{{target: component-dataset}}

dataset(Object)

dataset component is published since ECharts 4. dataset brings convenience in data management separated with styles and enables data reuse by different series. More importantly, is enables data encoding from data to visual, which brings convenience in some scenarios.

More details about dataset can be checked in the tutorial.

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{{use: partial-component-id(prefix=“#”)}}

source(Array|Object)

Source data. Generally speaking, a source data describe a table, where these format below can be applied:

2d array, where dimension names can be provided in the first row/column, or do not provide, only data.

[
    ['product', '2015', '2016', '2017'],
    ['Matcha Latte', 43.3, 85.8, 93.7],
    ['Milk Tea', 83.1, 73.4, 55.1],
    ['Cheese Cocoa', 86.4, 65.2, 82.5],
    ['Walnut Brownie', 72.4, 53.9, 39.1]
]

Row based key-value format (object array), where the keys indicate dimension names.

[
    {product: 'Matcha Latte', count: 823, score: 95.8},
    {product: 'Milk Tea', count: 235, score: 81.4},
    {product: 'Cheese Cocoa', count: 1042, score: 91.2},
    {product: 'Walnut Brownie', count: 988, score: 76.9}
]

Column based key-value format, where each value represents a column of a table.

{
    'product': ['Matcha Latte', 'Milk Tea', 'Cheese Cocoa', 'Walnut Brownie'],
    'count': [823, 235, 1042, 988],
    'score': [95.8, 81.4, 91.2, 76.9]
}

More details about dataset can be checked in the tutorial.

{{use:partial-series-dimensions( prefix=“#” )}}

sourceHeader(boolean)

Whether the first row/column of dataset.source represents dimension names. Optional values:

• null/undefine: means auto detect whether the first row/column is dimension names or data.
• true: the first row/column is dimension names.
• false: data start from the first row/column.

Note: “the first row/column” means that if series.seriesLayoutBy is set as 'column', pick the first row, otherwise, if it is set as 'row', pick the first column.