[R] MLE Function

I am just trying to teach myself how to use the mle function in R because it is much better than what is provided in MATLAB. I am following tutorial material from the internet, however, it gives the following errors, does anybody know what is happening to cause such errors, or does anybody know

[R] fitdistr()

I am trying to fit the chi-squared distribution to a set of data using the fitdistr function found in the MASS4 library, the data set is called ONES3, I have loaded it using the command ONES3-read.table(ONES3.pdf,header=TRUE,na=NA) I print out the dataset ONES3 to the screen to make