Campbell Scientific PC208 Datalogger Support Software - Manual (Page 67)

SECTION 4. SPLIT
4-13
Avg(x;n) returns the average of
element x over a full data set
or every nth value.
Examples:
Avg(3) = 59.898 (average
daily temp)
Avg(3;4) =57.36 (average 4
hour temp)
56.493 (average 4
hour temp)
60.708 (average 4
hour temp)
61.998 (average 4
hour temp)
66.148 (average 4
hour temp)
56.683 (average 4
hour temp)
Blanks(x;n) returns the number of blanks
or bad data in element x over
a full data set or every nth
value. Refer to Table 4.3-4
for definition of blank or bad
data. Example:
Blanks(3) = 0 (no holes in
data set).
Count(x;n) returns the number of data
points (non blanks) in
element x over a full data set
or every nth value. Example:
Count(1) = 24 (24 data points
in data set).
NOTE: Blanks and Count are
functions designed for checking the
integrity of the data file. A common
use for these two functions is
`100.*BLANK(x;n)/BLANK(x;n) +
COUNT(x;n)' which gives the
percentage of holes (bad data) in
the file.
Max(x;n) returns the maximum value
of element x over a full data
set or every nth value.
Examples:
Max(5) = 17.12 (max wind
speed for day)
Max(5;12) = 10.41 (max WS
for 12 hours)
17.12 (max WS for 12 hours)
Min(x;n) returns the minimum value of
element x over a full data set
or every nth value.
Examples:
Min(7) = 4.23 (min std. dev.
of WS for day)
Min(3;8) = 55.33 (min temp
for 8 hours)
59.79 (min temp for 8 hours)
55.22 (min temp for 8 hours)
RunTotal(x;n) returns a running
total of element x for every
line in the data set, and
produces a Final Summary
total for the data set or every
nth value.
Example: RunTotal(5;2) =
5.85
14.12
21.87
29.47
39.88
48.87
:
:
:
166.76
182.38
199.50
211.36
211.36
Running total of hourly
average wind speed provides
up-to-the-hour wind run for
that day. The Final
Summary output, which is
daily wind, is the same as the
"total" output.
Sd(x;n) returns the standard
deviation of element x over a
full data set or every nth
value. Examples:
Sd(3) = 3.6593 (std. dev.
temp for day)
Sd(3;8) = 1.011 (Sd temp for
8 hours)
1.1182 (Sd temp for 8 hours)
4.965 (Sd temp for 8 hours)