{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2025-12-14T01:33:56.000Z","description":"Problems submitted by members of the MATLAB Central community.","is_default":true,"created_by":161519,"badge_id":null,"featured":false,"trending":false,"solution_count_in_trending_period":0,"trending_last_calculated":"2025-12-14T00:00:00.000Z","image_id":null,"published":true,"community_created":false,"status_id":2,"is_default_group_for_player":false,"deleted_by":null,"deleted_at":null,"restored_by":null,"restored_at":null,"description_opc":null,"description_html":null,"published_at":null},"problems":[{"id":49342,"title":"Classification metrics","description":null,"description_html":"\u003cdiv style = \"text-align: start; line-height: 20.44px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: none solid rgb(0, 0, 0); white-space: normal; \"\u003e\u003cdiv style=\"block-size: 42px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 343px 21px; transform-origin: 343px 21px; vertical-align: baseline; \"\u003e\u003cdiv style=\"font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 320px 21px; text-align: left; transform-origin: 320px 21px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; \"\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 0px 0px; transform-origin: 0px 0px; \"\u003e\u003cspan style=\"\"\u003eCalculate Accuracy, Precission and Recall given confusion matrix values. Round all the results to the 4th decimal.\u003c/span\u003e\u003c/span\u003e\u003c/div\u003e\u003c/div\u003e\u003c/div\u003e","function_template":"function [acc,prec,rec] = clasMetrics(tp,tn,fp,fn)\r\n    y = x;\r\nend","test_suite":"%%\r\ntp=4;\r\ntn=2;\r\nfp=5;\r\nfn=3;\r\n[acc,prec,rec] = clasMetrics(tp,tn,fp,fn);\r\nmetrics=[acc,prec,rec];\r\nassert(isequal(metrics,[0.4286,0.4444,0.5714]))\r\n%%\r\ntp=30;\r\ntn=15;\r\nfp=40;\r\nfn=52;\r\n[acc,prec,rec] = clasMetrics(tp,tn,fp,fn);\r\nmetrics=[acc,prec,rec];\r\nassert(isequal(metrics,[0.3285,0.4286,0.3659]))\r\n%%\r\ntp=70;\r\ntn=65;\r\nfp=0;\r\nfn=0;\r\n[acc,prec,rec] = clasMetrics(tp,tn,fp,fn);\r\nmetrics=[acc,prec,rec];\r\nassert(isequal(metrics,[1,1,1]))\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":0,"created_by":698530,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":29,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2020-12-23T12:29:54.000Z","updated_at":"2026-02-06T11:46:41.000Z","published_at":"2020-12-31T01:23:47.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eCalculate Accuracy, Precission and Recall given confusion matrix values. Round all the results to the 4th decimal.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\",\"relationship\":null}],\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"target\":\"/matlab/document.xml\",\"relationshipId\":\"rId1\"}]}"}],"problem_search":{"errors":[],"problems":[{"id":49342,"title":"Classification metrics","description":null,"description_html":"\u003cdiv style = \"text-align: start; line-height: 20.44px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: none solid rgb(0, 0, 0); white-space: normal; \"\u003e\u003cdiv style=\"block-size: 42px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 343px 21px; transform-origin: 343px 21px; vertical-align: baseline; \"\u003e\u003cdiv style=\"font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 320px 21px; text-align: left; transform-origin: 320px 21px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; \"\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 0px 0px; transform-origin: 0px 0px; \"\u003e\u003cspan style=\"\"\u003eCalculate Accuracy, Precission and Recall given confusion matrix values. Round all the results to the 4th decimal.\u003c/span\u003e\u003c/span\u003e\u003c/div\u003e\u003c/div\u003e\u003c/div\u003e","function_template":"function [acc,prec,rec] = clasMetrics(tp,tn,fp,fn)\r\n    y = x;\r\nend","test_suite":"%%\r\ntp=4;\r\ntn=2;\r\nfp=5;\r\nfn=3;\r\n[acc,prec,rec] = clasMetrics(tp,tn,fp,fn);\r\nmetrics=[acc,prec,rec];\r\nassert(isequal(metrics,[0.4286,0.4444,0.5714]))\r\n%%\r\ntp=30;\r\ntn=15;\r\nfp=40;\r\nfn=52;\r\n[acc,prec,rec] = clasMetrics(tp,tn,fp,fn);\r\nmetrics=[acc,prec,rec];\r\nassert(isequal(metrics,[0.3285,0.4286,0.3659]))\r\n%%\r\ntp=70;\r\ntn=65;\r\nfp=0;\r\nfn=0;\r\n[acc,prec,rec] = clasMetrics(tp,tn,fp,fn);\r\nmetrics=[acc,prec,rec];\r\nassert(isequal(metrics,[1,1,1]))\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":0,"created_by":698530,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":29,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2020-12-23T12:29:54.000Z","updated_at":"2026-02-06T11:46:41.000Z","published_at":"2020-12-31T01:23:47.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eCalculate Accuracy, Precission and Recall given confusion matrix values. Round all the results to the 4th 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