The invention relates to an analytical
machine arrangement (100). A method comprises obtaining (A10) N
time domain measurement samples at a time T (n), where n traverses the number of samples N, and the distance between adjacent samples in the
time domain is T. The method further comprises determining (A12) updated,
normalized time-domain measurement samples having a timing Tadapt (n) for each sample based on the associated T (n) and T adjustment, further based on an actual frequency factual (n) of the
machine arrangement (100), and further based on an undesired behavior and / or error-related frequency F. The method further comprises determining (A12) the updated,
normalized time-domain measurement samples having the timing Tadapt (n) for each sample based on the associated T (n) and T adjustment, further based on the actual frequency factual (n) of the
machine arrangement (100). The method further comprises determining (A14) M reconstructed,
normalized time domain measurement samples having a constant sampling period T2 at a time T (m), where m traverses the number M of samples. Furthermore, the method comprises performing (A16) a
frequency analysis on the reconstructed time-domain measurement samples.