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Title: Datanovia

Publisher:  alboukadel.kassambara
Message frequency:  1.38 / day

Message History

TipWhat you’ll find here A decision framework — when to reach for tidymodels, when for scikit-learn, decided by how the work is really done. The honest strengths of each, with a minimal workflow in both so the comparison is concrete. How to bridge them with reticulate and Apache Arrow

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TipWhat you’ll learn Read text out of a PDF with pdftools — whole pages with pdf_text(), word-level position data with pdf_data(), document metadata with pdf_info(). Clean the raw text — strip page breaks, collapse whitespace, and split into lines with base R and stringr. Get tables out three ho...

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TipWhat you’ll learn Read and parse HTML with rvest — read_html() for a live URL, minimal_html() for a string. Select nodes with CSS selectors — by tag, .class, #id, and descendant — using html_element() (one) and html_elements() (many). Extract data — clean text with html_text2(), attributes (l...

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TipWhat you’ll find here Why a heatmap in alphabetical or arbitrary order hides its structure — and how reordering the rows and columns makes the pattern appear. Seriation in one idea: find the linear order of objects that puts similar things next to each other, so blocks land on the diagonal. The core workflow with the ...

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TipWhat you’ll learn Plot every column of a data frame at once — one panel per variable in a single ggplot() call, instead of writing one plot per column by hand. The scalable recipe: reshape wide to long with tidyr::pivot_longer(), then ggplot2::facet_wrap(~ variable, scales = "free") to give each vari...

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