feat: add dmeanli, dmeanlipw, dmeanpn, dmeanpw to namespace

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---

Author: kgryte

lib/node_modules/@stdlib/stats/base/ndarray/lib/index.js

@@ -171,6 +171,42 @@ setReadOnly( ns, 'dmeankbn', require( '@stdlib/stats/base/ndarray/dmeankbn' ) );
 */
 setReadOnly( ns, 'dmeankbn2', require( '@stdlib/stats/base/ndarray/dmeankbn2' ) );
 
+/**
+* @name dmeanli
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/base/ndarray/dmeanli}
+*/
+setReadOnly( ns, 'dmeanli', require( '@stdlib/stats/base/ndarray/dmeanli' ) );
+
+/**
+* @name dmeanlipw
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/base/ndarray/dmeanlipw}
+*/
+setReadOnly( ns, 'dmeanlipw', require( '@stdlib/stats/base/ndarray/dmeanlipw' ) );
+
+/**
+* @name dmeanpn
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/base/ndarray/dmeanpn}
+*/
+setReadOnly( ns, 'dmeanpn', require( '@stdlib/stats/base/ndarray/dmeanpn' ) );
+
+/**
+* @name dmeanpw
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/base/ndarray/dmeanpw}
+*/
+setReadOnly( ns, 'dmeanpw', require( '@stdlib/stats/base/ndarray/dmeanpw' ) );
+
 /**
 * @name dmin
 * @memberof ns