printing special ascii characters that appear as empty string in matlab [closed] - matlab

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I'm trying to print the NAK char over serial to a device. On putty, I do this with Ctrl+U. However, in matlab I don't think I'm doing this correctly. I tried:
fprintf(s,char(21))
to no avail.
in matlab, disp(char(21)) shows nothing, what should I be doing?

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Loading HDF5 with Matlab [closed]

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I need to open and visualize a binary file in HDF5 format with Matlab.
Matlab has support for hdf5 files.
To get information about the data structure stored in a specific hdf5 file you can use hdf5info function:
h5info = hdf5info('/path/to/file.hdf5');
Once you have the information, you can use it to read the data from the file unsing hdf5read:
data = hdf5read(h5info);

Show raise to power in static text Matlab [closed]

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I'm making a GUI in MATLAB. I want to know how to show/represent raise to power in static text in MATLAB.
Use the ^ character. MATLAB implemented basic TeX style formatting several years ago into text boxes, so _ is interpreted as subscript. If you actually want these symbols to appear in your text, place a \ then place your symbol after it (i.e. \_ or \^).

How to Test conditional independence between random variables using available samples? [closed]

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How can I test for the independence between two random variable given another one(i.e. whether P(A|C)=P(A|C,B) or not?) using available samples. in other words, I just have 1000 samplesf for 3 random variables generated by bntoolbox on Matlab and now I wanna test for CI between arbitrary random variables.
I've read something about Fisher's method but honestly don't understand it.
Thanks is advance.

homework: Simplify f=Σ(8,12,13,14)+dΣ(3,7,9,10) [closed]

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I was doing this question of boolean algebra, Simplify f=Σ(8,12,13,14)+dΣ(3,7,9,10) using karnaugh map.. can anyone please tell me what is d in this question? I know its a stupid question but i couldn't find it on google. And please tell me what this question means? i mean like straight away simplifying without the d expression is okay but what does the d expression signify in here ?
d stands for 'don't care'. Cells 3,7,8,10 do not affect the value of F.
This helps because you might be able to get a simpler expression if you ignore those cells.

How to load .txt file on Matlab and how to work on it? [closed]

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I'm new on Matlab. I don't know how to load .txt file end then open it to start work. The file is composed by 1 column with over 10.000 elements. I'm going to open it and then to deleted some elements, these deleted elements must be more little than a fixed value, how can I do it.
Thank you very much for your time.
Mario
Read the following part of the user guide: http://www.mathworks.co.uk/help/techdoc/import_export/br5s7ig.html
or use the MATLAB editor if you want to do it interactively:
edit(textfilename)