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.
The River Congo got its name from the Kingdom of Kongo which was situated on the left banks of the river estuary. The kingdom is in turn named for its Bantu population, in the 17th century reported as Esikongo. South of the Kongo kingdom proper lay the similarly named Kakongo kingdom, mentioned in 1535.easured along the Lualaba, the Congo River has a total length of 4,370 km (2,715 mi), The Congo Basin has a total area of about 4 million km 2, or 13% of the entire African landmass.