Recent content by fog37

Hello, I have downloaded the dummy mail server hmailserver because my Outlook is trying to send a couple of emails out but they are stuck. I read that using a dummy smtp server, instead of the actual smtp server, would help get those email out and "reset" Outlook. I tried but Outlook was not...

Yes, I am considering either a dataset where the time column contain time values that are separated by equal amounts (ex: day 1, day 2, day 3, ...., day 10) and a dataset that does not have the time column at all (ex: weight ##W## and height ##H##)... Thank you for your good inputs.

Thank you. Just to be clear, if we have a dataset with only two columns, hence two variables like Height ##H## and weight ##W##, we could create a simple linear regression model to predict ##H## from ##W##. The dataset does not have time ##t## as a variable. This cross-sectional data has been...

The goal of multivariate time series analysis appears to be the creation of a model that is able to predict the value of the chosen target variable ##Y## at the unknown time ##t## given the known values of the target variable ##Y## itself at previous times as well as the values of other ##X##...

Hello, I understand that a dataset that involves time ##T## as a variable and other variables ##Variable1##, ##Variable2##, ##Variable3##, represents a multivariate time-series, i.e. we can plot each variable ##Variable1##, ##Variable2##, ##Variable3## vs time ##T##. When dealing with regular...

Thank you! And what is your intuition about the filters corresponding to scaled and shifted mother wavelets? How do you factor in the father wavelet (scaling function) which is not present in the CWT that is only based on assembling the signal as a superposition of scaled and shifted mother...

Ha! Thank you. I checked the wikipedia page out but it is a little too sophisticated for me....Would you be able to provide some intuition? So the dot product of any two vectors does not change if we change basis. But if the vectors are orthogonal in one basis and not orthogonal in another...

Yes, I was under the wrong impression that the dot product, regardless of the coordinates of the vectors changing under different bases, would remain invariant...but I guess not... Interesting (to me) that two vectors that are orthogonal in one basis are not orthogonal in a different basis. And...

Yes, so, based on Wikipedia, CGI (...Common Gateway Interface (CGI) is an interface specification that enables web servers to execute an external program to process HTTP or HTTPS user requests....) is similar to WSGI in the sense that they are both interfaces that the web server uses to connect...

From my studying/reading, a web server like Apache or Nginx is only capable of serving web clients static content. In the case dynamic content is request (ex: results from a calculation) the server must talk to the application server (Flask app in my case). I think It can do it directly but...

Thank you! So you confirm that the dot product between two vectors depends on which basis we are using to represent them?

Thank you. Would you ever Docker containerize the Python application before putting it on the server? I am appreciating the isolation Docker containers provide but it is an extra step and wonder when it is absolutely necessary...

Hello, I want to learn about servers and deploying Python applications simply (without going to AWS, Azure, etc. but something a little more complicated than deploying my app to streamlit Cloud). I would like to get some recommendations given the multitude of options. My goal is to create a...

Hello, I have watched a really good Youtube video on linear algebra by Dr. Trefor Bazett and it made me think about a question... () Personal Review A basis in 2D space is formed by any two independent vectors that are not collinear geometrically. Any vector in the 2D space can then be...

I will read better. For some reason, I know Git is supposed to make life easier with version controlling but it feels like it has been the opposite, given that I am trying to understand how Git works... Thank you!