Log Scale
const config = {
type: 'line',
data: data,
options: {
responsive: true,
plugins: {
title: {
display: true,
text: 'Chart.js Line Chart - Logarithmic'
}
},
scales: {
x: {
display: true,
},
y: {
display: true,
type: 'logarithmic',
}
}
},
};
const DATA_COUNT = 7;
const NUMBER_CFG = {count: DATA_COUNT, min: 0, max: 100};
const labels = Utils.months({count: 7});
const data = {
labels: labels,
datasets: [
{
label: 'Dataset 1',
data: logNumbers(DATA_COUNT),
borderColor: Utils.CHART_COLORS.red,
backgroundColor: Utils.CHART_COLORS.red,
fill: false,
},
]
};
const logNumbers = (num) => {
const data = [];
for (let i = 0; i < num; ++i) {
data.push(Math.ceil(Math.random() * 10.0) * Math.pow(10, Math.ceil(Math.random() * 5)));
}
return data;
};
const actions = [
{
name: 'Randomize',
handler(chart) {
chart.data.datasets.forEach(dataset => {
dataset.data = logNumbers(chart.data.labels.length);
});
chart.update();
}
},
];
Docs