Doug's MATLAB Video Tutorials

January 13th, 2011

How to add to a cell array in MATLAB

This MATLAB user needed to add another row to a cell array so they could populate the data in a uitable. Uitable requires that all the cells in a given column are of the same type. This video shows how to cast the values of a cell array so that this constraint is met.

By Doug Hull

Doug first used MATLAB in 1994, could not figure it out until he got some help in 1995. He is now dedicated to making sure that no one else wastes a year of their life not knowing MATLAB like he did.

19:15 UTC | Posted in Format: Video, Level: Basic | Permalink | 2 Comments »

You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

2 Responses to “How to add to a cell array in MATLAB”

Louis replied on January 14th, 2011 at 14:13 UTC :

I have determined a programmatic way to do the same. I welcome comments on this approach.
```
load('data.mat')
newRow = cellfun(@(x)(cast([],class(x))),data(1,:),'UniformOutput',false)
data = cat(1,data,newRow)
```
~Louis
dhull replied on January 14th, 2011 at 19:27 UTC :

@Louis,

There are many ways to do things in MATLAB and other languages. I tend to prefer code that is easiest to read as my first metric. It is good to know of more robust, if not more cryptic, techniques. There are places where your solution would be much better.

Thanks for adding it.

Doug