zerofind function

Does the range of the input contain 0?

Returns TRUE if range of the argument includes 0 and FALSE if not.

zerofind(fmat)

Arguments

• fmat: An object from which 'range' returns two numbers.

Returns

A logical value TRUE or FALSE.

References

Ramsay, James O., Hooker, Giles, and Graves, Spencer (2009), Functional data analysis with R and Matlab, Springer, New York.

Ramsay, James O., and Silverman, Bernard W. (2005), Functional Data Analysis, 2nd ed., Springer, New York.

Ramsay, James O., and Silverman, Bernard W. (2002), Applied Functional Data Analysis, Springer, New York.

See Also

range

Examples

zerofind(1:5)
# FALSE
zerofind(0:3)
# TRUE