Storing fewer decimal places in an array to display using a uitable

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John Bach
John Bach 2022 年 2 月 4 日
コメント済み: John Bach 2022 年 2 月 5 日
I have a list of varaibles that are required to be displayed however, I can't work out how to manipulate the values so that they are presentable when dispalyed in the uitable. I need to decrease the number of decimal places dispalyed and centralise them in the table however I can't work out, nor find on previous and related forums, how to do this.
Thanks yoh in advance for your help.
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Walter Roberson
Walter Roberson 2022 年 2 月 4 日
Is this for "traditional figures" (GUIDE) or "uifigure" (App Designer) ? I would need to research for uifigure(); for traditional figures, the method of centering each entry requires converting to a cell array of character vectors, each of which has to have some HTML 1.1 code added to it.
John Bach
John Bach 2022 年 2 月 4 日
This is just for traditional figures, although from what you're saying this method sounds a bit above my pay grade. I will reserach into converting the entries to a cell array of character vectors to see whether I can implement this into my code.
Thank you for your help.

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Simon Chan
Simon Chan 2022 年 2 月 4 日
Change the number to a string by using function sprintf as follows:
uit1 = uitable(uif,'Position',[5 155 500 100]);
uit1.Data = rand(3,5); % Upper uitable using number
uit2 = uitable(uif,'Position',[5 10 500 100]);
uit2.Data = arrayfun(@(x) sprintf('%.2f',x),rand(3,5),'uni',0); % Lower uitable using string
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Walter Roberson
Walter Roberson 2022 年 2 月 5 日
Ran in:
uif = figure(); %traditional figure not uifigure
uit1 = uitable(uif,'Position',[5 155 500 100]);
uit1.Data = rand(3,5) * 100; % Upper uitable using number
uit2 = uitable(uif,'Position',[5 10 500 100]);
uit2.Data = arrayfun(@(x) sprintf('<HTML><CENTER>%.2f</CENTER>',x),uit1.Data,'uni',0); % Lower uitable using string
You might notice that the alignment is not center in practice. And if you use
uit2.Data = arrayfun(@(x) sprintf('<HTML><TBODY><TR><TD ALIGN="RIGHT">%.2f</TD></TR></TBODY>',x),uit1.Data,'uni',0); % Lower uitable using string
then in practice the alignment is not right (or center if you use that.) But you can tell that TBODY was used: a heavier weight of font is used for the characters.
In theory you can use HTML 1.1 in that context; in practice it can be difficult to get to work.
I seem to remember that I did get it to work in some earlier releases. Unfortunately, it would probably be difficult for me to find the appropriate postings now.
John Bach
John Bach 2022 年 2 月 5 日
I do really appreicate all of the effort that you've put into trying to help me, so thank you so much for that. I have now got a very good way of presenting my data, and what I am going after is merely for improving aesthetics.
Thanks both for your vital contributions!

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