It is pretty easy to create a graph yourself using GDs drawing primitives, as you read the file, though you would need to make two passes through the file. The first to calculate minimums & maximums so you know how to scale the data.

But still the problem remains. If there are so many values that loading them into ram is a problem, then plotting them all on a single graph will either result in graph so dense it is unreadable, or so large that the image size itself could be a memory problem.

Without you saying

There's really not a lot anyone can do to help.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

In reply to Re: Graph a file without using arrays by BrowserUk
in thread Graph a file without using arrays by ITmajor

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