can calculate mean but not std

I have a vector A. I can

myavg=mean(A)

myavg=0,3

but

stDev=std(A)

will give

"Array indices must be postiive integers or logical values"

Please advise.

[alpedhuez]

https://www.mathworks.com/matlabcentral/answers/434074-why-am-i-getting-the-error-array-indices-must-be-positive-integers-or-logical-values

Answer 1

[Walter Roberson]

You accidentally created a variable named std