MATLAB Programming

Importing Text Data
66.8000
77.0000
ans =
45.9000
78.0000
56.7000
fclose(fid);
Importing Mixed Alphabetic and Numeric Data
If your data file contains a mix of alphabetic and numeric ASCII data, use
the textscan or textread function to import the data. textscan returns its
output in a single cell array, while textread returns its output in separate
variables and you can specify the data type of each variable. The textscan
function offers better performance than textread, making it a better choice
when reading large files.
This example uses textread to import the file mydata.dat that contains a
mix of alphabetic and numeric data:
Sally
Larry
Tommy
Type1 12.34 45 Yes
Type2 34.56 54 Yes
Type1 67.89 23 No
Note To read an ASCII data file that contains numeric data with text column
headers, see “Importing Numeric Data with Text Headers” on page 6-80.
To read the entire contents of the file mydata.dat into the workspace, specify
the name of the data file and the format string as arguments to textread. In
the format string, you include conversion specifiers that define how you want
each data item to be interpreted. For example, specify %s for string data, %f
for floating-point data, and so on. (For a complete list of format specifiers, see
the textread reference page.)
Foreachconversionspecifierinyour format string, you must specify a
separate output variable. textread processeseachdataiteminthefileas
specified in the format string and puts the value in the output variable. The
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