Duplicate names in one cell column

hsi
2013 10 15
2 个回答
更新时间：2013 10 16
1 次查看（30 天）

0 个投票

Hi,
I have a cell that contain several columns among them one text column (e.g., Person names). How can I check that the there is no duplicate names inside this column (If there is a duplicate names just assign duplicateName=true).
Thanks

请先登录，再回答此问题。

回答（2 个）

Yatin
Yatin 2013-10-15

0 个投票

Hi,
You can use the " hist " functions and the unique functions to determine if there are any duplicate values in your columns. Below is a sample code snippet:
arr = [5 3 1 5 6];
u = unique(arr);
n = hist(arr, u);
result = arr(n > 1);
Hope this helps.
Jan
Jan 2013-10-15
编辑：Jan 2013-10-16

0 个投票

duplicateName = (numel(unique(C(:, index))) == size(C, 1))
[EDITED: Parenthesis fixed]

2 个评论
显示 无 隐藏 无

hsi
hsi 2013-10-15
Thanks for the reply but I do not understand what is the index in the numel(unique(C(:, index))?
Cell example:
C = { '1st';'2st';'3st';'first';'2st'};
Jan
Jan 2013-10-16
In your question you wrote:
I have a cell that contain several columns among them one text column
Then index is the index of the column, which contains the text. If C is this column already, use:
numel(unique(C)) == size(C, 1)

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

提问:

hsi
hsi
2013-10-15

编辑：

Jan
Jan
2013-10-16

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by