample size and confidence level (and I know the population). I'm having a horrible time trying to reverse this equation and was wondering if there is a formula. More importantly, does this seem like an intelligent thing to do? Because this seems like a weird request to me.
...ANSWER
Answered 2018-Oct-09 at 08:45I should mention (just to be clear) that the CI is estimated for the mean, not the population. In that case, if we assume the population is normally distributed and that we know the population standard deviation SD, then the CI is estimated as
From this formula you would also get your formula, where you are estimating n. If the population SD is not known then you need to replace the z-value with a t-value.
QUESTION
I am trying to implement a bootstrap's crousal and navbar using asp.net's master page but nothing is apearing in the pages i tried to implement master page
Master page code
...ANSWER
Answered 2018-Jan-06 at 23:26Master :
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