ImPlot::PlotLine() on a vector<vector<double>> dataset

[jhgorse]

Greetings,

I have a csv file that gets read into a vector<vector<double>> sd; variable. The first column sd[][0] is the timestamp in double milliseconds from epoch.

This is an attempt to plot the 2nd column:

ImPlot::PlotLine(headers[1].name.c_str(), &sd[0][0], &sd[1][0], sd.size(), 0, 0, sizeof(double)*sd[0].size());

I cannot seem to get it to work with the 2D vector.

What do you recommend?

Alternatives I see are:

1. flatten to 1D vector using modulo math
2. lambda function to access the 2D vector
3. extract to 1D vectors for each column

Cheers,
Joe