no sleep summary: error message when running plot command

./plot_miband2.sh Gadgetbridge 1 69281

plot 'sleep.dat' using (timecolumn(1)+100000):5:6:xtic("") with errorbars linewidth 2 title "sleeping heart rate / standard deviation"
^
"sleep_summary.gnuplot", line 41: all points y value undefined!

p.s. every line in sleep.dat seems to have NaN. I guess the behaviour is no suprise.

Can you please check. Why does it happen?

# date main_sleep_hours nap_hours hr_mean hr_sd hr_min hr_max
1506916800 20171002 0,0 0,0 NaN NaN 999 0 0,00 3925

[jasperan]

Can you please check. Why does it happen?

# date main_sleep_hours nap_hours hr_mean hr_sd hr_min hr_max
1506916800 20171002 0,0 0,0 NaN NaN 999 0 0,00 3925

The NaN values are because the heart rate could not be measured for some reason (the camera didn't detect your pulse)