Fill in Zeros — acti_fill_zeros • actibase

Fill in Zeros

Usage

acti_fill_zeros(data, method = c("all", "actilife"), sample_rate = NULL)

acti_fill_zeroes(data, method = c("all", "actilife"), sample_rate = NULL)

acti_remove_leading_zeros(data)

acti_remove_leading_zeroes(data)

Arguments

data: a data frame containing columns time, X, Y, Z
method: "all" (default) fills every all-zero row. "actilife" fills only runs of all-zero rows that are at least one second long (sample_rate rows) and keeps shorter runs as recorded zeros. In idle sleep the device stops sampling for at least a second, and ActiLife repeats the last sample over that time, but a single recorded (0, 0, 0) sample is kept by ActiLife.
sample_rate: sample rate, in Hz, used when method = "actilife". If NULL, it is resolved with get_sample_rate().

Value

the modified data frame with zeros replaced by NA

Note

With method = "actilife", the kept zero rows are still all zero, so a later step that treats all-zero rows as idle sleep (such as agcounts::calculate_counts()) will fill them anyway.

Examples

acti_fill_zeros(acti_raw_data)
#> # A tibble: 240,500 × 4
#>    time                    X      Y     Z
#>    <dttm>              <dbl>  <dbl> <dbl>
#>  1 2019-09-17 18:40:00 0      0.008 0.996
#>  2 2019-09-17 18:40:00 0.016  0     1.01 
#>  3 2019-09-17 18:40:00 0.02  -0.008 1.00 
#>  4 2019-09-17 18:40:00 0.016 -0.012 1.01 
#>  5 2019-09-17 18:40:00 0.016 -0.008 1.01 
#>  6 2019-09-17 18:40:00 0.008 -0.008 1.01 
#>  7 2019-09-17 18:40:00 0.016 -0.008 1.02 
#>  8 2019-09-17 18:40:00 0.02  -0.004 1.02 
#>  9 2019-09-17 18:40:00 0.016  0     1.01 
#> 10 2019-09-17 18:40:00 0.012  0     1.02 
#> # ℹ 240,490 more rows
acti_fill_zeroes(acti_raw_data)
#> # A tibble: 240,500 × 4
#>    time                    X      Y     Z
#>    <dttm>              <dbl>  <dbl> <dbl>
#>  1 2019-09-17 18:40:00 0      0.008 0.996
#>  2 2019-09-17 18:40:00 0.016  0     1.01 
#>  3 2019-09-17 18:40:00 0.02  -0.008 1.00 
#>  4 2019-09-17 18:40:00 0.016 -0.012 1.01 
#>  5 2019-09-17 18:40:00 0.016 -0.008 1.01 
#>  6 2019-09-17 18:40:00 0.008 -0.008 1.01 
#>  7 2019-09-17 18:40:00 0.016 -0.008 1.02 
#>  8 2019-09-17 18:40:00 0.02  -0.004 1.02 
#>  9 2019-09-17 18:40:00 0.016  0     1.01 
#> 10 2019-09-17 18:40:00 0.012  0     1.02 
#> # ℹ 240,490 more rows
# \donttest{
   acti_fill_zeros(acti_raw_data, method = "actilife")
#> # A tibble: 240,500 × 4
#>    time                    X      Y     Z
#>    <dttm>              <dbl>  <dbl> <dbl>
#>  1 2019-09-17 18:40:00 0      0.008 0.996
#>  2 2019-09-17 18:40:00 0.016  0     1.01 
#>  3 2019-09-17 18:40:00 0.02  -0.008 1.00 
#>  4 2019-09-17 18:40:00 0.016 -0.012 1.01 
#>  5 2019-09-17 18:40:00 0.016 -0.008 1.01 
#>  6 2019-09-17 18:40:00 0.008 -0.008 1.01 
#>  7 2019-09-17 18:40:00 0.016 -0.008 1.02 
#>  8 2019-09-17 18:40:00 0.02  -0.004 1.02 
#>  9 2019-09-17 18:40:00 0.016  0     1.01 
#> 10 2019-09-17 18:40:00 0.012  0     1.02 
#> # ℹ 240,490 more rows
# }