将CSV扫描到变量 [英] Scan CSV to variables
本文介绍了将CSV扫描到变量的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有这样的CSV(一行):
101,120,130
$如何扫描这些变量到这样: pt_num = 101
x = 120
y = 130
解决方案只需使用 csvread
:
M = csvread('filename.csv');
pt_num = M(:,1);
x = M(:,2);
y = M(:,3);
您也可以使用 textscan
列在单元格数组中:
fid = fopen('filename.csv','r');
C = textscan(fid,'%d,%n,%n');
fclose(fid);
还有 fscanf
必须重新整形数组:
fid = fopen('filename.csv','r');
M = fscanf(fid,'%d,%f,%f')
fclose(fid);
M = reshape(M,3,[])';
最后, dlmread
csvread
:
M = dlmread('filename.csv',' ,');
I have a CSV like this (one line):
101, 120, 130
How can I scan these into variables like this:
pt_num = 101
x = 120
y = 130
解决方案 Just use csvread
:
M = csvread('filename.csv');
pt_num = M(:,1);
x = M(:,2);
y = M(:,3);
You can also use textscan
to get each column in a cell array:
fid = fopen('filename.csv','r');
C = textscan(fid,'%d, %n, %n');
fclose(fid);
And there is fscanf
, but you will have to reshape the array:
fid = fopen('filename.csv','r');
M = fscanf(fid,'%d, %f, %f')
fclose(fid);
M = reshape(M,3,[])';
Finally, dlmread
, which works just like csvread
:
M = dlmread('filename.csv',',');
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