how can i creat Box plot

hi , i want to create a box plot for a matrix with 20 column and 1500 rows. one box per column. my data are at a excel file ; is the following code is true ?

 clear
clc
m =xlsread('data.xlsx');
figure;
boxplot(m);

each time i run this code , Matlab gives me Error , what is wrong whit this code ? thanks

[Michael Haderlein]

Please tell us

- the error message

- size(m)

[baran]

size(m)=[1500 20] error message: Attempt to execute SCRIPT boxplot as a function: D:\....

Error in 'mfile name' (line 5) boxplot(m)

[baran]

size(m)=[1500 20]

error message: 

Attempt to execute SCRIPT boxplot as a function: D:\....

Error in 'mfile name' (line 5)
 boxplot(m)

[Michael Haderlein]

I suppose the part of the path you have deleted links to a self-written file named "boxplot.m". Matlab will try to execute this file (which seems to be a script) instead of the original function. You should rename the respective file.

[baran]

you are right . thanks so much