MATLAB: How to set an upper and lower limit on a data set from a matrix

matrices

I need to set an upper and lower limit on the numbers in a data set that belongs to a matrix.

How would I go about doing this?

Best Answer

at_least = -5.1234;   %for example

at_most = 308.42;     %for example
new_matrix = min(max(YourMatrix, at_least), at_most);

Now new_matrix has had every value less than at_least replaced with at_least, and every value greater than at_most replaced with at_most.

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MATLAB: Transfer certain rows of a text file into a new text file

This will probably do what you want:

content = fileread('samplefile.txt');
linestocopy = regexp(content, '^([^|]*\|){4}~\|.*$', 'match', 'dotexceptnewline', 'lineanchors');
newfile = fopen('copiedlines.txt', 'wt');
fprintf(newfile, strjoin(linestocopy, '\n'));
fclose(newfile);

It uses a regular expression to find all the lines that start by (any number of characters but | followed by | ) repeated four times, followed by ~|, then anything up to the end of the line.

MATLAB: Cannot Read data from text file

FileID = fopen('data.txt','r');
C = textscan(FileID,'%s %f %f','HeaderLines',1,'Delimiter',',');
fclose(FileID);
C{1}
C{2}
C{3}

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MATLAB: Transfer certain rows of a text file into a new text file

MATLAB: Cannot Read data from text file

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