Campbell Scientific LoggerNet Datalogger Support Software User Manual
Page 358
Section 8. Working with Data Files on the PC
Semicolons are used in Time Series functions to separate the elements or
expressions from the count which determines the interval. SmplMax and
SmplMin require two elements separated by a semicolon. The first is checked
for a maximum or minimum, while the second is sampled on the maximum or
minimum.
The following set of weather data from Mt. Logan in northern Utah gives a
total of seven elements each hour. This Field Formatted output, with title and
column headers, was generated by Split. These data are used in the following
examples of Time Series functions.
Mt. Logan Weather Data
Day
Time
Airtemp
deg F
RH
Mean Wind
Speed mph
Mean
Wind
Direction
Std Dev of
Direction
178
100
58.56
17.42
5.855
338.3
6.562
178
200
57.48
17.65
8.27
344.8
7.51
178
300
56.85
17.76
7.75
330.8
5.065
178
400
56.55
18.89
7.6
319.7
10.93
178
500
56.57
19.6
10.41
307.3
4.23
178
600
55.33
23.32
8.99
317.7
6.258
178
700
55.95
24.79
9.52
322.3
4.609
178
800
58.12
23.98
6.588
315.6
9.43
178
900
59.79
23.46
5.458
312
15.32
178
1000
61.09
24.12
4.622
299.3
18.3
178
1100
61.34
25.03
5.926
303
17.26
178
1200
60.61
27.46
6.815
309.7
18.71
178
1300
61.01
25.44
8.35
310.2
18.37
178
1400
60.93
25.48
10.92
317.5
12.68
178
1500
62.3
23.79
8.43
310.6
19.21
178
1600
63.75
24.31
8.88
321.4
15.22
178
1700
66.15
22.45
7.97
341
17.77
178
1800
67.33
23.06
6.758
344.1
20.74
178
1900
66.59
24.75
7.08
341.8
16.09
178
2000
64.52
26.03
8.76
337.2
14.91
178
2100
59.84
27.45
11.81
305.4
12.36
178
2200
56.19
35.46
15.62
316.7
19.01
178
2300
55.48
38.8
17.12
338.7
11.41
179
0
55.22
37.13
11.86
351.6
8.22
Avg(x;n)
returns the average of element x over a full data set or every
n
th
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 8-9 for
definition of blank or bad data. Example:
Blanks(3) = 0 (no holes in data set).
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