Category: Uncategorized

  • What does calling namedtuple on a collection type

    What is a namedtuple? A namedtuple is aPython tuple with named fields. They’re like dicts, but they’re more efficient for reading and writing and they don’t support item assignment. A namedtuple is created by calling thenamedtuples() function. The first argument is the name of the tuple, and the second argument is a list of field […]

  • What do closely spaced isobars indicate

    Isobars Isobars are lines on a map that connect points with the same barometric pressure. The pressure is measured by a barometer and is usually reported in millibars (mb) or inches of mercury. Millibars are the international unit of measure for atmospheric pressure, while inches of mercury is used in the United States. What are […]

  • What did pseudodionysius inspire abbot suger to do

    Introduce Pseudodionysius and his impact in the early Christian church Pseudodionysius the Areopagite was a Christian theologian and philosopher of the late fifth to early sixth century. He wrote a number of influential works, including The Celestial Hierarchy, The Ecclesiastical Hierarchy, and Mystical Theology. His work had a significant impact on the development of mystical […]

  • What are the various types of keys in the database

    Database keys There are three types of keys in the database which are Primary Key, Foreign Key, and Composite Key. A primary key is a column or a set of columns that uniquely identify a row in a table. A foreign key is a column or set of columns in a table that match the […]

  • What are the principal sources of data

    Data There are many sources of data, including but not limited to business data, scientific data, demographic data, and more. Data can come from different sources, such as surveys, experiments, data gathered from sensors, and more. Data Collection There are many ways to collect data. Some common methods include surveys, interviews, focus groups, observations, and […]

  • What are the four major steps of data mining process

    Data Mining Process Data mining is the process of finding patterns in large data sets. The four major steps of the data mining process are 1) pre-processing, 2) data reduction, 3) data transformation, and 4) pattern analysis. Data Collection Data mining is the process of extracting valuable information from large data sets. The four major […]

  • What are the common data entry errors

    Data entry mistakes can cost your business time and money Data entry mistakes can cost your business time and money. There are many different types of data entry error, but some of the most common include: -Transcription errors: these occur when data is entered incorrectly because it has been misheard or misunderstood. -Keying errors: these […]

  • What are rules that help ensure the quality of information

    Introduction The following are general rules that will help ensure the quality of information on the Internet: -Check the date to make sure the information is current.-See if there is an author listed and check their credentials.-Evaluate the tone of the article to see if it is objective or biased.-Make sure the website is credible […]

  • Weak entity set does not have a primary key

    What is a weak entity set? A weak entity set is an entity set that does not have a primary key. The primary key of a weak entity set is a combination of the primary key of the strong entity set on which it depends and its own attribute. Characteristics of a weak entity set […]

  • Warning address of local variable returned c

    Introduction In computer programming, a local variable is a variable that is given a local scope. That is, it can only be accessed within the code block in which it is defined. It is not visible to code outside that block. A local variable is created when it is first assigned a value. It has […]