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Chapter: 9 / Q: 3.9
A spreadsheet popdata.xlsx stores the population every 20 years for a small town that underwent a boom and then decline. Create this spreadsheet (include the header row) and then read the headers into a cell array and the numbers into a matrix
Chapter: 9 / Q: 4.9
Create a multiplication table and write it to a spreadsheet
Chapter: 9 / Q: 5.9
Read numbers from any spreadsheet file, and write the variable to a MAT-file
Chapter: 9 / Q: 6.9
Clear out any variables that you have in your Command Window. Create a matrix variable and two vector variables
Chapter: 9 / Q: 7.9
Create a set of random matrix variables with descriptive names (e.g. ran2by2int, ran3by3double, etc.) for use when testing matrix functions. Store all of these in a MAT-file
Chapter: 9 / Q: 8.9
What is the difference between a data file and a MAT-file?
Chapter: 9 / Q: 9.9
Write a script that will prompt the user for the name of a file from which to read. Loop to error-check until the user enters a valid filename that can be opened
Chapter: 9 / Q: 10.9
A file “potfilenames.dat” stores potential file names, one per line. The names do not have any extension. Write a script that will print the names of the valid files, once the extension “.dat” has been added
Chapter: 9 / Q: 11.9
A set of data files named “exfile1.dat”, “exfile2.dat”, etc. has been created by a series of experiments. It is not known exactly how many there are, but the files are numbered sequentially with integers beginning with 1
Chapter: 9 / Q: 12.9
Write a script that will read from a file x and y data points in the following format:
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