MATLAB中导入数据:importdata函数

2022-07-13 15:46:20 浏览数 (2)

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用load函数导入mat文件大家都会。可是今天我拿到一个数据,文件后缀名竟然是‘.data’。该怎么读呢?

我仅仅好用matlab界面Workspace区域的“import data”button手工导入该文件。恩,还好,竟然成功了。顺便提一下,这个“import data”button功能非常强大,连excel文件都能导入。

可是假设在脚本里怎样导入这样的非mat文件呢?

这时候就轮到“importdata”函数登场啦!

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importdata

Load data from file Syntax

importdata(filename) A = importdata(filename) A = importdata(filename, delimiter) A = importdata(filename, delimiter, nheaderlines) [A, delimiter] = importdata(…) [A, delimiter, nheaderlines] = importdata(…) […] = importdata(‘-pastespecial’, …) Description

importdata(filename) loads data from filename into the workspace.

A = importdata(filename) loads data into A.

A = importdata(filename, delimiter) interprets delimiter as the column separator in ASCII file filename.

A = importdata(filename, delimiter, nheaderlines) loads data from ASCII file filename, reading numeric data starting from line nheaderlines 1.

[A, delimiter] = importdata(…) returns the detected delimiter character for the input ASCII file.

[A, delimiter, nheaderlines] = importdata(…) returns the detected number of header lines in the input ASCII file.

[…] = importdata(‘-pastespecial’, …) loads data from the system clipboard rather than from a file.

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这个函数能够支持的文件格式有:MAT文件,ASCII files和Spreadsheets,images, Audio files

这个ASCII files和Spreadsheets指的是:For ASCII files, data contains a double array. Other fields contain cell arrays. For spreadsheets, each field contains a struct, with one field for each worksheet.

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