Output data sample for missing data simulation:

idno	value	time	value1	time1	diff	diffa	diff2	time_diff
352	0	5	0.8226627034	5	0.8226627034	0.8226627034	0.6767739236	0
316	0	5	0.1992537762	5	0.1992537762	0.1992537762	0.0397020673	0
359	0	6	0.5061552388	6	0.5061552388	0.5061552388	0.2561931257	0
338	0	3	0.4949265221	3	0.4949265221	0.4949265221	0.2449522623	0
128	1	3	0.7398410448	3	-0.260158955	0.2601589552	0.067682682	0
175	0	6	0.6178339778	6	0.6178339778	0.6178339778	0.3817188241	0