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All Journal Jurnal Sains Matematika dan Statistika Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA JAMBURA JOURNAL OF PROBABILITY AND STATISTICS
Brilliant, Indira Ihnu
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Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Mathematics Social Sciences

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Workshop on Visual Data Analysis with R Program Wutsqa, Dhoriva Urwatul; Kismiantini, Kismiantini; Kusumawati, Rosita; Subekti, Retno; Setiawan, Ezra Putranda; Isnaini, Bayutama; Brilliant, Indira Ihnu
Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Vol. 8 No. 2 (2024): Vol 8, No 2 (2024)
Publisher : Yogyakarta State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpmmp.v8i2.71583

Abstract

Statistics data analysis generally focuses more on mathematical procedures than visual. Visual analysis is very useful for research and this is still very limited to study at Universitas Mercu Buana Yogyakarta, so the UNY Statistics lecturer's service activity is holding visual data analysis workshop with the R program, where this program is open source and is complete for visual analysis. The material for this activity is about procedures and uses for visual data analysis, introduction to the R program, data management with the R program, visual data analysis for group descriptions and comparisons, and visual data analysis for relationships between variables. Evaluation of participants' ability to understand the material is measured through 14 questions with four Likert Scale responses. Based on 40 questionnaires, 27,86% answered "Strongly Agree", 71,96% "Agree", and 0,18% "Disagree" regarding understanding and applying visual data analysis techniques with the R program. Therefore, it can be concluded that the majority of participants could understand the workshop material and follow the training well.
Faktor-Faktor Penentu Prevalensi Stunting di Nusa Tenggara Barat: Analisis Spasial dengan Modifikasi Ketetanggaan Nastiti, Kartika Tri; Luthfi, Zalfa Jihan; Ummah, Karimatul; Brilliant, Indira Ihnu; Setiawan, Ezra Putranda
Jambura Journal of Probability and Statistics Vol 6, No 1 (2025): Jambura Journal of Probability and Statistics
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjps.v6i1.24714

Abstract

Stunting is one of the problems faced by the Indonesian population. In 2022, its prevalence in West Nusa Tenggara reached 18.5% and became the fourth highest in Indonesia. This study was conducted to identify the factors that can be used to explain the prevalence of stunting in West Nusa Tenggara using the spatial regression method.  Considering that this province consists of two separate islands, Queen's contiguity matrix was modified to consider the connections between the islands.  Based on the AIC values, the Spatial Durbin Model (SDM) becomes the best model for stunting prevalence. The research results show that the variables Human Development Index (HDI), ADHK Gross Regional Domestic Product, and the number of community health centers have a significant effect on the prevalence of stunting in West Nusa Tenggara. Of these three variables, the HDI variable has the greatest influence on reducing the prevalence of stunting in West Nusa Tenggara. The significance of the Spatial Durbin model shows that there is a spatial effect on the dependent and independent variables. 
Analisis Spasial Kualitas Air Sungai Winongo menggunakan Metode Universal Kriging Annindiya, Harsyta; ‘Ibad, Muhammad Irsyadul; Nashirah, Najla; Brilliant, Indira Ihnu; Setiawan, Ezra Putranda
Jurnal Sains Matematika dan Statistika Vol 11, No 2 (2025): JSMS Juli 2025
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jsms.v11i2.29193

Abstract

Yogyakarta merupakan salah satu kota di Jawa yang dialiri oleh dua sungai, yakni Sungai Code dan Sungai Winongo. Penelitian ini bertujuan menerapkan universal kriging guna memetakan dan menganalisis kualitas air di Sungai Winongo dengan parameter fisis berupa Total Dissolve Solid, serta parameter biokimia berupa Bakteri Coliform dan Biological Oxygen Demand. Sampel diambil pada bulan Desember 2021 di lima titik pantau yaitu Bener, Peta, Serangan, Taman Sari, dan Prapanca. Metode Universal Kriging digunakan dalam penelitian ini karena adanya trend pada data parameter yang digunakan dan tidak memenuhi asumsi stasioner. Hasil yang diperoleh adalah sungai yang memiliki Biological Oxygen Demand paling tinggi adalah di sekitar titik pantau Peta, tercemar Total Dissolve Solid paling tinggi di sekitar titik pantau Prapanca serta tercemar Bakteri Coliform paling tinggi di sekitar titik pantau Prapanca dan Taman Sari.
Workshop Inferensi Statistik dengan Pendekatan Berbasis Simulasi Kismiantini, Kismiantini; Subekti, Retno; Brilliant, Indira Ihnu; Ratnasari, Andika Putri
Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Vol. 9 No. 2 (2025): Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA
Publisher : Yogyakarta State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpmmp.v9i2.83414

Abstract

Mata kuliah Statistika umumnya lebih fokus pada prosedur inferensi bagi parameter secara teoritis dan belum memperhatikan pendekatan berbasis simulasi. Pendekatan berbasis simulasi memiliki kelebihan tanpa adanya pemenuhan asumsi klasik. Di Program Studi Matematika Universitas Nusa Cendana, materi inferensi statistik dengan pendekatan berbasis simulasi masih belum diterapkan secara optimal sehingga kelompok dosen Statistika Universitas Negeri Yogyakarta melaksanakan kegiatan workshop inferensi statistik dengan pendekatan berbasis simulasi. Evaluasi kemampuan peserta dalam memahami dan menerapkan materi yang disampaikan diukur melalui 15 butir pernyataan dengan empat respons skala Likert (sangat setuju, setuju, tidak setuju, sangat tidak setuju). Berdasarkan kuesioner hari pertama (39 peserta memberikan respons lengkap), diperoleh rata-rata 38,10% peserta menjawab "˜sangat setuju', 61,54% "˜setuju', dan 0,37% "˜tidak setuju'. Kemudian kuesioner hari kedua (20 peserta memberikan respons lengkap), diperoleh hasil rata-rata 39,38% peserta menjawab "˜sangat setuju', 58,75% "˜setuju', dan 1,88% "˜tidak setuju'. Oleh karena itu, dapat disimpulkan bahwa mayoritas peserta dapat memahami materi workshop dan mengikuti pelatihan dengan baik.
Co-Authors Annindiya, Harsyta Dhoriva Urwatul Wutsqa Ezra Putranda Setiawan Isnaini, Bayutama Kismiantini Kismiantini Luthfi, Zalfa Jihan Nashirah, Najla Nastiti, Kartika Tri Ratnasari, Andika Putri Retno Subekti Rosita Kusumawati Ummah, Karimatul ‘Ibad, Muhammad Irsyadul