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Qu'est-ce (qui) est observation vector - définition
DISTINCT UNIT FROM WHICH DATA HAVE BEEN OR WILL BE GATHERED. TOGETHER, THE UNIT OF OBSERVATION AND THE LEVEL OF ANALYSIS HELP DEFINE THE POPULATION OF A RESEARCH ENTERPRISE
Data point; Data points; Data vector; Observation (statistics); Observation unit
free vector
GEOMETRIC OBJECT THAT HAS MAGNITUDE (OR LENGTH) AND DIRECTION
Vector (classical mechanics); Three-vector; Vector sum; Vector addition; Spatial vector; Vector (physics); Vector subtraction; Relative vector; Spacial vector; Physical vector; Vector methods (physics); Vector component; Component (vector); Bound vector; Vector (spatial); Vector (geometry); Free vector; Vector (geometric); Triangle law; Euclidean vectors; Vector direction; Vector components; 3d vector; Euclid vector; 3D vector; Geometric vector; Magnitude of resultant vector; Euclidian vector; Vector quantity; Resultant vector; Antiparallel vectors
¦ noun Mathematics a vector of which only the magnitude and direction are specified, not the position or line of action.
Disease vector
![deer tick]], a vector for [[Lyme disease]] pathogens](https://commons.wikimedia.org/wiki/Special:FilePath/Adult deer tick(cropped).jpg?width=200 "deer tick]], a vector for [[Lyme disease]] pathogens")
![Figure 1. This figure shows how the [[Flavivirus]] is carried by [[mosquito]]s in the [[West Nile virus]] and [[Dengue fever]]. The mosquito would be considered a disease vector.](https://commons.wikimedia.org/wiki/Special:FilePath/Disease Vector.jpg?width=200 "Figure 1. This figure shows how the [[Flavivirus]] is carried by [[mosquito]]s in the [[West Nile virus]] and [[Dengue fever]]. The mosquito would be considered a disease vector.")
AGENT THAT CARRIES AND TRANSMITS AN INFECTIOUS PATHOGEN INTO ANOTHER LIVING ORGANISM
Vector species; Insect-borne disease; Vector (epidemiology); Vector borne transmission; Vector (disease); Vector (parasitology); Insect vectors; Disease vectors; Insect vector; Contagion vector; Vector-borne disease; Disease-vector; Draft:Vector-Borne Disease; Vector competence; Vector-borne
In epidemiology, a disease vector is any living agent that carries and transmits an infectious pathogen to another living organism; agents regarded as vectors are organisms, such as parasites or microbes. The first major discovery of a disease vector came from Ronald Ross in 1897, who discovered the malaria pathogen when he dissected a mosquito.
vector graphics
![Example showing comparison of vector graphics and [[raster graphics]] upon [[magnification]]](https://commons.wikimedia.org/wiki/Special:FilePath/Bitmap VS SVG.svg?width=200 "Example showing comparison of vector graphics and [[raster graphics]] upon [[magnification]]")
![vectorization]]](https://commons.wikimedia.org/wiki/Special:FilePath/Phone.jpg?width=200 "vectorization]]")
![Asteroids]]''-like video game played on a [[vector monitor]]](https://commons.wikimedia.org/wiki/Special:FilePath/Space Rocks (game).jpg?width=200 "Asteroids]]''-like video game played on a [[vector monitor]]")
![This vector-based (SVG format) image of a round four-color swirl displays several unique features of vector graphics versus raster graphics: there is no [[aliasing]] along the rounded edge (which would result in [[digital artifacts]] in a raster graphic), the [[color gradient]]s are all smooth, and the user can resize the image infinitely without losing any quality.](https://commons.wikimedia.org/wiki/Special:FilePath/Vector-based example.svg?width=200 "This vector-based (SVG format) image of a round four-color swirl displays several unique features of vector graphics versus raster graphics: there is no [[aliasing]] along the rounded edge (which would result in [[digital artifacts]] in a raster graphic), the [[color gradient]]s are all smooth, and the user can resize the image infinitely without losing any quality.")
COMPUTER GRAPHICS IMAGES DEFINED BY POINTS, LINES AND CURVES
Vector art; Vector Art; X-Y monitor; Xy monitor; Vector Graphics; Vector image; Vector drawing; Vector images; Object-oriented graphics; Object-Oriented Graphics; Vector version; Vector software; Vectorgraphic; Vector drawings; Vector graphic; Vector illustration; Vector image format; Conversion of vector graphics file formats; Vector artwork; Vector format
<graphics> (Sometimes called "object-oriented" graphics,
though it's nothing to do with object-oriented programming).
The representation of separate shapes such as lines, polygons
and text, and groups of such objects, as opposed to bitmaps.
The advantage of vector graphics ("drawing") programs over
bitmap ("paint") editors is that multiple overlapping elements
can be manipulated independently without using differenet
layers for each one. It is also easier to render an object at
different sizes and to transform it in other ways without
worrying about image resolution and pixels.
(2001-02-06)
Wikipédia
Unit of observation
In statistics, a unit of observation is the unit described by the data that one analyzes. A study may treat groups as a unit of observation with a country as the unit of analysis, drawing conclusions on group characteristics from data collected at the national level. For example, in a study of the demand for money, the unit of observation might be chosen as the individual, with different observations (data points) for a given point in time differing as to which individual they refer to; or the unit of observation might be the country, with different observations differing only in regard to the country they refer to.
