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How to plot two series in one single plot with different y-axis in plot.xts in R (current version of xts)

I'm trying to recreate this plot that I made with the old (pre 0.10-0) version of xts. Here's some example data: library(xts) # Run using xts_0.9-7 set.seed

Github Actions: npm process completed with exit code 1

While running npm run prod in my app, I get the error: > prod > npm run production > production > cross-env NODE_ENV=production node_modules/webpa

How to do a good backtest and reduce overfitting

According to a celebrated result of Kesten (Acta Math 131:207– 248, 1973), random difference equations have a power-law distribution tail in the asymptoti

Piecewise python/seaborn plot with segmented lines?

I'm trying to use seaborn to make lineplots of a few variables, but I'm trying to make sure that lines are segmented when not continuous. Example below: df = pd

How to select specific cases within one variable to create a new variable?

I have a 'telephone' variable where one participant may have put their landline number, whilst others have put their mobile number. I want to pull out all the l

Formatting appointment body

I am trying to schedule a meeting automatically from Excel. It is simple, unless you are trying to format the body text. I made some research about GetInspector

Call reactive function() outside the shiny app

I have created the following reprex which tries to use a reaction function price() outside the shiny app. If i use df<-5 then the code works but when i use d