import React from 'react'; import { letterFrequency } from '@visx/mock-data'; import { Group } from '@visx/group'; import { Bar } from '@visx/shape'; import { scaleLinear, scaleBand } from '@visx/scale'; // We'll use some mock data from `@visx/mock-data` for this. const data = letterFrequency; // Define the graph dimensions and margins const width = 500; const height = 500; const margin = { top: 2

