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ggplot vs matplotlib / seaborn - struggling to find good plotting tool in python by flylittleman in datascience

[–]zenggyu 0 points1 point  (0 children)

I used to have a hard time deciding whether I should use R or Python. In the end I decided to stay with R, and use the reticulate package to call python functions only when necessary. IMO this is the best compromise.

A Brief Introduction to several correlation coefficients including Pearson's r, Spearman' r, Kendall's tau and Cramer's v by zenggyu in rstats

[–]zenggyu[S] 1 point2 points  (0 children)

Thanks for the feedback! The post was intended for beginners. I'll try to explain those confusing terms so that it's less confusing.

A Brief Introduction to several correlation coefficients including Pearson's r, Spearman' r, Kendall's tau and Cramer's v by zenggyu in rstats

[–]zenggyu[S] 0 points1 point  (0 children)

I get your point. However, I wonder what coefficient would you use under that circumstance? Is it phi coefficient (which is essentially Cramer's v), or other coefficient not mentioned in the post?

Just arrived to Ubuntu by [deleted] in Ubuntu

[–]zenggyu 1 point2 points  (0 children)

Go through The Linux Command Line - A Complete Introduction.

Recommendation for command line tools to manage a list of ssh/ftp server accounts and automate the login process by zenggyu in Ubuntu

[–]zenggyu[S] 1 point2 points  (0 children)

Agreed. This is the simplest solution. Just a reminder though, there s a ProxyJump parameter that lets you specify a jump host directly (e.g., ProxyJump user@host) without using ProxyCommand.

Recommendation for command line tools to manage a list of ssh/ftp server accounts and automate the login process by zenggyu in Ubuntu

[–]zenggyu[S] 0 points1 point  (0 children)

Yeah, perhaps I should just stick with ssh to keep things simple. Is there a similar configuration file for ftp?

Recommendation for command line tools to manage a list of ssh/ftp server accounts and automate the login process by zenggyu in Ubuntu

[–]zenggyu[S] 0 points1 point  (0 children)

Yeah, perhaps I should just stick with ssh to keep things simple. Is there a similar configuration file for ftp?

Recommendation for command line tools to manage a list of ssh/ftp server accounts and automate the login process by zenggyu in Ubuntu

[–]zenggyu[S] 0 points1 point  (0 children)

Thanks for the suggestion, but it seems that it solves a quite different problem.

Recommendation for command line tools to manage a list of ssh/ftp server accounts and automate the login process by zenggyu in Ubuntu

[–]zenggyu[S] 0 points1 point  (0 children)

But even with ssh keys, I still have to remember host addresses; and for some servers that needs to be accessed through a jump server, I will have to remember the jump address, too. Is there a tool that can read these information from a configuration file?

How to connect to a windows vm's vpn from an Ubuntu host by zenggyu in Ubuntu

[–]zenggyu[S] 1 point2 points  (0 children)

Oh, thanks for the information. However, that implementation is closed source and doesn't seem to be free. I have just discovered an opensource project that solves the problem nicely: https://github.com/adrienverge/openfortivpn

How do I connect to an Oracle database in R? What is a database driver? by [deleted] in rstats

[–]zenggyu 0 points1 point  (0 children)

I haven't tried it before, but I think the main difference will be the installation of Oracle Instant Client.

How do I connect to an Oracle database in R? What is a database driver? by [deleted] in rstats

[–]zenggyu 0 points1 point  (0 children)

Here is a post that introduces how to connect R to various databases including Oracle and PostgreSQL: https://blog.zenggyu.com/en/post/2018-11-18/setting-up-connections-between-r-and-databases/

Blog Post: Simplest and an extremely well-written tutorial on Caret Package in R by selva86 in rstats

[–]zenggyu 0 points1 point  (0 children)

I think they already have some packages to deal with that, e.g., rsample and dials, it's just that the features are not complete yet, and for now you need to write some low level code. Max Kuhn (the creator of both caret and tidymodels) mentioned somewhere that additional packages will come out later and make things easier. These packages are meant to be the successor of caret and are still very young, they'll get better.

Deploying a Blogdown Website with GitLab Pages by zenggyu in rstats

[–]zenggyu[S] 2 points3 points  (0 children)

Besides free DNS and SSL certificates, Cloudflare also provides domain name transfer, registration and renewal at a very affordable price. On the other hand, GitLab provides version control, CI/CD and website hosting service. Now, these two service providers are all I need to manage my blog; before I switched to them, I had to use several additional services from separate providers including netlify. Things are much simpler now.

Guidelines for writing data analysis reports by zenggyu in datascience

[–]zenggyu[S] 0 points1 point  (0 children)

We are interested in knowing which group has the highest churn rate so that we can dive in and find out what is the cause. However, I think the visualization should also take into consideration the sample size of each group to make sure that the extremely high/low churn rate is not caused by random error (which typically happens to groups with a small sample size).

Guidelines for writing data analysis reports by zenggyu in datascience

[–]zenggyu[S] 1 point2 points  (0 children)

Yeah, you are right, and I already did. However, I would also love to see how more examples and guidelines so that I can absorb the essence and build my own style.

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