Advanced Visualizations Mod 4 Flashcards
What are some of the functions of the trendline command?
- Allows you to overlay a computed moving average on a chart
- Trendline computes the moving averages of a field
example: trendline (field) [AS newfield]
How many trendtypes are there?
- sma = simple moving average
- ema = exponential moving average
- wma = weighted moving average
What must be defined in order for the trendline command to work properly?
The period which to compute the trend
The period must be an integer between?
2 and 10,000
example:
sma2(sales) is valid
sma(sales) would fail
When would you want to use the iplocation command?
To look up and add location information to an event
What information does the iplocation command include?
City, country, region, latitude and longitude
Is all the information available for all the IP address ranges?
NO
What will automatically define the default lat and lon fields required by the geostats command?
The iplocation command
When would you want to use the geostats command?
To compute statistical functions and render as cluster map
What are some of the components fo the geostats command?
[latfield=string]
[lonfield=string]
[stats-agg-term]* [by-clause]
What does the data for the geostats command have to include?
Latitude and Longitude values
When would you want to change the latfield and longfield in the geostats command?
If they differ from the default lat and lon fields
What are some of the ways you can control the column count when using the geostats command?
- On a global level, use the globallimt argument
- On a local level, depending on where your focus is (i.e., where you’ve zoomed in), use the locallimit argument
What is a Choropleth Map?
It uses shading to show relative metrics, such as sales, network intruders, etc. for predefined geographic regions
You need one of these in order to define regional boundaries?
- KML (keyhole Markup Language) file
- KMZ (compressed Keyhole Markup Language) file