Using the iris training data on Dropbox (iris_train. csv) write a program in R to preform logistic regression (Use the sepal length and sepal width to predict the class using logistic regression/classification). Use the gradient ascent and stochastic gradient ascent approaches to preform logistic regression and compare your results with the program multinom() (package nnet) in R. Hint: For your initial guesses of the parameters make them very close (first try exactly equal to these parameters) to the actual parameters from the multinom() program, since if they are far away it will not converge.

This program reads a file called 'test. txt'. you are required to write two functions that build a wordlist out of all of the words found in the file and print all of the unique words found in the file. remove punctuations using 'string. punctuation' and 'strip()' before adding words to the wordlist. write a function build_wordlist() that takes a 'file pointer' as an argument and reads the contents, builds the wordlist after removing punctuations, and then returns the wordlist. another function find_unique() will take this wordlist as a parameter and return another wordlist comprising of all unique words found in the wordlist. example: contents of 'test. txt': test file another line in the test file output: ['another', 'file', 'in', 'line', 'test', 'the']

Use the keyword strategy to remember the meaning of the following word. the meaning for the word has been provided. write your keyword and describe the picture you would create in your mind. centurion: a commander in the army of ancient rome. keyword: picture:

Your computer running windows 10 is doing some very strange things with the operating system. you are fairly certain it is not a hardware issue. you need to try to get further insight into what is going on within the operating system. which tool would be best suited for this?