Hi list

I loaded the content  of a file dureetasks.txt to variable a. This file
contains an interger per line.
when I print a vector, it displays correctly.
however, when I  try to print the histogram, I get this error message

> a=read.table("dureetasks.txt")
> hist(a)
Error in hist.default(a) : 'x' must be numeric

Can you help please?

regards




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