Creating interactive annotation with latex

Hi,

I want to add annotation to a histogram which will contain mean, standard deviation and number of sample. I could create a box and write the text using latex but I can't insert the value interactively. Here I am sharing my code as follows.

tpd = dataArray{:, 11}*1e9; mu = mean(tpd); sigma = std(tpd); tpd_median = median(tpd); t = annotation('textbox'); t.Interpreter = 'tex'; str = t.String; i = t.Interpreter; s = t.FontSize; d = t.Position; str.Interpreter = 'Latex'; str_mu = sprintf('\mu = %0.3f',mu) str_sigma = sprintf('\sigma = %0.3f',sigma) t.String = {str_mu,str_sigma}; t.Position = [0.7 0.6 0.18 0.2]; t.FontSize = 12;

The tool is throwing the following errors.

Warning: Struct field assignment overwrites a value with class "cell". See MATLAB R14SP2 Release Notes, Assigning Nonstructure Variables As Structures Displays Warning, for details. > In lvt_mc_1 (line 96) Warning: Control Character '\m' is not valid. See 'doc sprintf' for control characters valid in the format string. > In lvt_mc_1 (line 97)

str_mu =

   Empty string: 1-by-0

Warning: Control Character '\s' is not valid. See 'doc sprintf' for control characters valid in the format string. > In lvt_mc_1 (line 98)

str_sigma =

   Empty string: 1-by-0

I am using Matlab 2015a.

Please help me to get rid of the issue.

Thanks in advance Saikat Chatterjee