当我运行警告
RDotNet.NativeLibrary.UnmanagedDll.SetDllDirectory(string) is obsolete Set environment variable 'PATH' instead.
我不知道该怎么做。如何设置变量路径请快速帮助。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using RDotNet;
namespace WindowsFormsApplication7
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
string dlldir = @"C:\Program Files\R\R-3.1.1\bin\x64";
REngine.SetDllDirectory(dlldir);
REngine.CreateInstance("RDotNet");
}
private void button1_Click(object sender, EventArgs e)
{
REngine engine = REngine.GetInstanceFromID("RDotNet");
try
{
// import csv file
engine.Evaluate("dataset<-read.table(file.choose(), header=TRUE, sep = ',')");
// retrieve the data frame
DataFrame dataset = engine.Evaluate("dataset").AsDataFrame();
for (int i = 0; i < dataset.ColumnCount; ++i)
{
dataGridView1.ColumnCount++;
dataGridView1.Columns[i].Name = dataset.ColumnNames[i];
}
for (int i = 0; i < dataset.RowCount; ++i)
{
dataGridView1.RowCount++;
dataGridView1.Rows[i].HeaderCell.Value = dataset.RowNames[i];
for (int k = 0; k < dataset.ColumnCount; ++k)
{
dataGridView1[k, i].Value = dataset[i,k];
}
}
}
catch
{
MessageBox.Show(@"Equation error.");
}
}
}
}
最佳答案
如果您想知道如何在 Windows 中设置或编辑环境变量,可以使用此链接:
PATH 包含多个地址,也许您应该将您的 dlldir
地址添加到此变量。
关于c# - 将 R 与 RdotNet 连接时显示设置环境变量 'PATH',我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/25480961/