Converting a cell array into an array

Question

I have a: 1×7 cell array of strings:

arr1 = '0.1' '0.4' '0.0' '0.1' '0.4' '0.0' '2.1'

I need to transform this thing into a proper matrix 1x7 matrix. If I do:

cell2mat(arr1)

I get:

'0.10.40.00.10.40.02.1'

It gives me a single string. What am I doing wrong?

Luis Mendo · Accepted Answer · 2017-04-11 10:49:24Z

2

Use str2double:

>> arr1 = {'0.1' '0.4' '0.0' '0.1' '0.4' '0.0' '2.1'};
>> result = str2double(arr1)
result =
    0.1000    0.4000         0    0.1000    0.4000         0    2.1000

Why didn't your approach work? Because cell2mat simply concatenates the contents of the cells, which are strings, so you get a single string instead of several numbers.

answered Apr 11, 2017 at 10:49

Luis Mendo

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1 Comment

Luis Mendo Over a year ago

@Andry Prego! :-)

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