Syntax:

-rmsbin Nbin bintime1...bintimeN

Example 1.
$ ./vartools -header -l EXAMPLES/lc_list \
    -rmsbin 5 5.0 10.0 60.0 1440 14400

#Name RMSBin_5.0_0 Expected_RMS_Bin_5.0_0 RMSBin_10.0_0 Expected_RMS_Bin_10.0_0 RMSBin_60.0_0 Expected_RMS_Bin_60.0_0 \
      RMSBin_1440.0_0 Expected_RMS_Bin_1440.0_0 RMSBin_14400.0_0 Expected_RMS_Bin_14400.0_0
EXAMPLES/1   0.15943   0.00048   0.15944   0.00035   0.15947   0.00016   0.15879   0.00007   0.13152   0.00003
EXAMPLES/2   0.03659   0.00047   0.03659   0.00035   0.03649   0.00016   0.02723   0.00006   0.00378   0.00003
EXAMPLES/3   0.00292   0.00048   0.00255   0.00035   0.00180   0.00016   0.00125   0.00006   0.00062   0.00003
EXAMPLES/4   0.00146   0.00053   0.00135   0.00040   0.00113   0.00018   0.00092   0.00007   0.00040   0.00003
EXAMPLES/5   0.00180   0.00051   0.00162   0.00038   0.00135   0.00017   0.00093   0.00007   0.00057   0.00003
EXAMPLES/6   0.00130   0.00054   0.00117   0.00040   0.00090   0.00018   0.00059   0.00007   0.00025   0.00003
EXAMPLES/7   0.00208   0.00051   0.00180   0.00038   0.00124   0.00018   0.00047   0.00007   0.00011   0.00003
EXAMPLES/8   0.00151   0.00056   0.00142   0.00041   0.00130   0.00019   0.00096   0.00007   0.00033   0.00003
EXAMPLES/9   0.00105   0.00060   0.00090   0.00044   0.00068   0.00020   0.00047   0.00008   0.00021   0.00003
EXAMPLES/10   0.00139   0.00064   0.00123   0.00047   0.00092   0.00021   0.00065   0.00008   0.00030   0.00003

Apply a set of moving-mean filters to the light curves in the list EXAMPLES/lc_list and calculate mean, RMS, and expected RMS assuming white noise for each filter. We use 5 filters of 5.0, 10.0, 60.0, 1440.0, and 14400.0 minutes. Note that the "filter" here refers to replacing each point in the light curve with the mean of all points that are within the specified number of minutes of that point.