survey

问题 Are there any surveys anywhere which report on number of projects and/or people using the assorted Free version control systems? Also interesting is if a similar survey was one over time, to see how things have changed. Obviously, it's hard to measure this sort of thing completely accurately, but it should still be possible to get reasonable estimates. Since tags are annoyingly limited to five items, and I didn't want a bias towards/against any of the systems, for search purposes I'll add the

问题 Are there any surveys anywhere which report on number of projects and/or people using the assorted Free version control systems? Also interesting is if a similar survey was one over time, to see how things have changed. Obviously, it's hard to measure this sort of thing completely accurately, but it should still be possible to get reasonable estimates. Since tags are annoyingly limited to five items, and I didn't want a bias towards/against any of the systems, for search purposes I'll add the

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . Please give suggestions for best Asp.Net survey application with source code - commercial is fine.. 回答1: The Survey Project is one of the most mature survey applications written in ASP.NET / C#. It's open source and has full source code available. See here: http://www.surveyproject.info/ There are also some

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . Please give suggestions for best Asp.Net survey application with source code - commercial is fine.. 回答1: The Survey Project is one of the most mature survey applications written in ASP.NET / C#. It's open source and has full source code available. See here: http://www.surveyproject.info/ There are also some

问题 I am looking to implement (or build as a last resort) a type of survey engine that allows for extensibility and integration into an existing workflow engine. The survey/questionnaire engine should allow for admin users to add new questions and response types (text/bool/multiple/etc), should use SQL Server for persistence and ASP.NET 2.0 or greater. It should leverage AD for Windows Integrated Auth and security. Does anyone know of a good (free or cheap is even better) off-the shelf solution

问题 Designing my stratified sample library(survey) design <- svydesign(id=~1,strata=~Category, data=billa, fpc=~fpc) So far so good, but how can I draw now a sample in the same way I was able for simple sampling? set.seed(67359) samplerows <- sort(sample(x=1:N, size=n.pre$n)) 回答1: If you have a stratified design, then I believe you can sample randomly within each stratum. Here is a short algorithm to do proportional sampling in each stratum, using ddply : library(plyr) set.seed(1) dat <- data

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 5 years ago . I would like to compute in R how much the one percent wealthier concentrates. For example, maybe it is the case that the one percent wealthier concentrates 33% of total wealth in the country. I have a survey dataset with the variables: asset: Value of total assets for each individual (row); wgt :

问题 I haven't played with any coding in years and I am struggling with understanding the template that Qualtrics provided for disabling the "Next Button" in a survey. The "Next Button" doesn't have to be disabled entirely (could be colored white). Since the survey is for research purposes, I need to keep the button from distracting participants on timed questions. These are the two pages that I have looked at for coding. https://s.qualtrics.com/WRAPI/QuestionAPI/classes/Qualtrics%20JavaScript

问题 I'm trying to analyse a multiple response question from a weighted survey dataset. I like the srvyr package because it allows me to use the dplyr pipes, but I can't find the reference material on how to handle multiple response questions. I have a simple dataset looking at different sources of income. Here's an example of how the data looks like ID <- c(1,2,3,4,5,6,7,8,9,10) rent_income <- c("Yes", "Yes", "No", "Yes", "No", "Yes", "No", "Yes", "No", "No") salary_income <- c( "No", "Yes", "No"

问题 Any help with this would be really appreciated. I am using the Lumley survey package and am trying to simplify my code, but have hit a slight snag. The svymean function from the package is called as follows in my code, where the first argument is a formula indicating which variables I want, and the second argument is that dataset: svymean(~hq_ehla, FraSvy, na.rm=TRUE) I'm trying to create a function that will pull out the mean (proportions) and standard errors for categorical variables, so I