Question

如何在循环中更改'StartRow'和'EndRow'的值？

for k = 1:11
filename = 'file.txt';   
...

startRow = 1422; %1564, 1706, 1848, 1990, 2132, 2274, 2416, 2558, 2700, 2842 
endRow = 1562; %1704, 1846, 1988, 2130, 2272, 2414, 2556, 2698, 2840, 2982
... 

f=figure;
plot(...);

saveas(f,sprintf('fig%d.png',k));

端

Answer 1

您可以将startRow和endRow的所有值存储在for循环之前的列表中，然后遍历列表以更改循环内这些变量的值。

startRowList = [1422, 1564, 1706, 1848, 1990, 2132, 2274, 2416, 2558, 2700, 2842];
endRowList = [1562, 1704, 1846, 1988, 2130, 2272, 2414, 2556, 2698, 2840, 2982];

for k = 1:11
    filename = 'file.txt';   
    ...

    startRow = startRowList(k);
    endRow = endRowList(k);
    ... 

    f=figure;
    plot(...);

    saveas(f,sprintf('fig%d.png',k));
end

Answer 2

将startRow和endRow保持在循环之外，并使用循环索引在循环内调用它们。

startRow = [1422 1564, 1706, 1848, 1990, 2132, 2274, 2416, 2558, 2700, 2842] ;
endRow = [1562 1704, 1846, 1988, 2130, 2272, 2414, 2556, 2698, 2840, 2982];
n = length(startRow) ;
for k = 1:n
    filename = 'file.txt';
    thestart = startRow(k) ;
    theend = endRow(k) ;
    ...

...

f=figure;
plot(...);

saveas(f,sprintf('fig%d.png',k));
end

Answer 3

WHERE `company_id` = 1
AND (
    `firstname` LIKE '%?%'
    OR `lastname` LIKE '%?%'
)

在MATLAB中更改循环内部的变量值

3 个答案: