R's binary and logical operators will look very familiar to programmers. Note that binary operators work on vectors and matrices as well as scalars.
MacFamilyTree is just a gorgeous program. To see the graphics of who a person is related to in a 3d movable image is incredible. I love using this program I just need to learn more to take full advantage. I can't change the Ease of Use to the 4 stars it should get. This method compares this String to another String, ignoring case considerations. Two strings are considered equal ignoring case, if they are of the same length, and corresponding characters in the two strings are equal ignoring case. Here is the syntax of this method − public boolean equalsIgnoreCase(String anotherString) Parameters. Of the 13 apps I reviewed in my Family Tree Software Alternatives Series, nine both imported and exported EVENTDESCRIPTOR correctly: Family Tree Maker 3 (for Mac) and 2017, RootsMagic 7, Legacy Family Tree 8, Ancestral Quest 14, Family Historian 6, Gramps 4, MacFamilyTree 8 (but not 7), Family Tree Builder 7, and GEDitCOM II.
Arithmetic Operators
| Operator | Description |
| + | addition |
| - | subtraction |
| * | multiplication |
| / | division |
| ^ or ** | exponentiation |
| x %% y | modulus (x mod y) 5%%2 is 1 |
| x %/% y | integer division 5%/%2 is 2 |
Logical Operators
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| Operator | Description |
| < | less than |
| <= | less than or equal to |
| > | greater than |
| >= | greater than or equal to |
| exactly equal to | |
| != | not equal to |
| !x | Not x |
| x y | x OR y |
| x & y | x AND y |
| isTRUE(x) | test if X is TRUE |
# An example Slots lv mobile casino.
x <- c(1:10)
x[(x>8) (x<5)]
# yields 1 2 3 4 9 10
# How it works
x <- c(1:10)
x
1 2 3 4 5 6 7 8 9 10
x > 8
F F F F F F F F T T
x < 5
T T T T F F F F F F
x > 8 x < 5
T T T T F F F F T T
x[c(T,T,T,T,F,F,F,F,T,T)]
1 2 3 4 9 10
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Going Further
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To practice working with logical operators in R, try the free first chapter on conditionals of this interactive course. Free windows sounds wav files.