equation is to be applied on the first column of values from the attached text file, then store the obatined values as a column in a text file,plot the obtained vaues

[Mahisnair]

{ (mean value of [squares of first column values])- (square of mean of the first column values) } / { (square of the mean of the first column values) }

total number of column values is 46.

this equation is to be applied on the first column of the values in the text file AND PLOT THE FINAL VALUES THUS OBATINED IN A GRAPH.

Please help.

[Mark_Yedinak]

This sounds like you are looking for someone to do your homework. We are more than happy to help with questions or specific issues you are having with your code but you will find you will get much better responses if you actually do some work yourself, post what you have done and ask specific questions.

[Freelance_LV]

So, make a VI that reads the file contents from the test file.

you will get a 2D array. read the first column (index 0) of the 2D array, use the mean and rms functions to calculate your results

wire the result to the waveform graph. but, you might be ending up with only one value as the result. so, you can as well leave it as an indicator