Why does the importdata function read in my file data incorrectly when reading data from a .mp file

When I run the function MyData = importdata(filename); I am getting an issue with how the data is reading in.

In the created MyData variable I should now have 2 new fields textdata and data which should be defined by the ' ' delimiter and their values/text.

Below is a breakdown of my code + data and the outputs I'm getting if anyone can help or has had this type of issue before?

Here's an example of what the data from the .mp file looks like as a text file

$Female =   0

$Adult =   1

$Height =  1885 

$BodyMass =  71.8  

$SamplingRate = 250

Instead of breaking the data up into the appropriate sections based on the ' ' delimiter it does this for textdata

'$Female ='

'$Adult =   1'

'$Height =  1'

'$BodyMass ='

And this for data

0

NaN

885

71.8000000000000

Answer 1

[Walter Roberson]

fid = fopen(filename, 'rt');
datacell = textscan( fid, '%s=%f' );
fclose(fid)

textdata = datacell{1};
data = datacell{2};