matlab textscan
时间: 2023-10-01 12:02:15 浏览: 39
The textscan function in MATLAB is used to read data from a text file and convert it into MATLAB variables. It is a powerful tool that can handle a variety of file formats and data types, including numeric, character, and date/time data.
The basic syntax for textscan is:
```
C = textscan(filename, formatSpec)
```
Here, `filename` is the name of the text file to be read and `formatSpec` is a string specifying the format of the data in the file.
For example, to read a comma-separated file containing numeric and character data, the formatSpec string might look like this:
```
formatSpec = '%f,%s';
```
This tells textscan to expect a floating-point number followed by a comma, and then a string, on each line of the file.
The output of textscan is a cell array `C` containing the data read from the file. Each element of the cell array corresponds to a column of data in the file.
For example, if the file contains two columns of data, the first numeric and the second character, the output might look like this:
```
C =
[1.0000] 'apple'
[2.0000] 'banana'
[3.0000] 'cherry'
```
In this case, `C{1}` contains the numeric data and `C{2}` contains the character data.