Reading a sensor name which starts with negative sign causing error

Hi

I am having some statistical files and i need to read the statistics corresponding to each sensor. But one of my sensor name starts with an negative sign like -Mx11, and matlab is able to read the file but while writing it out to a new variable it is throwing error

??? Invalid field name: '-Mx15'.

Is there any way to write this out with the negative sign/ why this error happens

[Sean de Wolski]

How are you calling it?

Answer 1

[Image Analyst]

You forgot to tell us how you're reading it. What are the lines of code that do the reading?

[Walter Roberson]

And the "writing to a new variable": we need to see that code too.