Pub diagrams happen to be one of least difficult and the most commonly used devices of presenting almost all of the business and economic info. These are satisfactory for categorical data or perhaps series. That they consist a grouping of equidistant rectangles, one of each group or category of the data in which the principles or the magnitudes are symbolized by the duration or height of the rectangles, the width of the rectangles being arbitrary and unimportant. These diagrams are called one-dimensional because in such blueprints only one dimensions viz., height (or length) of the rectangles is taken into account to present the given principles. The following items may be borne in mind to draw tavern diagrams. we. All the pubs drawn in a single study ought to be uniform (through arbitrary) width depending on the range of bars to get drawn as well as the space offered. ii. Correct but homogeneous spacing must be given between different pubs to make the diagram look more appealing and elegant. iii. The height (length) of the rectangles or pubs are considered proportional to magnitude from the observations, the size being selected keeping because the size of the largest observation. 4. All the pubs should be created on the same base line. v. It is attractive to write the figures (magnitudes) represented by bars at the top of the bars to enable the reader to have a correct idea of the significance without looking at the scale. ni. Bars may be drawn vertically or flat. However , in practise, top to bottom bars are generally used mainly because they give a good and interesting get up. vii. Wherever possible the bars ought to be arranged via left to right (from top to bottom in case there is horizontal bars) in order of magnitude to give a pleasing effect.
Types of Bar Diagrams. The following are the many types of bar blueprints in common make use of: a) Straightforward bar picture.
b) Sub-divided or element bar picture.
c) Percentage bar plan.
d) Multiple bar diagram.
e) Change or...