I am posting this question second time so please tell me, where I was wrong?
In manual g_analyze reads an ascii file and analyzes data sets, in which input file was graph.xvg. To generate eigenvector and eigenvalue file I have used g_covar and analyzed eigenvectors by g_aneig. So according to manual input file should be an ascii file, is it covar.dat file generated by g_covar. But in actual it needs some graph.xvg file, which file is this .xvg file should be taken for input. -- Pawan
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