two comments (based on my version of Matlab = 5.2)
1 - Variable_LS1_P0.2 is an illegal filename to begin with.  If I try to intialize the variable using...
Variable_LS1_P0.2=[1,2;3,4]
.....then I get error Missing operator, comma, or semi-colon.... pointing toward that period.

2 - My version does not concatentate strings using comma.  Need strcat function.  i.e. to create the string

I'd have to use
strcat('Variable_LS1_P',num2str(LS1),'=mat')

(although based on item 1, applying eval to this string would still result in an error)

 

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Clarification in bold:

Quote (electricpete bold clarification):

2 - My version does not concatentate strings using comma.  Need strcat function.  i.e. to create the string Variable_LS1_P0.2=mat

I'd have to use
strcat('Variable_LS1_P',num2str(LS1),'=mat')

(although based on item 1, applying eval to this string would still result in an error)

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Constructing variable names (via 'eval') and then using them will almost always end in tears.  It will always end in a workspace polluted by large numbers of variables.

Search the cell array help.  A new-ish ML feature that makes DIY variable names a thing of the past.

- Steve