Generate and Increment var names containing numbers and strings
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Hello,
I'd like to generate a list of variable names where the output looks as follows:
# TB1W082A
# TB1W083A
# TB1W084A
# TB1W08AA
# TB1W08BA
# TB1W08CA
# TB1W092A
# TB1W093A
# TB1W094A
# TB1W09AA
# TB1W09BA
# TB1W09CA
Here is the code I'm using:
% alph=('A':'C');
% for n1 = 8:9
for n2 = 1:3
for a = 1:3
num{n2} = ['TB1W' num2str(n1) num2str(n2+1) 'A'];
str{a} = ['TB1W' num2str(n1) alph(a) 'A'];
end
end
end
clear a alpha n1 n2
I tried creating two variables; num and str. One was meant for the numeric portion and the other for the alphabetic portion. However, this is the output I get:
num =
- TB1W092A
- TB1W093A
- TB1W094A
str =
- TB1W09AA
- TB1W09BA
- TB1W09CA
Any suggestions?
1 个评论
dpb
2014-2-13
Yeah, don't...see
for why not and how to do "the Matlab way" or if insist even the evil eval
采纳的回答
Matt Tearle
2014-2-13
编辑：Matt Tearle
2014-2-13
See dpb's comment on why creating variable names like this is a bad idea, but... assuming you have a valid reason for creating strings in such a pattern:
Firstly, how general does this need to be? The twelve strings in your example are easily done with
x = {'2';'3';'4';'A';'B';'C'};
names = [strcat('TB1W08',x);strcat('TB1W09',x)]
Slightly more generally:
pre = 'TB1W';
names = {};
for k = 7:12
names = [names;strcat([pre,num2str(k,'%02d')],x)];
end
更多回答（1 个）
Dee
2014-2-13
0 个投票
1 个评论
Matt Tearle
2014-2-13
The problem was that you were using your loop variables a and n2 as the indices to your arrays, so you are only ever assigning num{1}, num{2}, and num{3} (and ditto str). You were actually assigning them multiple times each, repeatedly overwriting them. To make your approach work, you'd need to keep an overall count variable going. Something along the lines of
k = 1;
for ...
for ...
for ...
num{k} = ...
k = k+1;
end
end
end
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