What Shall I need to add while calling file having numerical digits (e.g. -1,-2)?

Question

Sumit Saha 2021-3-28

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回答： Walter Roberson 2021-3-28

% Calculation of PGA Values for Individual Earthquake 
load Histories/IND.X0kY-1k.CXY.sema;
PGA_EQ(1,1) = max(IND.X0kY-1k.CXY(:,1));

But it shows a different error.

>>>>>> "Unexpected MATLAB expression"

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Answer 1

Walter Roberson 2021-3-28

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https://www.mathworks.com/help/matlab/ref/load.html#btm40vx-5

To create the variable name, load precedes any leading underscores or digits in filename with an X and replaces any other nonalphabetic characters with underscores

So IND.X0kY-1k.CXY.sema would result in the creation of variable named IND_X0kY_1k_CXY (file extension is removed)

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Answer 2

the cyclist 2021-3-28

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编辑：the cyclist 2021-3-28

在 MATLAB Online 中打开

You may want to try the functional form instead.

load('Histories/IND.X0kY-1k.CXY.sema');

Also, what variables are in your workspace after loading? You will not have a variable named IND.X0kY-1k.CXY (which it seems you are trying to use), because that is not a valid variable name.