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All Journal Jurnal Ilmu Pertanian Indonesia Indonesian Journal of Geography Rotasi Jurnal Gaussian Journal of Tropical Soils Berkala Ilmiah Pertanian JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) AGRIVITA, Journal of Agricultural Science Jurnal Matematika dan Statistika serta Aplikasinya (Jurnal MSA) Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat BAREKENG: Jurnal Ilmu Matematika dan Terapan Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) J Statistika: Jurnal Ilmiah Teori dan Aplikasi Statistika Prima: Jurnal Pendidikan Matematika Jurnal Pengabdian Magister Pendidikan IPA Jurnal Kreativitas PKM ComTech: Computer, Mathematics and Engineering Applications Jurnal Teknologi Pertanian Andalas METIK JURNAL Jurnal Review Pendidikan dan Pengajaran (JRPP) Variance : Journal of Statistics and Its Applications Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Grouper: Jurnal Ilmiah Perikanan Jurnal Abdi Insani Jurnal Pengabdian kepada Masyarakat Nusantara Nusantara Science and Technology Proceedings JAMBURA JOURNAL OF PROBABILITY AND STATISTICS International Journal on Food, Agriculture and Natural Resources (IJFANRES) Journal La Lifesci Jurnal Pengabdian Perikanan Indonesia Jurnal Agrimanex: Agribusiness, Rural Management, and Development Extension Multica Science and Technology Idea Pengabdian Masyarakat Warisan: Journal of History and Cultural Heritage Journal of Mathematics: Theory and Applications Jurnal Pendidikan Ilmu Pengetahuan Alam (JP-IPA) Media Pertanian Journal of Applied Agricultural Science and Technology Jurnal Keperawatan Karya Bhakti Maternity and Neonatal : Jurnal Kebidanan VARIANSI: Journal of Statistics and Its Application on Teaching and Research Islam & Contemporary Issues Islamic Education Jurnal Statistika dan Komputasi (STATKOM) Innovative: Journal Of Social Science Research Basis : Jurnal Ilmiah Matematika Jurnal of Community Health Development (JCHD) Eksponensial Journal of International Multidisciplinary Research Jurnal Pengabdian Nasional (JPN) Indonesia Public Service And Governance Journal Holistik Analisis Nexus Jurnal Intelek Insan Cendikia Journal of Citizen Research and Development Jurnal Ilmiah Kesehatan IJASDS: Indonesian Journal of Applied Statistics and Data Science Jurnal Penginderaan Jauh Indonesia
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Journal : VARIANSI: Journal of Statistics and Its Application on Teaching and Research

Peramalan Jumlah Produksi Kelapa Sawit Provinsi Kalimantan Timur Menggunakan Metode Singular Spectrum Analysis Siringoringo, Meiliyani; Wahyuningsih, Sri; Purnamasari, Ika; Arumsari, Melisa
VARIANSI: Journal of Statistics and Its application on Teaching and Research Vol. 4 No. 3 (2022)
Publisher : Program Studi Statistika Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/variansiunm46

Abstract

Singular spectrum analysis (SSA) is a nonparametric method that does not rely on assumptions such as stationary nature or residual normality. SSA separates time series data into its components, which are trend, seasonality, and error (noise). This study aimed to obtain forecasting results for the amount of oil palm production in East Kalimantan Province for the period January 2021 to December 2021 using SSA. Based on the results of the data analysis, in the process of forming the forecasting model with in-sample data, the parameter window length (L) was 24, which produced a MAPE value of 0.464%, and while the forecasting model validation process used out-sample data, it produced a MAPE value of 41.172%.
PENGELOMPOKAN PROVINSI DI INDONESIA BERDASARKAN DATA JUMLAH KEJADIAN DAN DAMPAK BENCANA BANJIR MENGGUNAKAN METODE FUZZY C-MEANS Hayati, Memi Nor; Goejantoro, Rito; Siringoringo, Meiliyani; Purnamasari , Ika; Yuniarti, Desi; Nida, Khairun; Messakh, Gerald Claudio
VARIANSI: Journal of Statistics and Its application on Teaching and Research Vol. 6 No. 01 (2024)
Publisher : Program Studi Statistika Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/variansiunm167

Abstract

Cluster analysis is a technique used to find groups of similar data objects. The Fuzzy C-Means (FCM) method is a data grouping method where the existence of each data in a cluster is determined by the degree of membership. This study aims to determine the optimal number of clusters based on the Modified Partition Coefficient (MPC) validity index and to determine the optimal grouping results of 34 provinces in Indonesia based on data on the number of events and the impact of floods in 2017-2021. The optimal number of clusters using the FCM method is based on MPC value consists of 2 clusters, namely the first cluster consisting of 27 provinces in Indonesia and the second cluster consisting of 7 provinces in Indonesia.
Transformasi Wavelet Diskrit Daubechies Fungsi Soft Thresholding untuk Prediksi Data Inflasi di Indonesia Mohammad Reyfi Syahnaz Anugrah; Purnamasari, Ika; A’yun, Qonita Qurrota
VARIANSI: Journal of Statistics and Its application on Teaching and Research Vol. 6 No. 02 (2024)
Publisher : Program Studi Statistika Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/variansiunm233

Abstract

Metode prediksi klasik pada umumnya mensyaratkan data harus bersifat stasioner, akan tetapi umumnya terdapat beberapa data runtun waktu yang bersifat nonstasioner. Salah satu metode yang mampu menganalisa data non-stasioner dengan baik adalah transformasi wavelet diskrit (TWD). Estimasi thresholding dilakukan untuk menghapuskan noise pada data, dengan menggunakan fungsi dan parameter threshold yang sangat berpengaruh pada kemulusan hasil estimasi. Penelitian ini bertujuna untuk memprediksi inflasi di Indonesia pada bulan Mei 2012 hingga Desember 2022 menggunakan TWD daubechies soft thresholding dan parameter adaptive, serta mengetahui level resolusi terbaik dari perolehan nilai akurasi prediksi menggunakan Mean Absolute Percentage Error (MAPE). Hasil penelitian menunjukkan bahwa nilai prediksi baik pada level 1 sampai dengan level 5 sangat mendekati pola data aktual, dengan MAPE kurang dari 5%. Nilai MAPE terkecil yaitu 2,81% terdapat pada level resolusi pertama, dengan kategori akurasi prediksi sangat baik.
Co-Authors . Usmadi Abdillah, Moc. Reza Wahyu Adhitya Wardhono Adi Pramono, Mahasyin Adinda Dwi Saputri Agnesia Margareta Purba Agung Nugroho Puspito Agung Sih Kurnianto Agustianto, Rezky Ahmad Ilham Tanzil Al-Ghofiqi, M. Faris Alfatah, Naufal Akbar Alfian Hidayat Alima, Isna Alpida Sari ALVIANA, FIFI Alya Zahra Lirinza Amelia Tri Arsita Amelia, Pidia Anam, M Khairul Anam, M. Khairul Anggreini, Rizqi Aprilia Putri Anisa Ell Raharyani Anisah, Retno Lusmiati Anna Apriana Hidayanti Aprilianti, Rina Ari Setyawati Ariessela, Syeli Arisya Rajagukguk Arthur Frans Cesar Regar Arthur Frans Cesar Regar Aruan, Friska Fransiska Arum, Ayu Puspita Arumsari, Melisa Aryana, Ida Bagus Putu Aryati, Ayu Ashari Siregar Asrul, Annisa Aprilia Astuti, Banar Astuti, Wahyu Tri Atira, Nurul Aurela, Rosalina Diva Azimah, Siti Syariah A’yun, Qonita Qurrota Bahriah, Ayu Belia Mutiara Aprili Br Depari Brena Risky Budiman, Subhan Arif Candra Dewi Rahayu Candra Dewi Rahayu, Candra Dewi Charisma, Ilmiyatul Fitri Cindy Febrian, Berlian Ciplis Gema Qori’ah Clarissa Myra Ananta Daffa, Muhamamd Zulfiqar Damanik, Selvia Andriani Putri Damayanti, Dwi Kartika Delima br Pakpahan Denny Nurdiansyah Destria Putri, Romadhona Desty, Yola Dewi, Nina Nurmalia Dhalimunte, Sadina Yanti Dhita Dwi Yanti Dian Pratama Dinda Valicia Sipayung Dona Wahyuning Laily Dwi Adinda Dyah Ayu Savitri Elangga Sony Widiharsono Else Emilia Rumekso Endah Sih Prihatini Erlyne Nadhilah Widyaningrum Erna Hayati, Erna Ersya Kamelia Rosana Fadilah, Ayu Faisol Mas’ud Faisol Masud Faisol Mas’ud Fajar Mubarok, Fajar Fanata, Wahyu Indra Duwi Fandi Saputra Nduru Fatchur Rozci Fatmi’aturro’isah, Nurul Fauziah, Fithriyatul Feronica, Elisa Fidia Deny Tisna Amijaya Firmawati, Julvia Nurlaeli Fuquh Rahmat Shaleh Garaika Gea, Natalman Gunanti Mahasri Gunsyang, Grassella Gusti, Angger Aisyah Hadiahning Habibi, Muhammad Nizar Habsari, Humairo Dyah Puji Harifin Hasbi Mubarak Suud Hidayanty, Nurul Ilma Hotmaida Berutu Husna, Kholishotul I Wayan Suastra Ida Syamsu Roidah, Ida Syamsu Imasdiani, Imasdiani Jessica Amelia Butar Butar Joyanti Sirait Juan Carlos Ginting Juan Vito Juanda Alfario Turnip Juliartha, Made Angga Juliarto, Handy Kurniawan Juni Elfi Br Purba Kanzana, Gebina Karundeng, Franklin Peter Anton Kharisma Adi Bagaskara Khotimah, Triani Husnul Kosasih, Raditya Arya Kurniawan, Bintang Kusrahman, Nanda Yopan Kustianto, Muhammad Aldian Dwi Lailatus Sufiaah, Annisa Laily, Dona Wahyuning Leona, Agis Lia Oktavia Ika Putri Lilis Cahaya Septiana Lioni Tantri Sigiro Lubis, Rifka Ariani Lubis, salsabila Lukitaningsih Lukitaningsih Maharani br Purba Mahmuda , Siti Mangalik, Gerald Manita, Yuni Arroh Manurung, Nadya Khaterina Marpaung, Adrian Marturianus Laia Mas'ud, Faisol Maulana, Andrian Meiriati Simanjuntak Meliala, Susan Barbara Patricia Sembiring Mellfani Rhamadinda Nendra Tigara Memi Nor Hayati Messakh, Gerald Claudio Moch Saad, Moch Saad Moch Saad, S.Pi.,M.Si Moch. Reza Wahyu Abdilah Mohammad Reyfi Syahnaz Anugrah Mohammad Ubaidillah Mohd. Apryanta Sukasa Muhajir, Shafa Al Muham, Setia Esra S. Muhammad Ibnu Adani Muhammad Naufal Syafiq Purba Muhammad Wahdeni Pramana Muhammad Waldano Mukti Ali Munandar, Denna Eriani Muntalim, Muntalim Musmirani, Musmirani Mustajab, Abdullah Azam Nainggolan, Klara Minar Sari Najuah, Najuah Nariza Wanti Wulan Sari Nasution, Delila Agustina Nasution, Muhammad Ardiman Nazwa, M. Dirham Nida, Khairun Ningrum, Dewy Maulidya Novita Agresia Manik Novita Paskah Rianti Nugraha, Pratama Yuly Nugraheni, Nazila Nur Azizah, Noviani Nur Gilang Fitriana Nur Salsabilah Harahap Nurkholifah Dwi Rahayu Nurmayanti, Wiwit Pura Nurwahyuni, Atik Octavianto, Thifan Okti, Reski Dwi oya, abas Pakpahan, Ananda Dasiva Pangruruk , Thesya Atarezcha Pangruruk Parawita Dewanti Patricia SM, Susan Barbara Peperawati, Pratiwi Rita Perangin-angin, Desta Riani Br. Piliang, Putri Hasanah Prasojo, Sri Irawan Laras Pratama, Arjun Prihati, Eka Priyono, Bagus Setyo Eko Pusparani, Syafina Puspito, Agung Nugroho Putri Indah Yani Putri, Romadhona Destria Rachman, Fatya Rachmandhika, Yusuf Rafli Edelweis Turnip Raharyani, Anisa Ell Rahayu, Yuliana Fuji Rahmawati, Rahmawati Ramadhanti, Choirul Lisa Ratnasari, Tri Raunaq, Ulya Salisa Regar, Arthur FC Riska Annisyafira Ristiyana, Suci Rito Goejantoro, Rito romdiyah Romdiyah Romdiyah, Romdiyah Rony, Zahara Tussoleha Rumahorbo, Ruth Debora Saad, Moch Sabana, Sobi Safitri, Fivie Safitri, Mahardika Salman Aldo Alfaresi Salomo Martines Hutasoit Salsabila, Nur Afifah Sanjaya, Rifqi Ilman Sartika, Dian Sembiring, Santa Hoky Setiani, Fibrinika Tuta Setiyono Setiyono Setyawati, Ari Shanya Br. Bangun Sibarani, Tesa Romanti Sifriyani, Sifriyani Sihotang, Marnita Simangunsong, Winda Helena Simaremare, Elsa Manora Sinaga, Yosua Solafide Sinurat, Gabriel Joey Febriand Siringoringo, Meiliyani Sitepu, Maria Maharani Siti Khadijah Siti Khoiriyah SITI MAHMUDAH SM, Indah Chofifah Sony Junianto Sri Mulyani Sri Wahyuningsih Stevany Mbu, Margaretha Sultan Ghozi Imaduddin Suparino, Balqis Widyastuti Supriyati, Amanah Surbakti, Adriel Surya Prangga Suyitno Suyitno Syafa Nur Azizah Syafina Pusparani Syaripuddin Syaripuddin Tappil Rambe Tarigan, Gema Persada Taufik, Rahadian Falqi Tiara Ni’ammusyfah Pasaribu Tri Ratnasari Tri Wahyu Saputra Tsani, Nada Maulida Ubaidillah, Mohammad Ummi Sholikah Ummi Sholikhah Ustiawan, Arif Veronika Simbolon Vinc Jae Lestari Surbakti Wasono, Wasono Widia, Widia Wijayanto, Yagus Wijayanto Wildan Muhlison, Wildan Wiwit Pura Nurmayanti Woro Hastuti Setyantini Wulandari, Tri Suraning Yagus Wijayanto Yeremia Rivieri Yoandita Velina Aprilia Yuda Sanrico Simanullang Yudiprasetyo, Nehemia Bagas Yuki Novia Nasution, Yuki Novia Yuliana Santa Lore Purba Yuni Arroh Manita Yuniarti, Desi Yusuf Rachmandhika Zahrul Arief Intasar Zai, Diraningsih Zaky Firmansyah Maulana