The FIND function allows you to find a text string within another. It returns the position at which a character or string begins within another text string. The output of the above function will be 5, ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Autocorrelation, a statistical measure that evaluates the relationship between a variable’s past and present values, can provide insights into patterns and guide investment decisions. By analyzing how ...

Abstract: Two general methods are available for the routine estimation of an autocorrelation function: the average of lagged products of the observations or a parametric solution with a time series ...

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This is the development repository for the fdaACF package. Functions within this package can be used for quantifying the serial correlation across lags of a given functional time series. The current ...

1 Department of Physics, Faculty of Science, Helwan University, Cairo, Egypt. 2 Department of Science, Open Educational College, Baghdad, Iraq. Under conditions differing from those subjected for ...