Difference between revisions of "CountIf Command"
From GeoGebra Manual
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; CountIf[ <Condition>, <Variable>, <List> ] | ; CountIf[ <Condition>, <Variable>, <List> ] | ||
| − | : This allows a more flexible syntax, e.g. for Points P, Q, R | + | : This allows a more flexible syntax, e.g. for Points P, Q, R <code>CountIf[x(A) < 3, A, {P, Q, R}]</code> will count only the points whose x-coordinate is less than ''3''. The variable ''A'' is replaced in turn with ''P'' then ''Q'' then ''R'' for the check. |
:{{example|1=<div><code><nowiki>CountIf[x(A) < 3, A, {(0, 1), (4, 2), (2, 2)}]</nowiki></code> gives you the number ''2''.</div>}} | :{{example|1=<div><code><nowiki>CountIf[x(A) < 3, A, {(0, 1), (4, 2), (2, 2)}]</nowiki></code> gives you the number ''2''.</div>}} | ||
Revision as of 16:45, 15 July 2013
- CountIf[ <Condition>, <List> ]
- Counts the number of elements in the list satisfying the condition.
- Example:
CountIf[x < 3, {1, 2, 3, 4, 5}]gives you the number 2.CountIf[x < 3, A1:A10], where A1:A10 is a range of cells in the spreadsheet, counts all cells whose values are less than 3.
- Note: For list of numbers arbitrary condition may be used. For list of other objects one can use only conditions of the form
x==constantorx!=constant.
- CountIf[ <Condition>, <Variable>, <List> ]
- This allows a more flexible syntax, e.g. for Points P, Q, R
CountIf[x(A) < 3, A, {P, Q, R}]will count only the points whose x-coordinate is less than 3. The variable A is replaced in turn with P then Q then R for the check. - Example:
CountIf[x(A) < 3, A, {(0, 1), (4, 2), (2, 2)}]gives you the number 2.
