I want to program labview to read a file data from an other code and make graph

[iun]

if you can give me an example

[RobertoBozzolo]

You'd better post this question in the LabVIWE section of the Developer Exchange.

Anyway, I suggest you to look in the examples shipped with LabVIEW: you can find some basic VI that can help to solve your problem.
In Search Examples >> Fundamentals >> File I/O you can learn how to read data from a file.
In Fundamentals >> Graph and Charts you can find examples on how to graph data.

The basic problem is the format of data stored on file: all is easy if they are in plain text, some moreproblem will arise in case they are stored in binary format.

Hope this helps
Roberto

[chutla]

Depending on exactly what form your data is in, you will be looking at some sort of VI similar to the attached. From my vast experience :=).....the biggest challenge in importing unknown data formats, is whether it's "BigEndian" or "LittleEndian" data...that is...is it sent most significant bit, or least significant bit first. It's a simple matter to reverse the data, and see what gives you a reasonable looking graph. If you have the direction reversed, you will usually have a discontinuous bunch of vertical lines. Anyway...give this a shot, and let me know what happens.