diff --git a/CHANGELOG.md b/CHANGELOG.md
index a796f5f..c16da36 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@
+- [`b87254d`](https://github.com/stdlib-js/stdlib/commit/b87254d4535a3b90bf3d0068750ed6e9ca5dbc85) - **docs:** fix parameter descriptions in Weibull distribution packages _(by Philipp Burckhardt)_
- [`f9f468e`](https://github.com/stdlib-js/stdlib/commit/f9f468e240d7e5b5d155279e4386b8b606cd8227) - **feat:** add C implementation of `stats/base/dists/weibull/cdf` _(by Vinit Pandit, Philipp Burckhardt)_
diff --git a/README.md b/README.md
index e7da764..be72582 100644
--- a/README.md
+++ b/README.md
@@ -222,8 +222,8 @@ double out = stdlib_base_dists_weibull_cdf( 2.0, 1.0, 1.0 );
The function accepts the following arguments:
- **x**: `[in] double` input value.
-- **k**: `[in] double` scale parameter.
-- **lambda**: `[in] double` shape parameter.
+- **k**: `[in] double` shape parameter.
+- **lambda**: `[in] double` scale parameter.
```c
double stdlib_base_dists_weibull_cdf( const double x, const double k, const double lambda );
diff --git a/dist/index.js.map b/dist/index.js.map
index ade897c..c68680a 100644
--- a/dist/index.js.map
+++ b/dist/index.js.map
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["../lib/main.js", "../lib/factory.js", "../lib/index.js"],
- "sourcesContent": ["/**\n* @license Apache-2.0\n*\n* Copyright (c) 2018 The Stdlib Authors.\n*\n* Licensed under the Apache License, Version 2.0 (the \"License\");\n* you may not use this file except in compliance with the License.\n* You may obtain a copy of the License at\n*\n* http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing, software\n* distributed under the License is distributed on an \"AS IS\" BASIS,\n* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n* See the License for the specific language governing permissions and\n* limitations under the License.\n*/\n\n'use strict';\n\n// MODULES //\n\nvar isnan = require( '@stdlib/math-base-assert-is-nan' );\nvar expm1 = require( '@stdlib/math-base-special-expm1' );\nvar pow = require( '@stdlib/math-base-special-pow' );\n\n\n// MAIN //\n\n/**\n* Evaluates the cumulative distribution function (CDF) for a Weibull distribution with scale parameter `k` and shape parameter `lambda` at a value `x`.\n*\n* @param {number} x - input value\n* @param {PositiveNumber} k - scale parameter\n* @param {PositiveNumber} lambda - shape parameter\n* @returns {Probability} evaluated CDF\n*\n* @example\n* var y = cdf( 2.0, 1.0, 1.0 );\n* // returns ~0.865\n*\n* @example\n* var y = cdf( -1.0, 2.0, 2.0 );\n* // returns 0.0\n*\n* @example\n* var y = cdf( +Infinity, 4.0, 2.0 );\n* // returns 1.0\n*\n* @example\n* var y = cdf( -Infinity, 4.0, 2.0 );\n* // returns 0.0\n*\n* @example\n* var y = cdf( NaN, 0.0, 1.0 );\n* // returns NaN\n*\n* @example\n* var y = cdf( 0.0, NaN, 1.0 );\n* // returns NaN\n*\n* @example\n* var y = cdf( 0.0, 0.0, NaN );\n* // returns NaN\n*\n* @example\n* var y = cdf( 2.0, 0.0, -1.0 );\n* // returns NaN\n*/\nfunction cdf( x, k, lambda ) {\n\tif (\n\t\tisnan( x ) ||\n\t\tisnan( k ) ||\n\t\tisnan( lambda ) ||\n\t\tk <= 0.0 ||\n\t\tlambda <= 0.0\n\t) {\n\t\treturn NaN;\n\t}\n\tif ( x < 0.0 ) {\n\t\treturn 0.0;\n\t}\n\treturn -expm1( -pow( x / lambda, k ) );\n}\n\n\n// EXPORTS //\n\nmodule.exports = cdf;\n", "/**\n* @license Apache-2.0\n*\n* Copyright (c) 2018 The Stdlib Authors.\n*\n* Licensed under the Apache License, Version 2.0 (the \"License\");\n* you may not use this file except in compliance with the License.\n* You may obtain a copy of the License at\n*\n* http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing, software\n* distributed under the License is distributed on an \"AS IS\" BASIS,\n* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n* See the License for the specific language governing permissions and\n* limitations under the License.\n*/\n\n'use strict';\n\n// MODULES //\n\nvar constantFunction = require( '@stdlib/utils-constant-function' );\nvar isnan = require( '@stdlib/math-base-assert-is-nan' );\nvar expm1 = require( '@stdlib/math-base-special-expm1' );\nvar pow = require( '@stdlib/math-base-special-pow' );\n\n\n// MAIN //\n\n/**\n* Returns a function for evaluating the cumulative distribution function (CDF) for a Weibull distribution.\n*\n* @param {PositiveNumber} k - scale parameter\n* @param {PositiveNumber} lambda - shape parameter\n* @returns {Function} CDF\n*\n* @example\n* var cdf = factory( 2.0, 10.0 );\n* var y = cdf( 12.0 );\n* // returns ~0.763\n*\n* y = cdf( 8.0 );\n* // returns ~0.473\n*/\nfunction factory( k, lambda ) {\n\tif (\n\t\tisnan( k ) ||\n\t\tisnan( lambda ) ||\n\t\tk <= 0.0 ||\n\t\tlambda <= 0.0\n\t) {\n\t\treturn constantFunction( NaN );\n\t}\n\treturn cdf;\n\n\t/**\n\t* Evaluates the cumulative distribution function (CDF) for a Weibull distribution.\n\t*\n\t* @private\n\t* @param {number} x - input value\n\t* @returns {Probability} evaluated CDF\n\t*\n\t* @example\n\t* var y = cdf( 2.0 );\n\t* // returns \n\t*/\n\tfunction cdf( x ) {\n\t\tif ( isnan( x ) ) {\n\t\t\treturn NaN;\n\t\t}\n\t\tif ( x < 0.0 ) {\n\t\t\treturn 0.0;\n\t\t}\n\t\treturn -expm1( -pow( x / lambda, k ) );\n\t}\n}\n\n\n// EXPORTS //\n\nmodule.exports = factory;\n", "/**\n* @license Apache-2.0\n*\n* Copyright (c) 2018 The Stdlib Authors.\n*\n* Licensed under the Apache License, Version 2.0 (the \"License\");\n* you may not use this file except in compliance with the License.\n* You may obtain a copy of the License at\n*\n* http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing, software\n* distributed under the License is distributed on an \"AS IS\" BASIS,\n* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n* See the License for the specific language governing permissions and\n* limitations under the License.\n*/\n\n'use strict';\n\n/**\n* Weibull distribution cumulative distribution function (CDF).\n*\n* @module @stdlib/stats-base-dists-weibull-cdf\n*\n* @example\n* var cdf = require( '@stdlib/stats-base-dists-weibull-cdf' );\n*\n* var y = cdf( 2.0, 1.0, 1.0 );\n* // returns ~0.865\n*\n* var myCDF = cdf.factory( 2.0, 10.0 );\n* y = myCDF( 12.0 );\n* // returns ~0.763\n*/\n\n// MODULES //\n\nvar setReadOnly = require( '@stdlib/utils-define-nonenumerable-read-only-property' );\nvar main = require( './main.js' );\nvar factory = require( './factory.js' );\n\n\n// MAIN //\n\nsetReadOnly( main, 'factory', factory );\n\n\n// EXPORTS //\n\nmodule.exports = main;\n"],
+ "sourcesContent": ["/**\n* @license Apache-2.0\n*\n* Copyright (c) 2018 The Stdlib Authors.\n*\n* Licensed under the Apache License, Version 2.0 (the \"License\");\n* you may not use this file except in compliance with the License.\n* You may obtain a copy of the License at\n*\n* http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing, software\n* distributed under the License is distributed on an \"AS IS\" BASIS,\n* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n* See the License for the specific language governing permissions and\n* limitations under the License.\n*/\n\n'use strict';\n\n// MODULES //\n\nvar isnan = require( '@stdlib/math-base-assert-is-nan' );\nvar expm1 = require( '@stdlib/math-base-special-expm1' );\nvar pow = require( '@stdlib/math-base-special-pow' );\n\n\n// MAIN //\n\n/**\n* Evaluates the cumulative distribution function (CDF) for a Weibull distribution with scale parameter `k` and shape parameter `lambda` at a value `x`.\n*\n* @param {number} x - input value\n* @param {PositiveNumber} k - shape parameter\n* @param {PositiveNumber} lambda - scale parameter\n* @returns {Probability} evaluated CDF\n*\n* @example\n* var y = cdf( 2.0, 1.0, 1.0 );\n* // returns ~0.865\n*\n* @example\n* var y = cdf( -1.0, 2.0, 2.0 );\n* // returns 0.0\n*\n* @example\n* var y = cdf( +Infinity, 4.0, 2.0 );\n* // returns 1.0\n*\n* @example\n* var y = cdf( -Infinity, 4.0, 2.0 );\n* // returns 0.0\n*\n* @example\n* var y = cdf( NaN, 0.0, 1.0 );\n* // returns NaN\n*\n* @example\n* var y = cdf( 0.0, NaN, 1.0 );\n* // returns NaN\n*\n* @example\n* var y = cdf( 0.0, 0.0, NaN );\n* // returns NaN\n*\n* @example\n* var y = cdf( 2.0, 0.0, -1.0 );\n* // returns NaN\n*/\nfunction cdf( x, k, lambda ) {\n\tif (\n\t\tisnan( x ) ||\n\t\tisnan( k ) ||\n\t\tisnan( lambda ) ||\n\t\tk <= 0.0 ||\n\t\tlambda <= 0.0\n\t) {\n\t\treturn NaN;\n\t}\n\tif ( x < 0.0 ) {\n\t\treturn 0.0;\n\t}\n\treturn -expm1( -pow( x / lambda, k ) );\n}\n\n\n// EXPORTS //\n\nmodule.exports = cdf;\n", "/**\n* @license Apache-2.0\n*\n* Copyright (c) 2018 The Stdlib Authors.\n*\n* Licensed under the Apache License, Version 2.0 (the \"License\");\n* you may not use this file except in compliance with the License.\n* You may obtain a copy of the License at\n*\n* http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing, software\n* distributed under the License is distributed on an \"AS IS\" BASIS,\n* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n* See the License for the specific language governing permissions and\n* limitations under the License.\n*/\n\n'use strict';\n\n// MODULES //\n\nvar constantFunction = require( '@stdlib/utils-constant-function' );\nvar isnan = require( '@stdlib/math-base-assert-is-nan' );\nvar expm1 = require( '@stdlib/math-base-special-expm1' );\nvar pow = require( '@stdlib/math-base-special-pow' );\n\n\n// MAIN //\n\n/**\n* Returns a function for evaluating the cumulative distribution function (CDF) for a Weibull distribution.\n*\n* @param {PositiveNumber} k - shape parameter\n* @param {PositiveNumber} lambda - scale parameter\n* @returns {Function} CDF\n*\n* @example\n* var cdf = factory( 2.0, 10.0 );\n* var y = cdf( 12.0 );\n* // returns ~0.763\n*\n* y = cdf( 8.0 );\n* // returns ~0.473\n*/\nfunction factory( k, lambda ) {\n\tif (\n\t\tisnan( k ) ||\n\t\tisnan( lambda ) ||\n\t\tk <= 0.0 ||\n\t\tlambda <= 0.0\n\t) {\n\t\treturn constantFunction( NaN );\n\t}\n\treturn cdf;\n\n\t/**\n\t* Evaluates the cumulative distribution function (CDF) for a Weibull distribution.\n\t*\n\t* @private\n\t* @param {number} x - input value\n\t* @returns {Probability} evaluated CDF\n\t*\n\t* @example\n\t* var y = cdf( 2.0 );\n\t* // returns \n\t*/\n\tfunction cdf( x ) {\n\t\tif ( isnan( x ) ) {\n\t\t\treturn NaN;\n\t\t}\n\t\tif ( x < 0.0 ) {\n\t\t\treturn 0.0;\n\t\t}\n\t\treturn -expm1( -pow( x / lambda, k ) );\n\t}\n}\n\n\n// EXPORTS //\n\nmodule.exports = factory;\n", "/**\n* @license Apache-2.0\n*\n* Copyright (c) 2018 The Stdlib Authors.\n*\n* Licensed under the Apache License, Version 2.0 (the \"License\");\n* you may not use this file except in compliance with the License.\n* You may obtain a copy of the License at\n*\n* http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing, software\n* distributed under the License is distributed on an \"AS IS\" BASIS,\n* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n* See the License for the specific language governing permissions and\n* limitations under the License.\n*/\n\n'use strict';\n\n/**\n* Weibull distribution cumulative distribution function (CDF).\n*\n* @module @stdlib/stats-base-dists-weibull-cdf\n*\n* @example\n* var cdf = require( '@stdlib/stats-base-dists-weibull-cdf' );\n*\n* var y = cdf( 2.0, 1.0, 1.0 );\n* // returns ~0.865\n*\n* var myCDF = cdf.factory( 2.0, 10.0 );\n* y = myCDF( 12.0 );\n* // returns ~0.763\n*/\n\n// MODULES //\n\nvar setReadOnly = require( '@stdlib/utils-define-nonenumerable-read-only-property' );\nvar main = require( './main.js' );\nvar factory = require( './factory.js' );\n\n\n// MAIN //\n\nsetReadOnly( main, 'factory', factory );\n\n\n// EXPORTS //\n\nmodule.exports = main;\n"],
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}
diff --git a/docs/types/index.d.ts b/docs/types/index.d.ts
index a111bd4..564dc00 100644
--- a/docs/types/index.d.ts
+++ b/docs/types/index.d.ts
@@ -38,8 +38,8 @@ interface CDF {
* - If provided a non-positive value for `lambda` or `k`, the function returns `NaN`.
*
* @param x - input value
- * @param k - scale parameter
- * @param lambda - shape parameter
+ * @param k - shape parameter
+ * @param lambda - scale parameter
* @returns evaluated CDF
*
* @example
@@ -79,8 +79,8 @@ interface CDF {
/**
* Returns a function for evaluating the cumulative distribution function (CDF) for a Weibull distribution.
*
- * @param k - scale parameter
- * @param lambda - shape parameter
+ * @param k - shape parameter
+ * @param lambda - scale parameter
* @returns CDF
*
* @example
@@ -98,8 +98,8 @@ interface CDF {
* Weibull distribution cumulative distribution function (CDF).
*
* @param x - input value
-* @param k - scale parameter
-* @param lambda - shape parameter
+* @param k - shape parameter
+* @param lambda - scale parameter
* @returns evaluated CDF
*
* @example
diff --git a/lib/factory.js b/lib/factory.js
index 42ebb6a..156b48d 100644
--- a/lib/factory.js
+++ b/lib/factory.js
@@ -31,8 +31,8 @@ var pow = require( '@stdlib/math-base-special-pow' );
/**
* Returns a function for evaluating the cumulative distribution function (CDF) for a Weibull distribution.
*
-* @param {PositiveNumber} k - scale parameter
-* @param {PositiveNumber} lambda - shape parameter
+* @param {PositiveNumber} k - shape parameter
+* @param {PositiveNumber} lambda - scale parameter
* @returns {Function} CDF
*
* @example
diff --git a/lib/main.js b/lib/main.js
index 93a96b1..ecdc4eb 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -31,8 +31,8 @@ var pow = require( '@stdlib/math-base-special-pow' );
* Evaluates the cumulative distribution function (CDF) for a Weibull distribution with scale parameter `k` and shape parameter `lambda` at a value `x`.
*
* @param {number} x - input value
-* @param {PositiveNumber} k - scale parameter
-* @param {PositiveNumber} lambda - shape parameter
+* @param {PositiveNumber} k - shape parameter
+* @param {PositiveNumber} lambda - scale parameter
* @returns {Probability} evaluated CDF
*
* @example
diff --git a/lib/native.js b/lib/native.js
index d63f6f7..0f8cac5 100644
--- a/lib/native.js
+++ b/lib/native.js
@@ -30,8 +30,8 @@ var addon = require( './../src/addon.node' );
*
* @private
* @param {number} x - input value
-* @param {PositiveNumber} k - scale parameter
-* @param {PositiveNumber} lambda - shape parameter
+* @param {PositiveNumber} k - shape parameter
+* @param {PositiveNumber} lambda - scale parameter
* @returns {Probability} evaluated CDF
*
* @example
diff --git a/src/main.c b/src/main.c
index be5f65b..c5ccc58 100644
--- a/src/main.c
+++ b/src/main.c
@@ -25,8 +25,8 @@
* Evaluates the cumulative distribution function (CDF) for a Weibull distribution with scale parameter `k` and shape parameter `lambda` at a value `x`.
*
* @param x input value
-* @param k scale parameter
-* @param lambda shape parameter
+* @param k shape parameter
+* @param lambda scale parameter
* @return evaluated CDF
*
* @example