DataFitting 是一个功能强大的统计分析程序，可执行线性和非线性回归分析（即曲线拟合）。DataFitting 确定方程的参数值（您指定方程的形式）使方程最适合一组数据值。DataFitting 可以处理线性、多项式、指数函数和一般非线性函数。 DataFitting 执行真正的非线性回归分析，它不会将函数转换为线性形式。因此，它可以处理无法线性化的函数，例如： y = （a - c） = exp（- b = x） = c 快速查找描述数据的最佳公式： DataFitting 使学生、教师、工程师、研究人员和其他专业人员能够通过将大量方程放在指尖，为最复杂的数据找到理想的模型。它内置库，包括从简单线性方程到高阶多项值的线性和非线性模型。 以图形方式查看曲线拟合结果： 数据拟合后，DataFitting 会根据标准误差的统计标准自动排序和绘制拟合方程。您可以预览图形，并在多个不同配置中输出出版物质量图表。为所选拟合方程生成残差图和参数输出。报告面板内还提供数据、统计数据和数字摘要。 数据拟合具有以下功能： * 38 位精密数学仿真器，用于正确拟合高阶多项式和理性。 * 非线性拟合的坚固拟合能力，可有效应对异常值和宽动态 Y 数据范围。
版本历史记录
- 版本 1.7.55 发布于 2020-10-26
用于更大插值的动态函数 - 版本 1.7.54 发布于 2020-08-10
程序接口单元的增强功能 - 版本 1.7.53 发布于 2020-06-03
通过将 std 函数实现到计算界面中进行增强 - 版本 1.7.35 发布于 2020-05-12
程序包含实现数学协处理器的各种例程。 - 版本 1.7.35 发布于 2020-04-25
程序现在包含实现数学协处理器的各种例程。 - 版本 1.7.34 发布于 2020-02-27
用于舍入小数分数的高性能例程将合并到程序中。 - 版本 1.7.33 发布于 2019-12-21
基础算法的增强 - 版本 1.7.32 发布于 2019-11-09
精度更高，范围更大 - 版本 1.7.32 发布于 2019-08-02
用户友好的界面和更高的精度 - 版本 1.7.32 发布于 2019-06-24
结合浮点机制 - 版本 1.7.32 发布于 2019-02-27
结构修改和内部优化 - 版本 1.7.31 发布于 2018-12-09
算法的内部优化 - 版本 1.7.30 发布于 2018-10-14
改进的 38 位精度数学解算器 - 版本 1.7.28 发布于 2018-06-22
基础算法的大修 - 版本 1.7.27 发布于 2018-03-02
更高精度的改进 - 版本 1.7.21 发布于 2017-05-14
增强的性能和内部优化 {*} - 版本 1.7.3 发布于 2009-05-24
软件信息
- 软件分类： 教育 > 数学
- 发布者： Institute of Mathematics and Statistics
- 许可： 免费试用
- 价格： $15.00
- 版本： 1.7.55
- 适用平台： windows
终端用户许可协议
END-USER AGREEMENT The software is protected under International Copyright and other Intellectual Property laws. IMPORTANT - Read carefully. This is a legal agreement between you and Institute of Mathematics and Statistics (IMS) for the software product identified above, which includes computer software and documentation. By clicking on the "yes" button below, you acknowledge that you have read these terms and agree to be bound by them. If you do not agree to these terms, IMS is unwilling to grant you this license and you should click on the "no" button. LICENSE GRANT: Subject to the terms and conditions of this Agreement, IMS hereby grants to you a personal, non-exclusive, non-transferable license (a "License") to use the software product identified above (the "DataFitting Software") and the documentation on the terms set forth below. Larry Nylund (at the Institute of Mathematics and Statistics) reserves all rights to the software not expressly granted to you. 1. SCOPE OF LICENSE. This license grants you the following rights: SOFTWARE: The software is provided under a single-user license. A single individual may use the software on a single computer. A license for the software may not be shared by multiple individuals on a single computer or used concurrently on different computers. 2. RESTRICTIONS. REVERSE ENGINEERING: You may not modify, translate, reverse engineer, decompile, disassemble (except to the extent applicable laws specifically prohibit such restrictions) or create derivative works based on the software or any portion thereof. SEPARATION OF COMPONENTS: The software is licensed as a single product. You may not separate the software's component parts for use on more than one computer. TRANSFER: You may not rent, lease, lend or otherwise temporarily transfer the software, but you may transfer the software and documentation together on a permanent basis provided you retain no copies and the recipient agrees to the terms of this End-User License Agreement. PROPRIETARY NOTICES: You may not remove any proprietary notices, labels or marks on the software or documentation. 3. TITLE All title, ownership rights, and intellectual property rights in and to the software and documentation are vested in Larry Nylund at the Institute of Mathematics and Statistics. The copyright laws and international treaties protect the software and documentation. 4. TERMINATION. The license is in effect until terminated. You may terminate this license by ceasing any use of the software and documentation, and deleting or otherwise destroying the software and documentation. The license will terminate immediately and automatically if you breach any of the terms of this Agreement or otherwise fail to comply with the limitations described herein. 5. DISCLAIMER The software and documentation are provided on an "as is basis. Larry Nylund disclaims all warranties relating to the software, whether expressed or implied, including but not limited to any implied warranties of fitness for a particular purpose. Neither Larry Nylund nor anyone else who has been involved in the creation, production, or delivery of the software shall be liable for any indirect, consequential, or incidental damages arising out of the use or inability to use such software, even if Larry Nylund has been advised of the possibility of such damages or claims. The person using the software bears all risk as to the quality and performance of the software.