Recently Published
WEB Sponges UK
This table will provide a quick run-down of all 192 species of sponge that have been found in rockpools across the UK, and show you which are the most common. For this table we have used records from the National Biodiversity Network (NBN) and iNaturalist.
Lapiz y papel vs lapiz y tableta difgital
Lapiz y papel vs lapiz y tableta difgital
Lerneinheit 3: Vergleiche von mehr als 2 Gruppen für unabhängige Stichproben
ANOVA/Kruskal-Wallis-Test
Data Preprocessing in R: Handling Missing Values, Duplicates, and Outliers
Laporan praktikum mengenai data preprocessing di R yang mencakup deteksi dan penanganan missing values, data duplikat, outlier, serta inkonsistensi data.
This project demonstrates a data preprocessing workflow in R, including missing value handling, duplicate detection, outlier treatment, and data consistency checks.
Model Survival dalam Matematika Aktuaria: Implementasi Menggunakan Software R
Memahami dan mempraktikkan Model Survival pada buku "Matematika Aktuaria dengan Software R" karya Adhitya Ronnie Effendie (Gadjah Mada University Press, 2018). Dokumen ini menyajikan konsep-konsep dasar model survival dalam aktuaria beserta penerapan praktis menggunakan software R.
Cakupan Materi:
1. Fungsi Survival.
2. Laju Kematian.
3. Harapan Hidup.
4. Peluang Kematian Tertunda.
5. Median Sisa Usia.
IRIS Farification
The famous Iris dataset isn't FAIR—it's just a CSV. No persistent IDs, no ontology links, no provenance, no license. This proof-of-concept fixes that in an afternoon using Airtable and R. We structure the data relationally with taxonomic metadata (NCBI Taxonomy) and measurement ontologies (Plant Ontology), then auto-generate JSON-LD that meets all four FAIR principles. Each of 150 records gets a unique identifier and machine-readable semantics. The approach scales to clinical trials, genomics, or any tabular data. Code included. No enterprise tools required.
Some Tricks for Choosing Investment Performance Measures
An exploration of ROI, log-returns, and cash-flow adjustments, showing why logarithmic measures offer better comparability and how to treat long and short positions correctly in vectorized backtesting.