### CiCC

There are currently 17 CiCC in this directory beginning with the letter X.

X

**x**

In mathematics or statistics, often used as a variable or placeholder to represent an independent variable or unknown value.

**X calculated PLS**

The calculated values or components obtained from Partial Least Squares (PLS) regression analysis for the X variables.

**X loading PLS**

The loading values of the X variables in Partial Least Squares (PLS) regression, indicating the influence of predictors on the model.

**X or Input**

X typically represents input variables or factors in statistical models or equations, influencing the outcome or dependent variable Y.

**X residuals PLS**

Residual values obtained from Partial Least Squares (PLS) regression analysis for the X variables, indicating the model's error.

**X scores PLS**

The scores or values derived from Partial Least Squares (PLS) regression analysis for the X variables, representing their contribution to the model.

**X variance**

The variance or spread of values within the X variables or factors in a dataset, indicating their dispersion from the mean.

**X weights**

Weight values assigned to the X variables in a statistical model or analysis, indicating their importance or contribution.

**X Y and Z variables**

Refers to the three variables X, Y, and Z, commonly used in statistical modeling, representing different sets of data or factors.

**X-Bar (x)**

The sample mean or average value of a set of data points X, used in statistical analysis to represent central tendency.

**X-Bar & R Charts**

Control charts used in statistical process control (SPC) to monitor and control process variation using sample means (X-Bar) and ranges (R).

**X-Bar & S (standard deviation)**

Control charts used in statistical process control (SPC) to monitor process variation using sample means (X-Bar) and standard deviations (S).

**Xbar chart**

A control chart representing the sample means (Xbar) of a process, used to detect and analyze variations in a manufacturing or production process.

**Xbar R chart**

A control chart displaying sample means (Xbar) and ranges (R) of a process, used to monitor variation in process performance.

**Xbar S chart**

A control chart illustrating sample means (Xbar) and standard deviations (S) to monitor process variation and stability.

**XYZ analysis**

Procedure in materials management for forecasting consumption. It is used for requirements planning, storage planning and costing. Goods or articles are classified with regard to the regularity of their sales. Products that are regularly sold in constant numbers of items are called X articles. Y articles are products that are subject to stronger fluctuations in consumption (for example, seasonal goods). Z articles are products whose sales run very irregularly or even stochastically.