The stacked bar chart stacks bars that represent different groups on top of each other. The height of the resulting bar shows the combined result of the groups. However, stacked bar charts are not suited to datasets where some groups have negative values.
The Bakongo, or the Kongo people (Kongo : âhuntersâ), also referred to as the Congolese, are a Bantu ethnic group who live along the Atlantic coast of Africa from Pointe-Noire (Republic of Congo) to Luanda, Angola. They are primarily defined by the speaking of Kikongo, a common language.he Bakongo, or the Kongo people (Kongo : âhuntersâ), also referred to as the Congolese, are a Bantu ethnic group who live along the Atlantic coast of Africa from Pointe-Noire (Republic of Congo) to Luanda, Angola. They are primarily defined by the speaking of Kikongo, a common language.
In North Africa they are known as Berbers, the original people before the Arab invasion of North Africa, they were known to the ancient Greeks and Romans as âbarbarians,â the Tuaregs of Nigeria, Niger, Chad, etc. are a Berber people. [Editors note: the Kanuris of North-Eastern Nigeria are known as the Iberi-beris.t is fairly certain that the Berbers of that region in that period, as in the 10th century were of Masmuda stock mainly composed of the ethnic Ghumara (Park, T. K. and Boum, A., 2006, p. 240; Taha, A.D., 1989, p. 26), who are today rather much fairer in complexion..