在Matlab中读取文本文件(数据传输) [英] Read text file in matlab (data trancation)

问题描述

我正在读取matlab中的文本文件.这是代码

I am reading a text file in matlab . Here is the code

allData = textread(file', '%s', 'delimiter', '\n');

numericalArray = cellfun(@(s) sscanf(s,'%f').' ,allData, 'un', 0);
% Get Header
header = allData(cellfun('isempty',numericalArray));
% Get Data
data = vertcat(numericalArray{:});

这是示例文本文件

head1 head2
760.00 0.3724127064860939

输出:

 data(1,:)

ans =

  760.0000    0.3724

第二列的值被截断了，但是我想得到0.3724127064860939

the second column value is truncated however, I want to get 0.3724127064860939

推荐答案

有多种方式读取此类数据(以空格分隔).在所有方法中，都保留精度.

There are various ways to read this sort of data (space-delimited). In all methods precision is preserved.

假设您在demo.txt中输入了内容:

Assuming you have the input in demo.txt:

fid = fopen('demo.txt','r'); % open for reading
txt = textscan(fid,'%s','delimiter', '\n'); txt = txt{1}; % read lines and unbox
fclose(fid);

H = strsplit(txt{1},' '); % split the headers line
V = str2double(strsplit(txt{2},' '));

方法2: dlmread

R = dlmread('demo.txt',' ',1,0); % this is an example in the documentation of dlmread

方法3: readtable

T = readtable('demo.txt');

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