在MATLAB中对多行执行字符串拆分 [英] Do a string split for more than one row in MATLAB

问题描述

我写了一个for循环，用于沿着它们所在的每一列相应地拆分5000行。

I have written a for loop in which to split 5000 rows accordingly along each of the columns that they are in.

包含这些行的单元格数组示例：

Example of the cell array that contains those rows:

从这张照片，我想分开每一行相应的行从第一列到结束的那一行的相应列。

From that picture, i would like to split each row accordingly along their respective columns of that row starting from the first column to the end.

这是我的代码写为：

for i = pdbindex(:,1)

    clean_pdb = regexprep(pdbindex, ':', ' '); % removes the colon (:) from the array and replaces it with a whitespace
    pdb2char = char(clean_pdb); % converts the cell array into a character array
    pdb2split = strsplit(pdb2char, ' '); % does a split based on the character array followed by a delimiter, which is the white space

end

我使用正则表达式替换冒号（:)，用空格。但是，它抛出一个错误，说明输入字符串必须有一行。。我不知道如何解决这个问题。

I have used Regular Expressions to replace the colons (:), with a whitespace. However, it is throwing me an error stating Input strings must have one row.. I don't know how to solve this.

请指教。

推荐答案

我会这样做：

%Some sample data
data = {'1 : 2  :  3 :4: 5: 6';'7 :8 : 9: 10 :11 :12'};

根据分隔符划分所有行（分隔符是空格和： ）

The Divide all the rows based on delimiters (a delimiter is any combinations of white space and ":")

splitData = regexp(data,'[\s\:]*','split')

现在您的拆分数据可以读取为

Now your split data can be read out as

example = splitData{row}{column};

很可能你想将它转换为数字（不是字符串）。您可以这样一次执行一行：

Most likely you will want to convert this to numbers (not strings). You can do this one row at a time like this:

numericRow = num2double(splitData{rowNumber});

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