![]() ![]() On how methods can be tuned to deal with missing values. Note: The name property doesnt exist for other elements unlike tagName and nodeName, it is not a property of the Node, Element or HTMLElement interfaces. It calls any(is.na(x)) on objects withĬlasses and for recursive = FALSE, on lists and pairlists. The default method for anyNA handles atomic vectors without aĬlass and NULL. If the expression does not depend on the NA operand. TRUE/FALSE value, and so may return TRUE or FALSE Logical computations treat NA as a missing Involved, in which case either might result (which may depend on NA: a possible exception is where NaN is also Numerical computations using NA will normally result in It behaves differently for factors, for example. Methods to handle specific classes of objects, seeįunction is.na<- may provide a safer way to set missingness. Is.na and anyNA are generic: you can write String should use NA_character_ (rather than "NA") or set Programmers who need to specify an explicit missing The NA of character type is distinct from the string (no longer warning since R version 3.5.0). ![]() This electron configuration shows that sodium ion (Na +) has acquired the electron configuration of neon (Ne) and it achieves an octave full stable electron configuration. With the same dimensions as the data frame, and with dimnames takenįrom the row and column names of the data frame.ĪnyNA(NULL) is false is.na(NULL) is logical(0) The electron configuration of sodium ion (Na +) is 1s 2 2s 2 2p 6. The data frame method for is.na returns a logical matrix The sodium chemical symbol derived from its latin name Natrium. Sodium is a chemical element with the symbol Na N a and the atomic number. This is colored visually white, which is a low density light metal. Method for the class of the element is ignored).ĪnyNA(recursive = FALSE) works the same way as is.na ĪnyNA(recursive = TRUE) applies anyNA (with method Sodium is an element with a symbol Na N a and is a member of the alkali metal group. Regarded as NA or NaN (note that any is.na Is a length-one atomic vector and the single element of that vector is The default methods also work for lists and pairlists:įor is.na, elementwise the result is false unless that element (A complex value is regarded as NA if either itsĭim, dimnames and names attributes are copied to Numeric or complex vectors, NaN, and FALSE Returns a logical vector of the same length as its argument x,Ĭontaining TRUE for those elements marked NA or, for ![]() The default method for is.na applied to an atomic vector is a required part of the distinguishing legal title of a national bank, as in Farmers National Bank. What does NA after a name mean Inclusion in the bank’s name of the word National, the designation National Association, or its abbreviation N.A. A few elements have symbols derived from their Latin names as given in the table below.A suitable index vector for use with x. What is the full name of NA Sodium is a chemical element with symbol Na and atomic number 11. Many elements have their symbol derived from either the first letter or the first two letters of their names. An atom of an element is denoted by this symbol. Each element has a chemical symbol that is unique to it. The symbol is the short form or abbreviated name of the element. Scientists have adopted certain conventions regarding the chemical symbols for various elements. What are the Latin Names of Chemical Elements? Come back next month, when well be taking a close look at Germanium. Chemistry : Elements and Chemical Symbols - Latin Names And that, folks, is sodium, one of the most used and essential elements on Earth. ![]()
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