Help MATLAB strings..Sorry about the lenght of the questions.. Function Name: te
ID: 3562570 • Letter: H
Question
Help MATLAB strings..Sorry about the lenght of the questions..
Function Name: textStretch
%
% Inputs (4): - (char) A string representing a phrase
% - (char) A string representing a word
% - (char) A character representing a letter
% - (double) A stretch factor
%
% Outputs (1): - (char) A string representing the phrase that has been
% infused with flirtation/elation/annoyance/sarcasm
%
% Function Description:
% It's often hard to express emotions such as flirtation, elation,
% annoyance, and especially sarcasm through written means of
% communication, such as texting, tweeting, or instant messaging. In
% an attempt to circumvent this limitation, word lengthening has become a
% common phenomenon in informal written language, especially in teens.
%
% Given a phrase, a word, a letter, and a stretch factor, write a
% function that identifies the letter in the word in the phrase and
% stretches it by the factor and returns the same phrase, but with the
% modified word infused with emotion. For example, run some of the test
% cases below with the given solution file.
%
% Notes:
% - the letter given is guaranteed to appear only once in the given word
% - the string representing the word is guaranteed to appear only once in
% the phrase. For example, if the string was 'bag', any word with 'bag',
% such as 'baggage' or 'eyebag' will not appear in the phrase.
%
% Hints:
% - the ones() function might be useful
% - the strfind() functions might be useful
% - remember concatenation concepts
%
% Test Cases:
%
% phrase1 = 'this homework is so hard';
% word1 = 'so';
% letter1 = 'o';
% factor1 = 5;
% out1 = textStretch(phrase1,word1,letter1,factor1);
% out1 => 'this homework is sooooo hard'
%
% phrase2 = 'hey I need help with my homework';
% word2 = 'hey';
% letter2 = 'y';
% factor2 = 3;
% out2 = textStretch(phrase2,word2,letter2,factor2)
% out2 => 'heyyy I need help with my homework'
%
% phrase3 = 'shut the front door';
% word3 = 'front';
% letter3 = 'f';
% factor3 = 4;
% out3 = textStretch(phrase3,word3,letter3,factor3)
% out3 => 'shut the ffffront door'
%
% Note: IF THE FORMAT OF YOUR OUTPUT STRING IS NOT EXACTLY RIGHT THEN
% YOU WILL RECEIVE ZERO CREDIT FOR THIS PROBLEM. So make sure you
% have no typos, that you include all the correct punctuation, and
% that you don't have an extra space character on the end that you
% can't see.
%
%==========================================================================
% PROBLEM 3. 2nd graders wrtite matlab these days? Wow...
%--------------------------------------------------------------------------
%
% Function Name: piglatin
%
% Inputs (1): - (char) A string of two nouns separated by a space.
%
% Outputs (1): - (char) A cryptic sentence to confuse your 2nd grade
% teacher.
%
% Function Description:
% Let's imagine for a second that you're 7 years old again, and have just
% discovered the wonders of pig-latin and using it to confuse your
% teachers. So naturally (since this is CS 1371), you're going to write a
% matlab function to do this for you!
%
% Write a matlab function that takes in a string of two random nouns,
% separated by a space. These two nouns are the answers to two questions
% that your teacher has asked you: the first is your favorite thing in
% the world, and your second is your least favorite thing in the world.
% (Because those are the kinds of things teachers ask you in 2nd grade,
% after all.) So your function will need to convert the inputted words to
% pig latin, and then print them into a sentence that you can then read
% to your teacher.
%
% An explanation of pig latin: a word in pig latin has its first sound
% removed (ex: "taco" becomes "aco" when you remove the T sound), and
% then this first sound is used with 'ay' after it, and hyphenated to the
% end of the word-without-its-first-sound.
%
% example table: Original Word | Pig Latined Word
% ----------------------------------
% Matlab | Atlab-May
% Computer | Omputer-Cay
% Transfer | Ansfer-Tray
% Through | Ough-Thray
%
% Notice that it is not always a matter of taking the first letter off of
% the original word, but taking all the letters up to the first vowel.
%
% Then, once you have figured out the whole pig-latin thing, it's time to
% actually answer the question your teacher asked you. To do this, simply
% print the two words into a string as such:
%
% 'My most favorite thing in the world is _____, but I hate _____!'
%
% Where the underscores represent where you should put the pig-latin-ed
% words. Make the pig-latin-ed words all lowercase, and do not use any
% spaces in them.
%
% Example:
%
% input: 'Cliffs Totalitarianism'
%
% output: 'My most favorite thing in the world is iffs-clay, but I
% hate otalitarianism-tay!'
%
% Notes:
% - There are no spaces between the hyphen and words in the pig latin
% phrase.
% - The input words will always be seperated by a single space.
% - The letter Y will always be considered a consonant for this problem
% (even if that is not gramatically correct).
% - Always use the first vowel rule, even if the word is something like
% "physics". This should become "ics-physay". (Notice that Y was treated
% as a consonant)
% - You may assume your inputted words will not start with a vowel.
%
% Hints:
% - strtok() will be useful.
%
%
% Test Cases:
%
% edited1 = piglatin('pictures frames')
% edited1 => 'My most favorite thing in the world is ictures-pay,
% but I hate ames-fray!'
%
% edited2 = piglatin('raspberry blackberries')
% edited2 => 'My most favorite thing in the world is
% aspberry-ray, but I hate ackberries-blay!'
%
% edited3 = piglatin('Physics september')
% edited3 => 'My most favorite thing in the world is ics-physay,
% but I hate eptember-say!'
%
% Note: IF THE FORMAT OF YOUR OUTPUT STRING IS NOT EXACTLY RIGHT THEN
% YOU WILL RECEIVE ZERO CREDIT FOR THIS PROBLEM. So make sure you
% have no typos, that you include all the correct punctuation, and
% that you don't have an extra space character on the end that you
% can't see.
%
%==========================================================================
% PROBLEM 4. 'Matlab' is worth 10
%--------------------------------------------------------------------------
%
% Function Name: scrabble
%
% Inputs (2): - (char) A string of the word played in scrabble, with score
% multiplier symbols.
% - (double) A 1x26 vector of letter point values.
%
% Outputs (1): - (double) The score that the word earned.
%
% Function Description:
% Write a function called "scrabble" that takes inputs of the word
% played in scrabble and a vector of all letter point values in scrabble,
% and outputs the score that the word would earn. In the string of the
% word played, there will be multiplier symbols that correspond to
% "double word score" and "double letter score" spaces.
%
% The score multiplier symbols, which are a pound symbol (#) and an
% exclamation point (!), indicate that the letter immediately preceding
% the symbol in the input string was played on either a "double word
% score" space or a "double letter score" space. An exclamation point
% means a "double word score", whereas a pound symbol mean a "double
% letter score space". What this means for you is that any letter with a
% pound symbol after it needs to be counted twice, and that the entire
% word's score needs to be multiplied by 2 for every exclamation point in
% the string.
%
% Example: If you input was 'Hel#lo!', then the first 'l' was played on a
% double letter score space, and the final 'o' was played on a
% double word score space. The output score would be 18.
%
% The 2nd input will always be the same, and it is a 1x26 vector of the
% letter point values in the alphabet. For example, the 8th index of this
% vector is the number 8, which is how many points the letter J is worth
% in scrabble (and J is the 8th letter in the alphabet).
%
% All you have to do is add up the points of all the letters played in
% the word, account for any score multiplers, and then output your the
% score.
%
% Notes:
% - Any multiplication done to the final score by "double word" spaces
% should be done after the "double letter" spaces have been added into
% the score.
% - "Double word" space multiplication should compound on itself. As in,
% if there are three "double word" spaces in the word, then the score
% should be doubled three times (or multiplied by 8).
% - Your input is allowed to have both upper and lowercase letters. This
% does not effect how many points each letter is worth.
%
% Hints:
% - sum() and strfind() could be useful.
%
% Test Cases:
%
% load('letterPoints.mat')
%
% score1 = scrabble('MATLAB', letterPoints)
% score1 => 10
%
% score2 = scrabble('Ramblin!gwreck', letterPoints)
% score2 => 54
%
% score3 = scrabble('Q#uar!tz#ifer#ous!', letterPoints)
% score3 => 220
%
%==========================================================================
% PROBLEM 5. EXTRA CREDIT EXTRA CREDIT EXTRA CREDIT EXTRA CREDIT
%--------------------------------------------------------------------------
%
% Function Name: caesarWrapCase
%
% Inputs (2): - (char) Some string that needs to be encoded.
% - (double) An integer of how far to shift.
%
% Outputs (1): - (char) The inputted string encoded with a caesar shift.
%
% Caeser Cipher Information:
% The Caesar cipher is named after Julius Caesar, who, according to
% Suetonius, used it with a shift of three to protect messages of
% military significance. It is unknown how effective the Caesar cipher
% was at the time, but it is likely to have been reasonably secure
% because most of Caesar's enemies would have been illiterate and
% others would have assumed that the messages were written in an unknown
% foreign language.
%
% Caesar ciphers can still be found today in children's toys such as
% secret decoder rings. A Caesar shift of thirteen is also performed in
% the ROT13 algorithm, a simple method often used to obscure text such as
% joke punchlines and spoilers online.
%
% In the Caesar cipher, each letter is shifted by the specified amount.
% For example, if the shift is 3, then the letter 'a' would be coded as
% the letter 'd'.
%
% Function Description:
% Write a function that inputs a string and how far it needs to be
% shifted, and performs the caesar shift. Only letters should be shifted
% (as in, punctuation and space characters should not be changed). When a
% letter goes beyond the alphabet from the shift performed, you will need
% to make it wrap back around. What this means is that if the letter 'y'
% is shifted by 4, it will need to wrap back around to 'C'. However,
% letters for this variation of the caesar problem will need to change
% case when they wrap back around. As in, lowercase letters will become
% uppercase if they go past 'z', and uppercase letters will become
% lowercase if they go past 'Z'. A letter is allowed to change case more
% than once if it experiences a shift more than 26.
%
% Example: Original Letter | Shift | New Letter
% ------------------------------------
% 'x' | 9 | 'G'
% 'a' | -4 | 'W'
% 'Z' | 3 | 'c'
% 'a' | 26 | 'A'
%
% Notes:
% - The Caesar cipher should work for both positive and negative integers
% that indicate the shift given by the second input.
% - Shifts may be positive or negative, and may have any value.
%
% Hints:
% - The mod() function may be useful.
%
% Test Cases:
%
% coded1 = caesarWrapCase('Thank you Mario!', 4)
% coded1 => 'Xlero Csy Qevms!'
%
% coded2 = caesarWrapCase('Iba vby Wypujlzz pz pu huvaoly jhzasl!', 19)
% coded2 => 'but OuR pRINCESS IS IN ANOtHER CAStLE!'
%
% coded3 = caesarWrapCase('Uh, why isn''t this cipher working?', 52)
% coded3 => 'Uh, why isn't this cipher working?'
%
% Note: IF THE FORMAT OF YOUR OUTPUT STRING IS NOT EXACTLY RIGHT THEN
% YOU WILL RECEIVE ZERO CREDIT FOR THIS PROBLEM. So make sure you
% have no typos, that you include all the correct punctuation, and
% that you don't have an extra space character on the end that you
% can't see.
Explanation / Answer
//---Inside mexFunction--- //Declarations mxArray *xData; double *xValues; int i,j; int rowLen, colLen; double avg; //Copy input pointer x xData = prhs[0]; //Get matrix x xValues = mxGetPr(xData); rowLen = mxGetN(xData); colLen = mxGetM(xData); //Print the integer avg of each col to matlab console for(i=0;iRelated Questions
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