新测试集上的NARX神经网络测试？

Question

在训练NARX net之后。我想在独立测试集“testX”上评估模型。但是它给我一个错误。我正在通过forecastLoad = sim（net，testX'）来测试模型。我们需要吗？还要在测试集中添加延迟？我不知道我在哪里犯了错误。

clearstatcache();
$filename = $_SERVER['DOCUMENT_ROOT'] . "/wordpress/wp-content/themes/mytheme/images/thumbnails/sb1778/1.jpg";
$URL = get_template_directory_uri() . "/images/thumbnails/sb1778/1.jpg";



if (file_exists($filename)) {
    echo "<BR> The file exists";
} else {
    echo "<BR> The file does NOT exist";
}

if((imagejpeg($filename)) === true)
{echo "<BR> Imagejpeg: TRUE";}
else {echo "<BR>  Imagejpeg: FALSE";}
imagejpeg($filename);

if((imagejpeg($URL)) === true)
{echo "<BR> Imagejpeg: TRUE";}
else {echo "<BR>  Imagejpeg: FALSE";}
imagejpeg($URL);




if (is_writable($filename )) { 
    echo '<BR> The file is writable';
} else { echo '<BR> The file is NOT writable';
}