creating an array from an object

2013 4 17
3 个回答
回答已采纳
4 次查看（30 天）

0 个投票

Hi,
I have an object which comes from a database and is in the following format
cats 100 200 300 100 dogs 50 100 110 80 mice 80 30 40 200
I am using cell2mat to create matrices from the object for coloumns 2 - 5 - however you cannot mix strings and numbers and infact you cant even get a matrix of coloumn 1 ie the strings cats, dogs, mice. I need to create a separate matrix - or I believe it will be called an array in this instance that returns underneath each other all the strings from coloumn 1.
Many thanks

请先登录，再回答此问题。

 采纳的回答

matthew arnott
matthew arnott 2013-4-18

0 个投票

Not sure if its the correct thing to do but in my example the "num2cell" function has worked even though I am dealing with strings and not numbers. So I used
s = num2cell(Objectname(1)) s2 = s{1,1} s3 = s2{1}

更多回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-4-17

0 个投票

s={'cats' 100 200 300 100 'dogs' 50 100 110 80 'mice' 80 30 40 200}
out=s(cellfun(@isstr,s))

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

matthew arnott
matthew arnott 2013-4-17
Many thanks for the help however I am starting from an OBJECT not a list so the cellfun function returns an empty matrix - not being a guru, unforunatley I cannot explain it any better. The object is the return of a query into a database so its a database object if you like. the cell2mat function is able to return matrices of the numeric numbers but not an array or matrix of the words.

请先登录，再进行评论。

matthew arnott
matthew arnott 2013-4-17

0 个投票

Appreciate the help. However my starting point is an object not a list - so the cellfun function returns an empty matrix

类别

在 帮助中心 和 File Exchange 中查找有关 Characters and Strings 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by