DeltaIV

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DeltaIV has asked 32 questions and find answers to 3 problems.

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DeltaIV questions

replace a Polars column with a 1D array
Add a new column into an existing Polars dataframe
Extract a substring from a string, as well as the remainder of the string
Get a random subset of a dictionary
Multiply each column of a data frame by the corresponding value of a vector [duplicate]
Build a file diagram for an R code
How can I gather_ on all columns but one?
Is it possible to reorder only the facets of facet_wrap, without reordering the underlying factor levels?
Changing the font size of figure captions in RMarkdown HTML output
Plot one numeric variable against n numeric variables in n plots

DeltaIV answers

Scipy root-finding method
How to turn (interpolate) this irregularly spaced time series into a regularly spaced one in R or Matlab?
interpretation of the output of R function bs() (B-spline basis matrix)