{"id":20255,"date":"2022-11-09T04:33:42","date_gmt":"2022-11-08T23:03:42","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-detect-the-position-of-a-pattern-of-numbers-in-a-matrix-in-r-closed\/"},"modified":"2022-11-09T04:33:42","modified_gmt":"2022-11-08T23:03:42","slug":"solved-detect-the-position-of-a-pattern-of-numbers-in-a-matrix-in-r-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-detect-the-position-of-a-pattern-of-numbers-in-a-matrix-in-r-closed\/","title":{"rendered":"[Solved] Detect the position of a pattern of numbers in a matrix in R [closed]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-24389542\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"24389542\" data-parentid=\"24387992\" data-score=\"0\" data-position-on-page=\"2\" data-highest-scored=\"0\" data-question-has-accepted-highest-score=\"0\" itemprop=\"suggestedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>According to your new rules, may be this helps:<\/p>\n<pre><code>data1 &lt;- data\n#changing some elements to test the code\ndata1[2,8] &lt;-2 \ndata1[4,1] &lt;- 1\n\n##The code is for the row\n\nindx &lt;- which(t(sapply(split(data1 == pattern, row(data1)), {\nfunction(x) colSums(sapply(1:(length(x) - 3), function(i) x[seq(i, i + 3)]), \n    na.rm = TRUE) == 4\n})), arr.ind = TRUE)\nindx\n# row col\n# 3   3   1\n#3   3   2\n#4   4   2\n#3   3   3\n#4   4   3\n#3   3   4\n#3   3   5\n#3   3   6\n#3   3   7\n#3   3   8\n#3   3   9\n#3   3  10\n#3   3  11\n<\/code><\/pre>\n<p>A correction in previous code for colwise operation<\/p>\n<pre><code> which(apply(pattern==data, 2, function(x){if(all(!is.na(x) &amp; x)) x else rep(FALSE, 4)}),arr.ind=TRUE)\n<\/code><\/pre>\n<p>Changing the pattern to 1<\/p>\n<pre><code> pattern &lt;- rep(1,4)\n  which(apply(pattern==data, 2, function(x){if(all(!is.na(x) &amp; x)) x else rep(FALSE, 4)}),arr.ind=TRUE)\n #row col\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">0<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Detect the position of a pattern of numbers in a matrix in R [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] According to your new rules, may be this helps: data1 &lt;- data #changing some elements to test the code data1[2,8] &lt;-2 data1[4,1] &lt;- 1 ##The code is for the row indx &lt;- which(t(sapply(split(data1 == pattern, row(data1)), { function(x) colSums(sapply(1:(length(x) &#8211; 3), function(i) x[seq(i, i + 3)]), na.rm = TRUE) == 4 })), arr.ind = &#8230; <a title=\"[Solved] Detect the position of a pattern of numbers in a matrix in R [closed]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-detect-the-position-of-a-pattern-of-numbers-in-a-matrix-in-r-closed\/\" aria-label=\"More on [Solved] Detect the position of a pattern of numbers in a matrix in R [closed]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[4023,2420,321],"class_list":["post-20255","post","type-post","status-publish","format-standard","hentry","category-solved","tag-detection","tag-pattern-matching","tag-r"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Detect the position of a pattern of numbers in a matrix in R [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-detect-the-position-of-a-pattern-of-numbers-in-a-matrix-in-r-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Detect the position of a pattern of numbers in a matrix in R [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] According to your new rules, may be this helps: data1 &lt;- data #changing some elements to test the code data1[2,8] &lt;-2 data1[4,1] &lt;- 1 ##The code is for the row indx &lt;- which(t(sapply(split(data1 == pattern, row(data1)), { function(x) colSums(sapply(1:(length(x) - 3), function(i) x[seq(i, i + 3)]), na.rm = TRUE) == 4 })), arr.ind = ... 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