皮肤弹性指标与年龄的相关性分析数据

通过对脸颊部位弹性数据的采集，计算弹性指标与年龄的相关性，为改善皮肤弹性的化妆产品和其它美容手段在功效指标筛选上提供事实相关数据。可持续对更多样本量和不同部位的测试，修正两者相关性的系数，为改善皮肤弹产品的功效检测指标提供指导依据。皮肤弹性指标与年龄的相关性分析的算法规则包括以下几个方面：1、数据采集：采用皮肤弹性测试仪MPA580分别获取不同年龄段人群的左、右脸颊弹性R2值。2、算法加工：采用皮尔逊相关系数公式，皮尔逊相关系数=∑(Xi-Ẋ）（Yi-Ẏ）/[∑(Xi-Ẋ）^2∑（Yi-Ẏ）^2)^(1/2)]。其中，Xi是每位受试者的实际年龄，Ẋ是所有受试者的平均年龄，Yi分别是不同部位每位受试者弹性指标数据的平均值（左脸颊对应Yi1，右脸颊对应Yi2），Ẏ分别是不同部位所有受试者弹性指标数据的平均值（左脸颊对应Ẏ1，右脸颊对应Ẏ2）。皮尔逊相关系数的取值范围为[-1,1]，小于0为负相关，大于0为正相关，等于0不相关。皮尔逊相关系数的绝对值越大，表示两变量间的相关程度越密切，绝对值在0.7以上说明两者变量高度相关，0.4-0.7之间说明两者变量中度相关，0.2-0.4说明两者变量一般相关。

By collecting elasticity data from cheek regions and calculating the correlation between skin elasticity indices and age, this dataset provides empirically relevant data for the efficacy indicator screening of cosmetic products and other beauty interventions aimed at improving skin elasticity. Further tests with larger sample sizes and across different body parts can be conducted to revise the correlation coefficient between the two variables, providing guiding references for the efficacy detection indicators of skin elasticity-improving products.

The algorithmic framework for correlation analysis between skin elasticity indices and age includes the following aspects:
1. Data Collection: The skin elasticity tester MPA580 is used to obtain the R2 elasticity values of the left and right cheeks for individuals across different age groups, respectively.
2. Algorithmic Processing: The Pearson correlation coefficient formula is employed, defined as: Pearson Correlation Coefficient = Σ[(Xi - X̄)(Yi - Ȳ)] / sqrt[Σ(Xi - X̄)² * Σ(Yi - Ȳ)²]. Where Xi denotes the actual age of each participant, X̄ is the average age of all participants; Yi represents the average elasticity index data of each participant at a specific body part (Yi1 for the left cheek, Yi2 for the right cheek), while Ȳ is the average elasticity index data of all participants at that body part (Ȳ1 for the left cheek, Ȳ2 for the right cheek).

The Pearson correlation coefficient ranges from -1 to 1. A value less than 0 indicates a negative correlation, a value greater than 0 indicates a positive correlation, and a value equal to 0 indicates no correlation between the two variables. The larger the absolute value of the Pearson correlation coefficient, the stronger the correlation between the two variables. Specifically, an absolute value above 0.7 indicates a high correlation between the two variables, a value between 0.4 and 0.7 indicates a moderate correlation, and a value between 0.2 and 0.4 indicates a general correlation between the two variables.

搜集汇总

数据集介绍

特点

该数据集包含103条皮肤弹性指标与年龄的相关性分析数据，通过皮尔逊相关系数分析年龄与脸颊弹性R2值的关系，为美容产品研发提供数据支持。