{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-05-26T00:16:20.000Z","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":"2026-05-26T00:00:00.000Z","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":2407,"title":"Integer to boolean","description":"Write a general function that will create the following conversation;\r\n\r\n Input is a column vector with integers\r\n Output is a boolean matrix\r\n\r\n\r\n 1234 = 1 1 1 1\r\n 23   = 0 1 1 0\r\n 14   = 1 0 0 1\r\n 12   = 1 1 0 0 \r\n\r\nAlso study the test suite to a better understanding of the problem","description_html":"\u003cp\u003eWrite a general function that will create the following conversation;\u003c/p\u003e\u003cpre\u003e Input is a column vector with integers\r\n Output is a boolean matrix\u003c/pre\u003e\u003cpre\u003e 1234 = 1 1 1 1\r\n 23   = 0 1 1 0\r\n 14   = 1 0 0 1\r\n 12   = 1 1 0 0 \u003c/pre\u003e\u003cp\u003eAlso study the test suite to a better understanding of the problem\u003c/p\u003e","function_template":"function y = integer2boolean(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = [1234; 23; 14; 12];\r\ny_correct = [1 1 1 1; 0 1 1 0; 1 0 0 1; 1 1 0 0];\r\nassert(isequal(integer2boolean(x),y_correct))\r\n\r\n%%\r\nx = [16; 14; 23; 26; 13; 46; 56];\r\ny_correct = [1\t0\t0\t0\t0\t1\r\n1\t0\t0\t1\t0\t0\r\n0\t1\t1\t0\t0\t0\r\n0\t1\t0\t0\t0\t1\r\n1\t0\t1\t0\t0\t0\r\n0\t0\t0\t1\t0\t1\r\n0\t0\t0\t0\t1\t1];\r\nassert(isequal(integer2boolean(x),y_correct))\r\n\r\n%%\r\nx = [1234; 14; 13; 12; 34; 24];\r\ny_correct = [1\t1\t1\t1\r\n1\t0\t0\t1\r\n1\t0\t1\t0\r\n1\t1\t0\t0\r\n0\t0\t1\t1\r\n0\t1\t0\t1];\r\nassert(isequal(integer2boolean(x),y_correct))","published":true,"deleted":false,"likes_count":0,"comments_count":1,"created_by":8703,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":44,"test_suite_updated_at":"2014-07-08T23:59:05.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2014-07-08T22:26:25.000Z","updated_at":"2026-04-14T14:23:08.000Z","published_at":"2014-07-08T23:44:40.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\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\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eWrite a general function that will create the following conversation;\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[ Input is a column vector with integers\\n Output is a boolean matrix\\n\\n 1234 = 1 1 1 1\\n 23   = 0 1 1 0\\n 14   = 1 0 0 1\\n 12   = 1 1 0 0]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eAlso study the test suite to a better understanding of the problem\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"problem_search":{"problems":[{"id":2407,"title":"Integer to boolean","description":"Write a general function that will create the following conversation;\r\n\r\n Input is a column vector with integers\r\n Output is a boolean matrix\r\n\r\n\r\n 1234 = 1 1 1 1\r\n 23   = 0 1 1 0\r\n 14   = 1 0 0 1\r\n 12   = 1 1 0 0 \r\n\r\nAlso study the test suite to a better understanding of the problem","description_html":"\u003cp\u003eWrite a general function that will create the following conversation;\u003c/p\u003e\u003cpre\u003e Input is a column vector with integers\r\n Output is a boolean matrix\u003c/pre\u003e\u003cpre\u003e 1234 = 1 1 1 1\r\n 23   = 0 1 1 0\r\n 14   = 1 0 0 1\r\n 12   = 1 1 0 0 \u003c/pre\u003e\u003cp\u003eAlso study the test suite to a better understanding of the problem\u003c/p\u003e","function_template":"function y = integer2boolean(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = [1234; 23; 14; 12];\r\ny_correct = [1 1 1 1; 0 1 1 0; 1 0 0 1; 1 1 0 0];\r\nassert(isequal(integer2boolean(x),y_correct))\r\n\r\n%%\r\nx = [16; 14; 23; 26; 13; 46; 56];\r\ny_correct = [1\t0\t0\t0\t0\t1\r\n1\t0\t0\t1\t0\t0\r\n0\t1\t1\t0\t0\t0\r\n0\t1\t0\t0\t0\t1\r\n1\t0\t1\t0\t0\t0\r\n0\t0\t0\t1\t0\t1\r\n0\t0\t0\t0\t1\t1];\r\nassert(isequal(integer2boolean(x),y_correct))\r\n\r\n%%\r\nx = [1234; 14; 13; 12; 34; 24];\r\ny_correct = [1\t1\t1\t1\r\n1\t0\t0\t1\r\n1\t0\t1\t0\r\n1\t1\t0\t0\r\n0\t0\t1\t1\r\n0\t1\t0\t1];\r\nassert(isequal(integer2boolean(x),y_correct))","published":true,"deleted":false,"likes_count":0,"comments_count":1,"created_by":8703,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":44,"test_suite_updated_at":"2014-07-08T23:59:05.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2014-07-08T22:26:25.000Z","updated_at":"2026-04-14T14:23:08.000Z","published_at":"2014-07-08T23:44:40.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\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\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eWrite a general function that will create the following conversation;\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[ Input is a column vector with integers\\n Output is a boolean matrix\\n\\n 1234 = 1 1 1 1\\n 23   = 0 1 1 0\\n 14   = 1 0 0 1\\n 12   = 1 1 0 0]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eAlso study the test suite to a better understanding of the problem\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"errors":[],"facets":[[],[{"value":"medium","count":1,"selected":false}]],"term":"tag:\"boolean matrix\"","page":1,"per_page":50,"sort":"map(difficulty_value,0,0,999) asc"}}