VCE | small javascript library for writing and presenting | Code Editor library
kandi X-RAY | VCE Summary
kandi X-RAY | VCE Summary
A small javascript library for writing and presenting interactive video adventures.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of VCE
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QUESTION
I am performing an event study in Stata with the following specification:
...ANSWER
Answered 2021-Apr-15 at 20:22It looks like your problem was solved, but I will add a solution that would take advantage of the stored results from reghdfe
and some linear algebra. Also note that you are using 1.96 to construct your confidence intervals which, depending on the number of observations and regressors, may not be a good approximation for the underlying t-distribution.
QUESTION
I'm unable to read gzip encoded response in a Symfony projet. Here is my service :
...ANSWER
Answered 2021-Apr-14 at 14:23See https://github.com/symfony/symfony/issues/34238#issuecomment-550206946 - remove Accept-Encoding: gzip
from the array of headers if you want to receive a unzipped response, or unzip the response on your own
QUESTION
I am working in Wordpress with Visual Composer, and I have a toggle container. Essentially I click on each tab and the content below changes. I would like to assign a different image to each tab as a background, through css. I have achieved this however since each tab has the same class name (given to it by visual composer) the image is the same. I need to figure out how I can give each tab its own unique id, so that I can give each tab it's own background image - but since I can't edit the html directly, I think I need to do this with javascript. Does anyone know how I can achieve this? Here is the html code below:
...ANSWER
Answered 2021-Apr-11 at 13:31I'm not familiar with Wordpress and I am not sure if you can add javascript, but if you can, the code below can help you if in the page only those divs has the class 'vce-toggle-container-tab':
QUESTION
I am executing below ansible task based on facts value gathered via ansible.
...ANSWER
Answered 2021-Mar-05 at 12:08As pointed in the documentation:
Ansible facts are data related to your remote systems, including operating systems, IP addresses, attached filesystems, and more. You can access this data in the
ansible_facts
variable.
Source: https://docs.ansible.com/ansible/latest/user_guide/playbooks_vars_facts.html#ansible-facts
So your taks should be:
QUESTION
I can call the Stata Do-file from Python successfully, but what would be the best way to get a local macro into Python from Stata? I intend to use the Do-file in a loop in Python.
What I have so far:
Python:
...ANSWER
Answered 2021-Jan-10 at 08:55Better integration between Python and Stata is available in Stata 16.1, but a pragmatic solution available for earlier versions would be to write on disk your Stata matrix with your results (here I am using an Excel file) and then read it from Python. Here an example of lines of code you can put at the end of your dofile to write your desired matrix.
QUESTION
The following seems obvious, yet it does not behave as I would expect. I want to do k-fold cross validation without using SCC packages, and thought I could just filter my data and run my own regressions on the subsets.
First I generate a variable with a random integer between 1 and 5 (5-fold cross validation), then I loop over each fold number. I want to filter the data by the fold number, but using a boolean filter fails to filter anything. Why?
Bonus: what would be the best way to capture all of the test MSEs and average them? In Python I would just make a list or a numpy array and take the average.
...ANSWER
Answered 2021-Jan-06 at 08:43As a matter of fact, two different things are going on here that are not necessarily directly related. 1) How to filter data with a randomly generated integer value and 2) k-fold cross-validation procedure.
For the first one, I will leave an example below that could help you work things out using Stata with some tools that can be easily transferable to other problems (such as matrix generation and manipulation to store the metrics). However, I would call neither your sketch of code nor my example "k-fold cross-validation", mainly because they fit the model, both in the testing and in training data. Nonetheless, the case should be that strictly speaking, the model should be trained in the training data, and using those parameters, assess the performance of the model in testing data.
For further references on the procedure Scikit-learn has done brilliant work explaining it with several visualizations included.
That being said, here is something that could be helpful.
QUESTION
I'm currently working on a replication of a paper. The author uses Stata, which I know very little about it, therefore I must translate it to R. I have one question about the following codes:
...ANSWER
Answered 2020-Nov-23 at 01:40The following is impossible to verify without a seeing the data (use dataex
from SSC -- ssc install dataex
to create a sample dataset):
The difference likely arises because reghdfe
drops singletons (groups with only one observation), while felm
does not. So the sample you are using in R and Stata are not the same, creating differences you observe. Note also that, even when using the same data reghdfe
and felm
have different methods for computing clustered standard errors. There are several deeper discussions of this issue on Github.
QUESTION
I am trying to search for 3 letter target words and replace them with corrected 3 letter words.
e.g. CHI - SHA as a single cell entry (with hyphen) to be replaced with "ORD -" etc.
There will be instances where the target word is part of a word pair within a cell, e.g. CHI - SHA.
The code below works to capture all of the cases but I realized that when the the cell is e.g. XIANCHI - SHA it would also correct the part "CHI -" resulting in XIANORD - SHA.
How can I limit the fndlist to skip the target letters if they are part of a longer word?
Sample
- CHI - (single cell entry) converts to ORD -
- CHI - PVG (one cell) converts to ORD - PVG
- XIANCHI - PVG converts to XIANORD - PVG (error)
If I use lookat:xlwhole the code would only catch the CHI - case but not the pair but if I use xlpart it will catch the pair CHI - PVG but also corrects any word it finds with that element.
thanks for any help
...ANSWER
Answered 2020-Nov-06 at 20:29Edit: I wanted to give you something a bit more complete. In the below code, I used a separate function that creates a map between before and after values. This cleans up the code because now all of these values are stored in one place (also easier to maintain). I use this object to then create the search pattern, since a regular expression can search for multiple patterns at once. Finally, I use the dictionary to return the replacement value. Try this revised code, and see if it better meets your use case.
I ran quick performance test to see if it performed better/worse than built-in VBA replace function. In my test, I used only three of the possibilities in my regular expression search/replace, and I ran a test against 103k rows. It performed equally as well as a built-in search and replace using only one value. The search and replace would have had to be re-run for each of the search values.
Let me know if this helps.
QUESTION
I am trying to scrape the content of this page: https://www.morningstar.com/etfs/arcx/vdc/portfolio using BeautifulSoup and the selenium webdriver, and I have no problem doing so with all the content until I get to the 'Holdings' table, which by default shows only the top 10. I would like to get the top 25, which it will show when one clicks the 'Show more holdings' button. I 'inspected' the elements, and it seems like there is a javascript called to 'expand'
...ANSWER
Answered 2020-Oct-11 at 03:01BS4 is an html parser you want to use Selenium. Also wait for the element after page load to be clickable and then simply grab the element and click it.
QUESTION
I am trying to understand how is exactly react useEffect cleanup used and for what purpose. Could you please help me fix my code by adding the cleanup
as far as I am able to understand it's used in case of API calls in order to close a subscription. Still unable to clarify why it used and how exactly.
...ANSWER
Answered 2020-Sep-08 at 20:19You don't need to use cleanup hook here. You are not subscribed to anything. When you subscribed in a useEffect to something and don't unsubscribe on a component destruction, this subscription will continue listening to remote source, leaching device memory and user data.
To test it, you can just attach say a click listener to a button, mount/unmount a component (without page refresh) and see in chrome dev tools how the list of subscriptions/listeners grows.
Edit: Try this
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