I need help with this MATLAB question

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For this, you will write Matlab program that will do the following:

Use a pop-up dialog to query the user for the name of a text file.
Read a matrix of numbers from the file into your program. This data will be arranged so that each column corresponds to a "subject", and each row to some experimental "data" about that subject taken over multiple days.
Print out the raw data to the console.
Make a plot containing two subplots(one above the other in a single figure window):

-Subplot 1: plot the raw data for each user against time in a single plot.

- Subplot 2: plot the mean and standard deviation over all users against time

- Label the axes on all plots(including the plots below)

Using for loops, remove all negative data(specifically, set any negative data to zero)
Print out the altered data to the console
Make a second plot with the same description as the first using the modified data.
Confirm with the user using a pop-up dialog before closing all figures.

You must follow the requirements below to make automated grading possible:

Use the provided Matlab functions get_infilename() and load_if_possible(), and call confirm_dialog() before closing your figures.
Use disp() to show raw data (where it says "print out the data to the console").
First plot must be figure(1)
Second plot must be figure(2).
Use Matlab's default fonts, colors,linestyles, and all other plot properties.
Do not use call any other Matlab functions that create dialogs or in any other way prompt the user for input(for example: dialog, pause,listdlg).