Extract certain values in .mat file

Hi,

I have a mat file with 1250x1 data and I want to extract specific values from the 1250. For example I want to extract every 2nd or every 5th values.

As an example, the mat file contains the following values:

-0.13793 -0.114746 -0.204773 -0.224304 -0.181274 -0.192566 -0.159912 -0.174866 -0.134888 -0.148926

For every 2nd I want to read: -0.114746 -0.224304 -0.192566 -0.174866 -0.148926

For every 5th I want to read: -0.181274 -0.148926

What is the best command to do this? Thank you.

[VBBV]

@Sleiman Ghorayeb To extract you need to first load the mat file into workspace and access the data variable

Answer 1

[VBBV]

data= [-0.13793	  -0.114746	-0.204773	-0.224304	-0.181274	-0.192566	-0.159912	-0.174866	-0.134888	-0.148926]

data = 1x10

-0.1379 -0.1147 -0.2048 -0.2243 -0.1813 -0.1926 -0.1599 -0.1749 -0.1349 -0.1489

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data(2:2:end)

ans = 1x5

-0.1147 -0.2243 -0.1926 -0.1749 -0.1489

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data(5:5:end)

ans = 1x2

-0.1813 -0.1489

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[Sleiman Ghorayeb]

Thank you for your response. Very helpful.

However, I read the original data file by using the "load" command.

Can I do this:

data=[hb]; %hb is the array containing all 1250 data points

data(2:2:end);

or

data(5:5:end);

[VBBV]

@Sleiman Ghorayeb yes, you can if the datatype of hb is not a structure. It its a structure, then you need to use . (dot) operator to access data from structure. can you attach data file ?