{"id":991,"date":"2025-07-17T06:33:45","date_gmt":"2025-07-17T06:33:45","guid":{"rendered":"https:\/\/lspdigi.com\/blog\/?p=991"},"modified":"2025-07-17T06:33:46","modified_gmt":"2025-07-17T06:33:46","slug":"cara-membuat-correlation-matrix","status":"publish","type":"post","link":"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/","title":{"rendered":"Cara Membuat Correlation Matrix"},"content":{"rendered":"\n<p>Sebelum kita mulai membahas lebih jauh soal cara membuat correlation matrix, ada baiknya kita pahami dulu apa itu correlation matrix. <\/p>\n\n\n\n<p>Dalam dunia data, correlation matrix adalah sebuah tabel yang menunjukkan seberapa kuat hubungan antar variabel numerik. <\/p>\n\n\n\n<p>Jadi, kalau kamu punya beberapa kolom data seperti usia, pendapatan, dan lama penggunaan aplikasi, correlation matrix bisa memberitahu kamu apakah kolom-kolom itu saling berhubungan atau tidak.<\/p>\n\n\n\n<p>Biasanya, nilai korelasi ini berkisar antara -1 hingga +1. Angka +1 berarti hubungan positif sempurna, -1 artinya hubungan negatif sempurna, dan 0 berarti tidak ada hubungan sama sekali. <\/p>\n\n\n\n<p>Nah, dari sini kamu bisa menentukan apakah dua variabel saling mendukung atau justru bertolak belakang.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Simak Juga : <a href=\"https:\/\/lspdigi.com\/blog\/sertifikasi-data-analyst\/\">Sertifikasi Data Analyst<\/a><\/p>\n<\/blockquote>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#Persiapan_Dataset_yang_Tepat\" >Persiapan Dataset yang Tepat<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#1_Import_dan_Menyiapkan_Data\" >1. Import dan Menyiapkan Data<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#2_Bersihkan_dan_Validasi_Data\" >2. Bersihkan dan Validasi Data<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#Cara_Membuat_Correlation_Matrix\" >Cara Membuat Correlation Matrix<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#1_Menggunakan_Fungsi_corr_di_Pandas\" >1. Menggunakan Fungsi .corr() di Pandas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#2_Pilihan_Metode_Korelasi\" >2. Pilihan Metode Korelasi<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#Visualisasi_Correlation_Matrix\" >Visualisasi Correlation Matrix<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#1_Heatmap_dengan_Seaborn\" >1. Heatmap dengan Seaborn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#Interpretasi_Correlation_Matrix\" >Interpretasi Correlation Matrix<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#1_Kekuatan_dan_Arah_Hubungan\" >1. Kekuatan dan Arah Hubungan<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#Aplikasi_Correlation_Matrix\" >Aplikasi Correlation Matrix<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#1_Feature_Selection_untuk_Machine_Learning\" >1. Feature Selection untuk Machine Learning<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#2_Evaluasi_Strategi_Bisnis\" >2. Evaluasi Strategi Bisnis<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/lspdigi.com\/blog\/cara-membuat-correlation-matrix\/#Kesimpulan\" >Kesimpulan<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Persiapan_Dataset_yang_Tepat\"><\/span>Persiapan Dataset yang Tepat<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Sebelum kita terjun langsung ke pembuatan correlation matrix, ada beberapa hal yang perlu dipersiapkan terlebih dahulu. Yang paling penting adalah memastikan kamu punya dataset yang relevan dan bersih. Dataset idealnya memiliki kolom-kolom numerik dan jumlah baris yang cukup agar analisis korelasinya valid.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Import_dan_Menyiapkan_Data\"><\/span>1. Import dan Menyiapkan Data<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Langkah pertama tentu saja adalah mengimpor data ke dalam tools yang akan kamu gunakan. Di sini kita pakai Python dengan bantuan library pandas.<\/p>\n\n\n\n<p>import pandas as pd<\/p>\n\n\n\n<p># Load dataset<\/p>\n\n\n\n<p>df = pd.read_csv(&#8216;data.csv&#8217;)<\/p>\n\n\n\n<p>print(df.head())<\/p>\n\n\n\n<p>Pastikan kamu sudah melihat isi data agar tahu kolom mana saja yang bisa digunakan untuk analisis korelasi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Bersihkan_dan_Validasi_Data\"><\/span>2. Bersihkan dan Validasi Data<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Sebelum masuk ke cara membuat correlation matrix, penting untuk membersihkan data dari nilai yang hilang (missing values), outlier, atau data yang tidak sesuai format. <\/p>\n\n\n\n<p>Kamu bisa menggunakan metode seperti dropna() untuk menghapus data yang kosong, atau fillna() untuk mengisi data yang hilang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cara_Membuat_Correlation_Matrix\"><\/span>Cara Membuat Correlation Matrix<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Setelah data siap, sekarang kita masuk ke bagian utama, yaitu cara membuat correlation matrix.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Menggunakan_Fungsi_corr_di_Pandas\"><\/span>1. Menggunakan Fungsi .corr() di Pandas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Pandas menyediakan fungsi bawaan untuk menghitung korelasi antar kolom numerik.<\/p>\n\n\n\n<p>corr_matrix = df.corr()<\/p>\n\n\n\n<p>print(corr_matrix)<\/p>\n\n\n\n<p>Dengan kode ini, kamu akan mendapatkan sebuah tabel korelasi antara semua kolom numerik yang ada di dataset kamu. Ini adalah langkah dasar dalam memahami hubungan antar variabel.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Pilihan_Metode_Korelasi\"><\/span>2. Pilihan Metode Korelasi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Kalau kamu ingin mencoba metode lain selain Pearson (default), kamu bisa menggunakan Spearman atau Kendall.<\/p>\n\n\n\n<p>corr_spearman = df.corr(method=&#8217;spearman&#8217;)<\/p>\n\n\n\n<p>Spearman cocok digunakan jika datamu tidak terdistribusi normal atau mengandung outlier.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Visualisasi_Correlation_Matrix\"><\/span>Visualisasi Correlation Matrix<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Melihat angka-angka di correlation matrix memang informatif, tapi bisa jadi membingungkan kalau jumlah kolomnya banyak. Nah, di sinilah visualisasi berperan besar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Heatmap_dengan_Seaborn\"><\/span>1. Heatmap dengan Seaborn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Seaborn menyediakan fungsi heatmap yang sangat berguna untuk melihat pola korelasi secara visual.<\/p>\n\n\n\n<p>import seaborn as sns<\/p>\n\n\n\n<p>import matplotlib.pyplot as plt<\/p>\n\n\n\n<p>plt.figure(figsize=(10, 8))<\/p>\n\n\n\n<p>sns.heatmap(corr_matrix, annot=True, cmap=&#8217;coolwarm&#8217;)<\/p>\n\n\n\n<p>plt.title(&#8216;Correlation Matrix Heatmap&#8217;)<\/p>\n\n\n\n<p>plt.show()<\/p>\n\n\n\n<p>Dengan heatmap, kamu bisa dengan mudah melihat mana variabel yang punya hubungan kuat, sedang, atau lemah.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Interpretasi_Correlation_Matrix\"><\/span>Interpretasi Correlation Matrix<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Sudah punya correlation matrix? Bagus! Sekarang saatnya memahami apa arti dari angka-angka itu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Kekuatan_dan_Arah_Hubungan\"><\/span>1. Kekuatan dan Arah Hubungan<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Angka korelasi bisa dibaca sebagai berikut:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>0,7 sampai 1 menunjukkan hubungan kuat<\/li>\n\n\n\n<li>0,4 sampai 0,7 berarti hubungan sedang<\/li>\n\n\n\n<li>0,1 sampai 0,4 menandakan hubungan lemah<\/li>\n\n\n\n<li>Mendekati 0 artinya hampir tidak ada hubungan<\/li>\n<\/ul>\n\n\n\n<p>Jangan lupa juga memperhatikan apakah nilainya positif atau negatif. Korelasi positif berarti kedua variabel naik bersama-sama, sedangkan korelasi negatif berarti satu naik, satu turun.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Aplikasi_Correlation_Matrix\"><\/span>Aplikasi Correlation Matrix<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Correlation matrix bukan cuma alat analisis biasa, tapi bisa membantu dalam banyak hal. Mulai dari pemilihan fitur untuk machine learning hingga strategi bisnis.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Feature_Selection_untuk_Machine_Learning\"><\/span>1. Feature Selection untuk Machine Learning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Kalau dua kolom punya korelasi sangat tinggi, bisa jadi kamu hanya perlu salah satunya untuk model kamu. Ini membantu menghindari masalah multikolinearitas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Evaluasi_Strategi_Bisnis\"><\/span>2. Evaluasi Strategi Bisnis<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Misalnya kamu punya data penjualan dan promosi, dan melihat korelasi positif tinggi di antara keduanya, ini bisa jadi insight bahwa promosi memang berdampak besar pada penjualan.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Kesimpulan\"><\/span>Kesimpulan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Membuat correlation matrix itu nggak sulit, tapi punya dampak besar. Dengan memahami cara membuat correlation matrix, kamu bisa menganalisis hubungan antar variabel secara lebih efektif. <\/p>\n\n\n\n<p>Mulai dari persiapan data, pembuatan matrix dengan .corr(), hingga visualisasi dan interpretasi, semua langkah itu bisa membantu kamu mengambil keputusan yang lebih cerdas berbasis data.<\/p>\n\n\n\n<p>Jadi, yuk mulai praktik dan eksplorasi correlation matrix di dataset kamu sendiri!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sebelum kita mulai membahas lebih jauh soal cara membuat correlation matrix, ada baiknya kita pahami dulu apa itu correlation matrix. Dalam dunia data, correlation matrix adalah sebuah tabel yang menunjukkan seberapa kuat hubungan antar variabel numerik. Jadi, kalau kamu punya beberapa kolom data seperti usia, pendapatan, dan lama penggunaan aplikasi, correlation matrix bisa memberitahu kamu [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":992,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[39],"tags":[223],"class_list":["post-991","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-analyst","tag-correlation-matrix"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cara Membuat Correlation Matrix - Sertifikasi Informasi Teknologi Pilihan<\/title>\n<meta name=\"description\" content=\"Membuat correlation matrix itu nggak sulit, tapi punya dampak besar. 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