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WEIBULL.DIST function

PRO BASIC

The WEIBULL.DIST function in Jspreadsheet Formulas Pro is a tool that provides the Weibull distribution, commonly utilized in reliability analysis. It assists in predicting the lifespan of products or the time until a specific event occurs. This function requires specific inputs such as the shape and scale parameters of the distribution. Using this function, you can perform advanced analyses within your Jspreadsheet projects.

Documentation

Returns the Weibull distribution, which is often used in reliability analysis.

Category

Statistical

Syntax

WEIBULL.DIST(x, alpha, beta, cumulative)

Parameter Description
x The value at which to evaluate the distribution.
alpha A parameter to set the shape of the distribution.
beta A parameter to set the scale of the distribution.
[cumulative] A logical value that indicates which form of the Weibull distribution to use:
TRUE or omitted: The cumulative distribution function
FALSE: The probability density function

Behavior

The WEIBULL.DIST function calculates the Weibull distribution, often used in reliability analysis and life data analysis. The function takes four arguments: x, alpha, beta, and cumulative.

  • If x is less than 0, or if alpha or beta is less than or equal to 0, the function will return an error.
  • If any argument is non-numeric, the function will return an error.
  • If any argument is a logical value or text, the function will attempt to convert it into a number. If unsuccessful, it will return an error.
  • Empty arguments will return a #VALUE! error, since all parameters must be numeric.
  • The cumulative argument is a logical value that determines the form of the function. If cumulative is TRUE, WEIBULL.DIST returns the cumulative distribution function; if it is FALSE, it returns the probability density function.

Common Errors

Error Description
#NUM! Occurs if the x value is less than 0, or if either alpha or beta is less than or equal to 0.
#VALUE! Occurs if any of the supplied arguments are non-numeric or cannot be logically interpreted as numeric.

Best practices

  • Always ensure the input parameters x, alpha, and beta are greater than 0 to avoid errors.
  • Be mindful of the cumulative argument. If you want to compute the cumulative distribution function, set cumulative to TRUE; set it to FALSE for the probability density function.
  • Use numeric values for arguments. While the function attempts to convert logical values and text to numbers, it's best to directly input numeric values for accuracy and error avoidance.
  • Keep in mind that the WEIBULL.DIST function is intended for advanced statistical analysis. Make sure you understand the implications of the Weibull distribution before using this function.

Usage

A few examples using the WEIBULL.DIST function.

WEIBULL.DIST(60, 2, 50, TRUE)
// Returns the cumulative distribution function (CDF) at x=60 
// with shape=2 and scale=50.

WEIBULL.DIST(100, 2, 50, FALSE)
// Returns the probability density function (PDF) at x=100 
// with shape=2 and scale=50.

WEIBULL.DIST(A2, B2, C2, TRUE)
// Returns the CDF of the Weibull distribution at the value in A2 
// using shape parameter in B2 and scale parameter in C2.

Interactive Spreadsheet Demo

<html>
<script src="https://jspreadsheet.com/v11/jspreadsheet.js"></script>
<script src="https://jsuites.net/v5/jsuites.js"></script>
<link rel="stylesheet" href="https://jsuites.net/v5/jsuites.css" type="text/css" />
<link rel="stylesheet" href="https://jspreadsheet.com/v11/jspreadsheet.css" type="text/css" />

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons" />
<script src="https://cdn.jsdelivr.net/npm/@jspreadsheet/formula-pro/dist/index.min.js"></script>

<div id="spreadsheet"></div>

<script>
// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

// Create a new spreadsheet
jspreadsheet(document.getElementById('spreadsheet'), {
  worksheets: [{
    data: [
    [
        "Time (hours)",
        "Alpha",
        "Beta",
        "Cumulative Prob",
        "Probability Density"
    ],
    [
        100,
        2,
        150,
        "=WEIBULL.DIST(A2,B2,C2,TRUE)",
        "=WEIBULL.DIST(A2,B2,C2,FALSE)"
    ],
    [
        200,
        1.5,
        180,
        "=WEIBULL.DIST(A3,B3,C3,TRUE)",
        "=WEIBULL.DIST(A3,B3,C3,FALSE)"
    ],
    [
        300,
        2.2,
        200,
        "=WEIBULL.DIST(A4,B4,C4,TRUE)",
        "=WEIBULL.DIST(A4,B4,C4,FALSE)"
    ],
    [
        500,
        1.8,
        250,
        "=WEIBULL.DIST(A5,B5,C5,TRUE)",
        "=WEIBULL.DIST(A5,B5,C5,FALSE)"
    ]
]
  }]
});
</script>
</html>

import React, { useRef } from "react";
import { Spreadsheet, Worksheet, jspreadsheet } from "@jspreadsheet/react";
import formula from "@jspreadsheet/formula-pro";
import "jsuites/dist/jsuites.css";
import "jspreadsheet/dist/jspreadsheet.css";

// Set license
jspreadsheet.setLicense('NjU0NDMwN2M2ZjgyNzQ2M2JhNTExNDExZjA3NTUzYjUyNTMzOTAxMjc3YTEwZTQ2YmY2OTMyZDA0MjcyMGRlNWZjMjJjNmEwNTE3NmQ3ZGQ4MDgwODM3Zjk2MjlkMTM4YjkwMTkzYjk2ZGJjMTZkYzgzM2U2MWZjYjYwZTVjOWYsZXlKamJHbGxiblJKWkNJNklpSXNJbTVoYldVaU9pSktjM0J5WldGa2MyaGxaWFFpTENKa1lYUmxJam94TnpVNE56YzBNemt4TENKa2IyMWhhVzRpT2xzaWFuTndjbVZoWkhOb1pXVjBMbU52YlNJc0ltTnZaR1Z6WVc1a1ltOTRMbWx2SWl3aWFuTm9aV3hzTG01bGRDSXNJbU56WWk1aGNIQWlMQ0p6ZEdGamEySnNhWFI2TG1sdklpd2lkMlZpWTI5dWRHRnBibVZ5TG1sdklpd2lkMlZpSWl3aWJHOWpZV3hvYjNOMElsMHNJbkJzWVc0aU9pSXpOQ0lzSW5OamIzQmxJanBiSW5ZM0lpd2lkamdpTENKMk9TSXNJbll4TUNJc0luWXhNU0lzSW1Ob1lYSjBjeUlzSW1admNtMXpJaXdpWm05eWJYVnNZU0lzSW5CaGNuTmxjaUlzSW5KbGJtUmxjaUlzSW1OdmJXMWxiblJ6SWl3aWFXMXdiM0owWlhJaUxDSmlZWElpTENKMllXeHBaR0YwYVc5dWN5SXNJbk5sWVhKamFDSXNJbkJ5YVc1MElpd2ljMmhsWlhSeklpd2lZMnhwWlc1MElpd2ljMlZ5ZG1WeUlpd2ljMmhoY0dWeklpd2labTl5YldGMElsMHNJbVJsYlc4aU9uUnlkV1Y5');

// Set the extensions
jspreadsheet.setExtensions({ formula });

export default function App() {
    // Spreadsheet array of worksheets
    const spreadsheet = useRef();

    // Worksheet data
    const data = [
    [
        "Time (hours)",
        "Alpha",
        "Beta",
        "Cumulative Prob",
        "Probability Density"
    ],
    [
        100,
        2,
        150,
        "=WEIBULL.DIST(A2,B2,C2,TRUE)",
        "=WEIBULL.DIST(A2,B2,C2,FALSE)"
    ],
    [
        200,
        1.5,
        180,
        "=WEIBULL.DIST(A3,B3,C3,TRUE)",
        "=WEIBULL.DIST(A3,B3,C3,FALSE)"
    ],
    [
        300,
        2.2,
        200,
        "=WEIBULL.DIST(A4,B4,C4,TRUE)",
        "=WEIBULL.DIST(A4,B4,C4,FALSE)"
    ],
    [
        500,
        1.8,
        250,
        "=WEIBULL.DIST(A5,B5,C5,TRUE)",
        "=WEIBULL.DIST(A5,B5,C5,FALSE)"
    ]
];

    // Render component
    return (
        <Spreadsheet ref={spreadsheet}>
            <Worksheet data={data} />
        </Spreadsheet>
    );
}

<template>
    <Spreadsheet ref="spreadsheet">
        <Worksheet :data="data" />
    </Spreadsheet>
</template>

<script>
import { Spreadsheet, Worksheet, jspreadsheet } from "@jspreadsheet/vue";
import "jsuites/dist/jsuites.css";
import "jspreadsheet/dist/jspreadsheet.css";
import formula from "@jspreadsheet/formula-pro";

// Set license
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

export default {
    components: {
        Spreadsheet,
        Worksheet,
    },
    data() {
        // Worksheet data
        const data = [
    [
        "Time (hours)",
        "Alpha",
        "Beta",
        "Cumulative Prob",
        "Probability Density"
    ],
    [
        100,
        2,
        150,
        "=WEIBULL.DIST(A2,B2,C2,TRUE)",
        "=WEIBULL.DIST(A2,B2,C2,FALSE)"
    ],
    [
        200,
        1.5,
        180,
        "=WEIBULL.DIST(A3,B3,C3,TRUE)",
        "=WEIBULL.DIST(A3,B3,C3,FALSE)"
    ],
    [
        300,
        2.2,
        200,
        "=WEIBULL.DIST(A4,B4,C4,TRUE)",
        "=WEIBULL.DIST(A4,B4,C4,FALSE)"
    ],
    [
        500,
        1.8,
        250,
        "=WEIBULL.DIST(A5,B5,C5,TRUE)",
        "=WEIBULL.DIST(A5,B5,C5,FALSE)"
    ]
]

        return {
            data
        };
    }
}
</script>

import { Component, ViewChild, ElementRef } from "@angular/core";
import jspreadsheet from "jspreadsheet";
import * as formula from "@jspreadsheet/formula-pro";

// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

@Component({
    standalone: true,
    selector: "app-root",
    template: `<div #spreadsheet></div>`
})
export class AppComponent {
    @ViewChild("spreadsheet") spreadsheet: ElementRef;
    // Worksheets
    worksheets: jspreadsheet.worksheetInstance[];

    // Create a new data grid
    ngAfterViewInit() {
        // Create spreadsheet
        this.worksheets = jspreadsheet(this.spreadsheet.nativeElement, {
            worksheets: [{
                data: [
    [
        "Time (hours)",
        "Alpha",
        "Beta",
        "Cumulative Prob",
        "Probability Density"
    ],
    [
        100,
        2,
        150,
        "=WEIBULL.DIST(A2,B2,C2,TRUE)",
        "=WEIBULL.DIST(A2,B2,C2,FALSE)"
    ],
    [
        200,
        1.5,
        180,
        "=WEIBULL.DIST(A3,B3,C3,TRUE)",
        "=WEIBULL.DIST(A3,B3,C3,FALSE)"
    ],
    [
        300,
        2.2,
        200,
        "=WEIBULL.DIST(A4,B4,C4,TRUE)",
        "=WEIBULL.DIST(A4,B4,C4,FALSE)"
    ],
    [
        500,
        1.8,
        250,
        "=WEIBULL.DIST(A5,B5,C5,TRUE)",
        "=WEIBULL.DIST(A5,B5,C5,FALSE)"
    ]
]
            }]
        });
    }
}

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