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Related Concept Videos

Skewness01:06

Skewness

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The measures of central tendency calculated from a data set may not reveal much about its intrinsic distribution. If a plot is made of the data set’s values, the mean and the median may not only differ, but also the plot may have more values on one side of the central tendencies. Such a data set is said to be skewed towards that side.
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If the frequency distribution of a data set is more inclined towards smaller or larger values, the distribution is said to be skewed. If data values are skewed to the right, then the distribution is called positively skewed. Conversely, if the plot is skewed to the left, the distribution is called negatively skewed.
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A pie chart (or a pie graph) is a circular graphical chart or a pictorial representation of categorical data. It is divided into slices of pie each indicating numerical proportions. It is also used to show the relative sizes of data in a single chart.
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Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines. While...
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A bar graph is also called a bar chart and consists of bars that are separated from each other. It either uses horizontal or vertical bars to show comparisons among categories. The bars can be rectangles, or they can be rectangular boxes (used in three-dimensional plots). One axis of the graph represents the specific categories being compared, and the other axis shows a discrete value. In this graph, the length of the bar for each category is proportional to the number or percent of individuals...
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The most common and easiest way to display the relationship between two variables, x and y, is a scatter plot. A scatter plot shows the direction of a relationship between the variables. A clear direction happens when there is either:
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Sketchy Rendering for Information Visualization.

J Wood1, P Isenberg, T Isenberg

  • 1giCentre, City University London. j.d.wood@city.ac.uk

IEEE Transactions on Visualization and Computer Graphics
|September 11, 2015
PubMed
Summary
This summary is machine-generated.

This study introduces a framework for creating hand-drawn style information visualizations. While sketchiness can increase engagement, it may impair accurate area judgments in data graphics.

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Area of Science:

  • Computer Graphics
  • Information Visualization
  • Human-Computer Interaction

Background:

  • Traditional data visualizations often lack aesthetic appeal and user engagement.
  • Sketching is traditionally used for prototyping or indicating uncertainty in visualizations.

Purpose of the Study:

  • To develop and evaluate a framework for generating sketchy information visualizations.
  • To investigate the impact of sketchy visualizations on user perception and engagement.

Main Methods:

  • Developed an alternative renderer for the Processing graphics environment to create sketchy drawing primitives.
  • Implemented higher-level graphical features (bar charts, treemaps, etc.) in a sketchy style.
  • Conducted user studies to evaluate perception of sketchiness, area judgment, and engagement.

Main Results:

  • Sketchy rendering compromises relative area judgment, with effects varying by shape.
  • Users can judge the degree of sketchiness on an ordinal scale, but with individual variation.
  • Sketchy visualizations can increase user engagement and willingness to critique designs.

Conclusions:

  • The framework enables the creation of aesthetically pleasing and engaging sketchy visualizations.
  • Sketchiness impacts quantitative judgments but can enhance qualitative aspects of visualization.
  • Findings suggest novel applications for sketchy visualization beyond prototyping and uncertainty indication.