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how to plot a normal distribution and calculate mean and standard deviation ?

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I have a data which is (4259*1 cell)
i want to get its normal distribution and to calculate its mean and standard deviation to get a graph like this:
I try :
[ndata text alldata] = xlsread('final53.xlsx','device age manuf');
[R,C]=size(alldata);
colsize=max(C);
data=alldata(:,14);
[mean,st]=normfit(data);
but i get an error:
Undefined function or method 'times' for input
arguments of type 'cell'.
Error in ==> normfit at 102
sumx = sum(freq.*x);
Error in ==> plotdata at 42
[mean,st]=normfit(data);
how to plot the normal distribution and calculate mean and standard deviation?

Accepted Answer

Star Strider
Star Strider on 17 Sep 2015
One option is to use the cell2mat function to define ‘data’ as a double array.

More Answers (1)

Image Analyst
Image Analyst on 17 Sep 2015
Try using ndata instead of alldata.

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