是否可以在Rmarkdown中定义信头标题？

Question

R大师，

我正在努力在Rmarkdown中为大规模邮件合并项目设计一个信头模板。

我理想需要的是以下内容：

问题是是否可以在YAML中定义标题？代码可能如下所示：

const path = require("path");
const webpack = require("webpack");
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const merge = require("webpack-merge");
const treeShakableModules = [
    "@angular/animations",
    "@angular/cdk",
    "@angular/common",
    "@angular/compiler",
    "@angular/core",
    "@angular/forms",
    "@angular/http",
    "@angular/material",
    "@angular/platform-browser",
    "@angular/platform-browser-dynamic",
    "@angular/router",
    "@asymmetrik/ngx-leaflet",
    "@progress/kendo-angular-charts",
    "@progress/kendo-angular-inputs",
    "@progress/kendo-angular-intl",
    "@progress/kendo-angular-l10n",
    "@progress/kendo-drawing",
    "@progress/kendo-file-saver",
    "zone.js"
];
const nonTreeShakableModules = [
    "@progress/kendo-theme-default/dist/all.css",
    "ag-grid-angular",
    "ag-grid",
    "ag-grid-enterprise/dist/ag-grid-enterprise.js",
    "ag-grid/dist/styles/ag-grid.css",
    "ag-grid/src/styles/ag-theme-material.scss",
    "bootstrap",
    "bootstrap/dist/css/bootstrap.css",
    "es6-promise",
    "es6-shim",
    "event-source-polyfill",
    "exceljs/dist/exceljs.min.js",
    "file-saver",
    "font-awesome/css/font-awesome.css",
    "hammerjs",
    "jquery",
    "jquery-ui-dist/jquery-ui",
    "leaflet",
    "leaflet/dist/leaflet.css",
    "lodash",
    "moment",
    "ngx-bootstrap",
    "tether",
    "sheetjs",
    "xlsx",
    "./ClientApp/theme/material/js/material.js",
    "./ClientApp/theme/material/js/ripples.js",
    "./ClientApp/theme/material/css/bootstrap-material-design.css",
    "./ClientApp/theme/material/css/ripples.css"
];
const allModules = treeShakableModules.concat(nonTreeShakableModules);

module.exports = (env) => {
    const extractCSS = new ExtractTextPlugin("vendor.css");
    const isDevBuild = !(env && env.prod);
    //const isDevBuild = false;
    const sharedConfig = {
        stats: { modules: false },
        resolve: {
            extensions: [".js"]
        },
        module: {
            rules: [
                { test: /\.(png|gif|jpg|jpeg|woff|woff2|eot|ttf|svg)(\?|$)/, use: "url-loader?limit=100000" },
                { test: /\.scss$/, use: ["raw-loader", "sass-loader"] }
            ]
        },
        output: {
            publicPath: "dist/",
            filename: "[name].js",
            library: "[name]_[hash]"
        },
        plugins: [
            new webpack.ProvidePlugin({ $: "jquery", jQuery: "jquery", jquery: "jquery", "window.jQuery": "jquery", "_": "lodash" }), // Maps these identifiers to the jQuery package (because Bootstrap expects it to be a global variable)
            new webpack.ContextReplacementPlugin(/\@angular\b.*\b(bundles|linker)/, path.join(__dirname, "./ClientApp")), // Workaround for https://github.com/angular/angular/issues/11580
            new webpack.ContextReplacementPlugin(/\@angular(\\|\/)core(\\|\/)esm5/, path.join(__dirname, "./ClientApp")), 
            new webpack.ContextReplacementPlugin(/angular(\\|\/)core(\\|\/)@angular/, path.join(__dirname, "./ClientApp")), // Workaround for https://github.com/angular/angular/issues/14898
            new webpack.IgnorePlugin(/^vertx$/) // Workaround for https://github.com/stefanpenner/es6-promise/issues/100
        ]
    };

    const clientBundleConfig = merge(sharedConfig, {
        entry: {
            // To keep development builds fast, include all vendor dependencies in the vendor bundle.
            // But for production builds, leave the tree-shakable ones out so the AOT compiler can produce a smaller bundle.
            vendor: isDevBuild ? allModules : nonTreeShakableModules
        },
        output: { path: path.join(__dirname, "wwwroot", "dist") },
        module: {
            rules: [
                { test: /\.css(\?|$)/, use: extractCSS.extract({ use: isDevBuild ? "css-loader" : "css-loader?minimize" }) }
            ]
        },
        plugins: [
            extractCSS,
            new webpack.DllPlugin({
                path: path.join(__dirname, "wwwroot", "dist", "[name]-manifest.json"),
                name: "[name]_[hash]"
            })
        ].concat(isDevBuild ? [] : [
            new webpack.optimize.UglifyJsPlugin()
        ])
    });

    const serverBundleConfig = merge(sharedConfig, {
        target: "node",
        resolve: { mainFields: ["main"] },
        entry: { vendor: allModules.concat(["aspnet-prerendering"]) },
        output: {
            path: path.join(__dirname, "ClientApp", "dist"),
            libraryTarget: "commonjs2"
        },
        module: {
            rules: [{ test: /\.css(\?|$)/, use: ["to-string-loader", isDevBuild ? "css-loader" : "css-loader?minimize"] }]
        },
        plugins: [
            new webpack.DllPlugin({
                path: path.join(__dirname, "ClientApp", "dist", "[name]-manifest.json"),
                name: "[name]_[hash]"
            })
        ]
    });

    return [clientBundleConfig, serverBundleConfig];
}

Answer 1

---
title: "Prof. Jones  \nDepartment  \nUniversity  \nState  \nEmail"
output: pdf_document
editor_options: 
  chunk_output_type: console
header-includes:
  - \usepackage{titling}
  - \usepackage{graphicx} 
  - \usepackage{fancyhdr}
  - \pagestyle{fancy}
  - \pretitle{\begin{flushright}\LARGE\includegraphics[width=8cm]{logo.jpg}\\[\bigskipamount]}
  - \posttitle{\end{flushright}}
---

将徽标添加到{logo.jpg}所在的位置，宽度也可能需要更改。

使用双倍空格和\n在行头添加换行符以创建地址的解决方法。

flushright右对齐徽标和标题。