Question

Homework 02 - Vectors, Strings, and Masking Function Name: badWeatherman Inputs: 1. (logical) Vector of suspect #1's answers to a lie detector (logical) Vector of suspect #2's answers to a lie detector (logical) Vector of suspect #3's answers to a lie detector (logical) Vector of suspect #4's answers to a lie detector 2" 3. 4. Outputs 1. (char) Sentence stating which suspect stole the fruit Banned Functions: isequal (, isequaln( Background Oh no, there has been a death at the studio! The lead newscaster has been killed and a few weather-men and weather-women are the lead suspects. You decide to ask each of the suspects a set of yes or no questions. Once you have the information, you use the power of MATLAB to find the one suspect who differed from the rest Function Description Each input to the function is a logical vector corresponding to the answers a suspect gives on the questionnaire. Each element of the vectors represent a different question. Three of the suspects will have the exact same answers, but one suspect's answers will be slightly-or completely-different than the others' answers. Using your knowledge of logical indexing and masking, determine which of the four suspects is lying, and thus, is the murderer The output string will be of the form 'Suspect #«num» is guilty. ' , where <num> corresponds to the suspect number who killed the newscaster. The number is determined by the input order Notes: . The suspect who lied, and stole the fruit, will have at least one answer that is different from the other suspects' answers, but could differ up to every answer . You may not use the isequal() function to code this problem. Use of the isequal() function will result in zero credit for this problem. However, the use of isequal() to check that your output matches the solution outputs is encouraged The output string ends with a period. Do not forget that period!

Thank you for your help!

Answer 1

1 function outputstring-fruitThief(T1, T2,T3,T4) 2 %To check whehter the #1 is thief or not 4 r11-(T1(:,1)T2(:,1)) && (T20:,1)--T3:,1)) && (T30:,1)-T40:,1)); 7 10 12 13 14 15 %To check whehter the #2 is thief or not 16 17 18 19 20 21 23 24 25 26 %To check whehter the #3 is thief or not 27 28 29 r31-(T1(:,1)--T2(:,1)) && (T20:,1)--T4C:,1)) && (T3(:,1)T40:,1)); 30 32 35 36 37 38 %To check whehter the #43 is thief or not 39 r41-(T1(:,1)--T2(:,1)) && (T20:,1)--T3:,1)) && (T3(:,1)T40:,1)); 41 42

45 47 50 %Determine the thief using m 51 52 Km will have 1 ith place, where #1 is the thief 53 54 %Example: if m is [0 1 0 0], #2 is the thief 56 m- Cr11 r12 r13 I r14) 58 (r21 I r22 II r23 II r24 ) 59 60 C r31 r32 r33 I r34) 62 (r41 I r42 I r43 I1 r44) ]; 63 64 Make the output string where find(m-1) returns the row number. 65 67 %That is , thief number 68 69 outputstring-C Suspect #',num2str(find(m--1)),' is the fruit thief. '); 70 71 end 72 73 %ThiefTester.m 74 75 %Call fruitThief fucntion 76 77 Thief-fruitThief([1 10 1], [0 0 0 1], 01 1 0 1], 01 1 0 1]) 78 79 %Call fruitThief fucntion 80

81 Thief-fruitThief([1 1 1 1],01 1 0 1],01 1 0 1],01 1 0 11) 82 83 %Call fruitThief fucntion 84 85 Thief-fruitThief(C1 1 0 1], 01 1 0 1], 01 1 1 1], [1 1 0 1]) 86 87 %Call fruitThief fucntion 89 Thief-fruitThief(1 1 0 1], 01 1 0 1],01 1 0 1],0 0 0 1]) 90 91

Output

Sample output: 8Call fruitThief fucntion Thief-fruitThief (1 1 0 1], [0 0 0 1],1 1 0 1], [1 1 0 1]) %Call fruitThief fucntion Thief-fruitThief (1 11 1], 1 1 0 1, [1 10 1], [1 1 0 1]) %Call fruitThief fucntion Thief-fruitThief (1 1 0 1], 1 1 01, [1 1 1 1], [1 1 0 1) %Call fruitThief fucntion Thief-fruitThief ([1 1 0 1], [1 1 0 1, [1 1 0 1],[0 0 0 1]) ThiefTester Thief- suspect #2 is the fruit thief.' Thief 'suspect #1 is the fruit thief.' Thief- suspect #3 is the fruit thief.' Thief = suspect #4 is the fruit thief.'