SAS Visual Analytics for Viya Flashcards
For which type of what-if analysis do you modify future values of the underlying factor to determine the impact on the forecast?
a. scenario analysis
b. goal seeking
c. prediction analysis
d. target seeking
a. scenario analysis
For which type of what-if analysis do you modify future values of the forecast to determine the change needed for the underlying factor?
a. scenario analysis
b. goal seeking
c. prediction analysis
d. target seekin
b. goal seeking
What types of data items are needed to create a forecasting object?
a. date and category
b. time and datetime
c. datetime and measure
d. category and measure
c. datetime and measure
What are additional measures that improve the accuracy of the forecast?
a. underlying factors
b. additional measures
c. underlying measures
d. additional factors
a. underlying factors
What types of data items are needed to perform what-if analysis?
a. datetime, category, and underlying factor
b. time, datetime, and underlying factor
c. date, measure, and underlying factor
d. category, time, and underlying factor
c. date, measure, and underlying factor
Which transform in SAS Data Studio enables you to convert character data to uppercase?
a. Change case in the Column Transforms group
b. Manage columns in the Column Transforms group
c. Uppercase data in the Column Transforms group
d. Convert column in the Column Transforms group
a. Change case in the Column Transforms group
Which transform in SAS Data Studio enables you to convert character data to proper case based on a definition?
a. Change case in the Column Transforms group
b. Casing in the Data Quality Transforms group
c. Propercase data in the Data Quality Transforms group
d. Convert column in the Column Transforms group
b. Casing in the Data Quality Transforms group
Which type of geo map should be used with very dense data?
a. coordinate with scatter plot
b. coordinate with bubble plot
c. region
d. contour
d. contour
Which type of geo map can be used when there is NOT an even distribution of values within each region?
a. coordinate with scatter plot
b. coordinate with bubble plot
c. region
d. choropleth
b. coordinate with bubble plot
What is needed to create a geography data item using geographic name or code lookup?
a. latitude
b. longitude
c. geographic data provider
d. country names or codes
d. country names or codes
What is needed to create a geography data item using latitude and longitude in data?
a. latitude and longitude
b. geographic data provider
c. country names or codes
d. US postal codes
a. latitude and longitude
What is needed to create a geography data item using custom polygonal shapes?
a. latitude and longitude
b. geographic data provider
c. country names or codes
d. US postal codes
b. geographic data provider
Which type of geo map enables you to cluster adjacent markers?
a. coordinate with scatter plot
b. coordinate with bubble plot
c. region
d. contour
a. coordinate with scatter plot
Which type of geo map enables you to add a measure to determine the size of the marker?
a. coordinate
b. region
c. contour
d. choropleth
a. coordinate
Which application enables you to customize the look and feel of the SAS Viya applications and your reports?
a. SAS Studio
b. SAS Graph Builder
c. SAS Theme Designer
d. SAS Lineage
c. SAS Theme Designer
Which object in SAS Visual Analytics runs several models and chooses a champion model for predicting a specific response using most of the data items in the table?
a. automated explanation
b. factors chart
c. automated prediction
d. response chart
c. automated prediction
Which object in SAS Visual Analytics determines the most important underlying factors for a response variable by using most of the data items in the table?
a. automated explanation
b. factors chart
c. automated prediction
d. response chart
a. automated explanation
What are the 2 types of Network Analysis objects?
Hierarchical - shows a parent-child relationship in which each parent node is linked only to its children. Typically, this type of network diagram shows disconnected clusters of nodes.
Ungrouped - creates a series of linked nodes from a source to a target. A node is created for each value of the source data item, and a link is created from each node to the node that corresponds to the value of the target data item. Vertices and links in this type of diagram represent connections between the nodes. Ungrouped network can either be undirected or directed.
What are the requirements for a Network Analysis?
Data must have one row for each source-target pair
How are Ungrouped Network Analyses used?
Ungrouped network diagrams can be used to interpret the structure of a network by looking at the clustering of nodes, how densely the nodes are connected, and how the diagram layout is arranged.
E.g. Organizational Structure of a Company or Airline and Airport Connections
How can an ugrouped network diagram be overlaid on a geomap?
Both the source and target nodes are geographic data items, then the network can be overlaid on a geo map.
Helpful for understanding how location affects the relationships in the network.
Which table is structured appropriately for ungrouped network analysis in SAS Visual Analytics?
c.
To create an ungrouped network analysis in SAS Visual Analytics, the table must have at least one row for each source-target pair. In addition, the target values (in this case, EMPLOYEE) must be a subset of the source values (in this case, MANAGER)
Which type of network analysis object shows parent-child relationships?
a. linked
b. hierarchical
c. ungrouped
d. targeted
b. hierarchical
Which type of network analysis object shows a series of linked nodes from a source to a target?
a. linked
b. hierarchical
c. ungrouped
d. targeted
c. ungrouped
What is an example of a directed relationship for an ungrouped network analysis object?
a. transactions between criminals
b. the Friends relationship on Facebook
c. actors in Saturday Night Live episodes
d. the Friends relationship on Snapchat
a. transactions between criminals
A directed relationship in an ungrouped network analysis object shows the direction of the relationship between entities using arrows. Transactions between criminals is an example of a directed relationship because one person sends money (source) and another person receives the money (target).
What is an example of an undirected relationship for an ungrouped network analysis object?
a. disease transmission
b. phone calls between family members
c. trash pickup routes
d. connections on LinkedIn
d. connections on LinkedIn
An undirected relationship in a network analysis object displays only the connections between entities, meaning that there is no direction to the relationship. Connections on LinkedIn is an example of an undirected relationship because the connection is mutual: Person A is related to person B, which implies that person B is related to person A.
What types of data items are needed to overlay an ungrouped network analysis object on a geo map?
a. two geographies
b. two measures
c. one geography, one measure
d. one category, one measure
a. two geographies
What is a Path Analysis and how are they used?
- A Path Analysis shows flows of data from one event to another.
- Each path consists of linked nodes which are consecutive events in that path
- Links between the linked nodes can be sized by the frequency of the path or the value of a weight
E.g., tracking website visited by customers who made a purchase.
What can the color of a Link’s Path be configured to indicate?
- Show each path as a different color - good for small number of paths
- Show each event in a different color - good for comparing the same event
- Indicate drop-offs - easier to identify where paths frequently end
What are the data requirements for a Path Analysis?
- one row for each identifier/event pair
- each row needs a sequence order (datetime data item or measure) that orders the events for any given identifier.
- Optionally, you can have a measure that determines the link width for the object - a positive number GT zero
Identifier = a value that uniquely labels each person or object that we would like to analyze. e.g., student, customer, visitor to a website
Event = represents the different nodes in the diagram. E.g., classes a student takes, pages of a website
Which table is structured appropriately for path analysis in SAS Visual Analytics?
b
To create a path analysis object in SAS Visual Analytics, the table must have one row for each event-identifier pair, and a datetime data item or measure that orders the events for any given identifier. In this example, CLASS is the event, NAME is the identifier, and ORDER (numeric) is the ordering data item.
If you would like to easily view each path separately from start to end, how should you color the links in a path analysis object?
a. by path
b. by event
c. by drop off
d. by weight
a. by path
Coloring links by path is useful if you have a small number of paths and you would like to follow each path separately from start to end.
If you would like to visually compare the same events throughout the path analysis object, how should you color the links?
a. by path
b. by event
c. by drop off
d. by weight
b. by event
Coloring links by event makes it easier to visually compare the same event throughout the path analysis object.
If you would like to identify where paths frequently end, how should you color the links in a path analysis object?
a. by path
b. by event
c. by drop off
d. by weight
c. by drop off
What types of data items are needed to create a path analysis object?
a. three categories
b. two dates, one aggregated measure
c. three measures
d. two categories, one measure
d. two categories, one measure
To create a path analysis object in SAS Visual Analytics, you need a category for the Event role, a date or measure for the Sequence order role, and a category or measure for the Transaction identifier role.
How are the links colored in this path analysis object?
a. by path
b. by event
c. by drop off
d. by weight
b. by event
In this example, the links are colored by event. Notice how the path after the Outage event is always a teal color.
How are the links colored in this path analysis object?
a. by path
b. by event
c. by drop off
d. by weight
c. by drop off
In this example, the links are colored by drop off. Notice how all paths are the same color. This indicates that the paths end without additional paths continuing onward.
Which path is most common in this path analysis object?
a. 1
b. 2
c. 3
d. 7
a. 1
In this example, the most common path is the teal path (path 1). There are seven identifiers that follow this specific path.
How are the links colored in this path analysis object?
a. by path
b. by event
c. by drop off
d. by weight
b. by event
In this example, the links are colored by event. Notice how the path after The Empire Strikes Back event is always an orange color.
How are the links colored in this path analysis object?
a. by path
b. by event
c. by drop off
d. by weight
a. by path
In this example, the links are colored by path. Notice how each path is a separate color.
Describe the Text Topics objects.
- Displays a set of words from unstructured text
- Document Collection - Unstructured text in a text topic object
- Topics are words that often appear together in a document and are displayed in a bar chart.
- Word Cloud displays terms for a topic with the size reflecting the terms importance in the topic
- A table lists all documents that contain a specific term
What is sentiment analysis?
It is a text topic object that categorizes documents as positive, neutral, or negative
What 3 things are required for a text topics object?
- Document Collection - the data item that contains unstructured text
- Data Language - determines which stop list is used for text analytics
- Unique ID - the data item that contains a value that is unique for each row of the data source
How does Text Analytics work?
- unstructured text is parsed into individual terms
- terms are compared with a stop list, if available
- terms found in the stop list are removed from the analysis
- remaining terms are analyzed to determine topics (terms that tend to show up together in documents)
What is a stop list?
A table of common words that are ignored during text analytics
How are terms scored for sentiment analysis?
Negative words = 0
Neutral words = 0.5
Positive words = 1
Scores are averaged to determine the overall sentiment of each document
GT .5 is a positive document
EQ .5 is a neutral document
LT .5 is a negative document
What are term roles?
Identifies terms by their parts of speech (noun, verb, adjective), identifies groups of nouns as single terms, and identifies text entities (names, address, phone numbers).
What are Stem words?
Different forms of a given word. For example, sell is the stem word of the following: sell, sells, selling, sold.
What are documents?
Unstructured text. These are displayed in the documents list table and are a single row in the data source.
What are terms?
Words or phrases. These are displayed in the terms word cloud.
What are topics?
Words that often appear together in documents. These are displayed in the topics bar chart.
What are Topic Term weights?
Indicates the importance of the word in the topic.
What are Derived Data Items?
Derived data items can be created from topics and relevance to further analyze the topics that are generated. They can be created from derived topics and derived relevance.
What are derived topics?
The value is either 1 (if the document is included in the topic) or 0 (if the document is not included in the topic).
This derived topic can then be used with other data items in the table to get a better understanding of the subgroup for the topic.
What are derived relevance?
The value represents the relevance of the document in that topic.