| | TWiki Spreadsheet Plugin
This Plugin adds speadsheet capabilities to TWiki topics. Formulas like %CALC{"$INT(7/3)"}% are evaluated at page view time. They can be placed in table cells and outside of tables. | | |
- The formula in the
%CALC{"formula"}% variable can contain built-in functions
- Built-in function are of format
$FUNCNAME(parameter)%
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- Built-in functions may be nested, e.g.
%CALC{"$SUM( R2:C$COLUMN(0)..R$ROW(-1):C$COLUMN(0) )"}%
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- Functions may be nested, e.g.
%CALC{"$SUM( R2:C$COLUMN(0)..R$ROW(-1):C$COLUMN(0) )"}%
- Functions are evaluated from left to right, and from inside to outside if nested
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- The function parameter can be text; a mathematical formula; a cell address; or a range of cell addresses
- Multiple parameters form a list; they are separated by a comma, followed by optional space, e.g.
%CALC{"$SUM( 3, 5, 7 )"}%
- A table cell can be addressed as
R1:C1. Table address matrix:
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"$AVERAGE(list)" | The average of the content of a range of cells. Example: To get the average of column 5 excluding the title row, write in the last row: %CALC{"$AVERAGE( R2:C5..R$ROW(-1):C5 )"}% |
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"$AND(list)" | The logcial AND of a list. Example: %CALC{"$AND(1, 0, 1)"}% returns 0 |
"$AVERAGE(list)" | The average of a list or a range of cells. Example: To get the average of column 5 excluding the title row, write in the last row: %CALC{"$AVERAGE( R2:C5..R$ROW(-1):C5 )"}% |
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"$CHAR(number)" | The ASCII character represented by number. Example: %CALC{"$CHAR(97)"}% returns a |
"$CODE(text)" | The ASCII numeric value of the first character in text. Example: %CALC{"$CODE(abc)"}% returns 97 |
"$COLUMN(offset)" | The current column number with an optional offset |
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"$FORMATTIME( serial, text )" | Convert a serialized date into a date string; the following variables in text are expanded: $second (seconds, 00..59); $minute (minutes, 00..59); $hour (hours, 00..23); $day (day of month, 01..31); $month (month, 01..12); $mon (month in text format, Jan..Dec); $year (4 digit year, 1999); $ye (2 digit year, 99), $wd (day number of the week, 1 for Sunday, 2 for Monday, etc), $wday (day of the week, Sun..Sat), $weekday (day of the week, Sunday..Saturday), $yearday (day of the year, 1..365, or 1..366 in leap years). Date is assumed to be server time; add GMT to indicate Greenwich time zone. See also $TIME(), $TODAY(), $FORMATGMTIME(), $TIMEDIFF(). Example: %CALC{"$FORMATTIME( 0, $year/$month/$day GMT )"}% returns 1970/01/01 GMT |
"$FORMATGMTIME( serial, text )" | Convert a serialized date into a date string in Greenwich time zone. Same variables expansion as in $FORMATTIME(). Example: %CALC{"$FORMATGMTIME( 1041379200, $day $mon $year )"}% returns 01 Jan 2003 |
"$GET(name)" | Get the value of a previously set variable. Specify the variable name (alphanumeric characters and underscores). An empty string is returned if the variable does not exist. Use $SET() to set a variable first. Unlike table ranges, variables live for the time of the page view and persist across tables, i.e. you can use it to summarize results across several tables. See also $SET(). Example: %CALC{"$GET( my_total )"}% returns the value of the my_total variable |
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"$IF(condition, value if true, value if 0)" | Returns one value if a condition is met, and another value if not. The condition can be a number (where 0 means condition not met), or two numbers with a comparison operator < (less than), <= (less than or equal), == (equal), != (not equal), >= (greater than or equal), > (greater than). Example: %CALC{"$IF( $T(R1:C5) > 1000, Over Budget, OK )"}% returns Over Budget if value in R1:C5 is over 1000, OK if not |
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"$IF(condition, value if true, value if 0)" | Returns one value if a condition is met, and another value if not. The condition can be a number (where 0 means condition not met), or two numbers with a comparison operator < (less than), <= (less than or equal), == (equal), != (not equal), >= (greater than or equal), > (greater than). Examples:
%CALC{"$IF( $T(R1:C5) > 1000, Over Budget, OK )"}% returns Over Budget if value in R1:C5 is over 1000, OK if not
%CALC{"$IF( $EXACT($T(R1:C2),), empty, $T(R1:C2) )"}% returns the content of R1:C2 or empty if empty
%CALC{"$SET(val, $IF( $T(R1:C2) == 0, zero, $T(R1:C2) ))"}% sets a variable conditionally (notice that you cannot set a variable conditionally inside an $IF() since formulae in the "value if true" and "value if 0" are both evaluated before the condition is applied) |
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"$INT(formula)" | Evaluates a simple formula and rounds the result down to the nearest integer. Example: %CALC{"$INT( 10 / 4 )"}% returns 2 |
"$LEFT()" | The address range of cells to the left of the current cell |
"$LENGTH(text)" | The length in bytes of text. Example: %CALC{"$LENGTH(abcd)"}% returns 4 |
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"$MAX(list)" | The biggest value of a list or range of cells. Example: To find the biggest number to the left of the current cell, write: %CALC{"$MAX( $LEFT() )"}% |
"$MEDIAN(list)" | The median of a list or range of cells. Example: %CALC{"$MEDIAN( 3, 9, 4, 5 )"}% returns 4.5 |
"$MIN(list)" | The smallest value of a list or range of cells. Example: %CALC{"$MIN( 15, 3, 28 )"}% returns 3 |
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"$MULT(list)" | The product of a list or range of cells. Example: to calculate the product of the cells to the left of the current one use %CALC{"$MULT($LEFT())"}% |
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"$MOD(num, divisor)" | The reminder after dividing num by divisor. Example: %CALC{"$MOD(7, 3)"}% returns 1 |
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"$NOP(text)" | A no-operation. Allows one to defy the order of Plugin execution. For example, it will allow preprossing to be done before %SEARCH{}% is evaluated. Use $per to escape '%'. |
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"$NOT(num)" | The reverse logic of a number. Returns 0 if num is not zero, 1 if zero. Example: %CALC{"$NOT(0)"}% returns 1 |
"$OR(list)" | The logcial OR of a list. Example: %CALC{"$OR(1, 0, 1)"}% returns 1 |
"$PRODUCT(list)" | The product of a list or range of cells. Example: to calculate the product of the cells to the left of the current one use %CALC{"$PRODUCT($LEFT())"}% |
"$PROPER(text)" | Capitalizes letters in text that follow any character other than a letter. Converts all other letters to lowercase letters. Examples:
%CALC{"PROPER(a small STEP)"}% returns A Small Step
%CALC{"PROPER(f1 (formula-1))"}% returns F1 (Formula 1) |
"$PROPERSPACE(text)" | Properly spaces out WikiWords preceeded by white space, parenthesis, or ][. Words listed in the DONTSPACE TWikiPreferences variable or DONTSPACE Plugins setting are excluded. Example, assuming DONTSPACE contains McIntosh: %CALC{"PROPERSPACE(McIntosh likes WikiWord links like WebHome and [[WebHome][WebHome]])"}% returns McIntosh likes Wiki Word links like Web Home and Web Home |
"$RAND(max)" | Random number, evenly distributed between 0 and max, or 0 and 1 if max is not specified. |
"$REPEAT(text)" | Repeat text a number of times. Example: %CALC{"$REPEAT(Hi! , 3)"}% returns Hi! Hi! Hi! |
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"$REPLACE(text, start_num, num_chars, new_text)" | Replaces part of text string text, based on the starting position start_num, and the number of characters to replace num_chars. The characters are replaced with new_text. Starting position is 1; use a negative start_num to count from the end of the text. See also $SUBSTITUTE(), $TRANSLATE(). Example:
%CALC{"$REPLACE(abcdefghijk,6,5,*)"}% returns abcde*k |
"$RIGHT()" | The address range of cells to the right of the current cell |
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"$ROUND(formula)" | Evaluates a simple formula and rounds the result up or down to the nearest integer. Example: %CALC{"$INT( 10 / 6 )"}% returns 2 |
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"$ROUND(formula, digits)" | Evaluates a simple formula and rounds the result up or down to the number of digits if digits is positive; to the nearest integer if digits is missing; or to the left of the decimal point if digits is negative. Examples:
%CALC{"$ROUND(3.15, 1)"}% returns 3.2
%CALC{"$ROUND(3.149, 1)"}% returns 3.1
%CALC{"$ROUND(-2.475, 2)"}% returns -2.48
%CALC{"$ROUND(34.9, -1)"}% returns 30 |
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"$ROW(offset)" | The current row number with an offset. Example: To get the number of rows excluding table heading ( first row) and summary row (last row you are in), write: %CALC{"$ROW(-2)"}% |
"$SEARCH(search_string, text, start_index)" | Finds one text string search_string, within another text string text, and returns the number of the starting position of search_string, from the first character of text. This search a RegularExpression search; use $FIND() for non-regular expression searching. Starting position is 1; an empty string is returned if nothing is matched. Examples:
%CALC{"$SEARCH([uy], fluffy)"}% returns 3
%CALC{"$SEARCH([uy], fluffy, 3)"}% returns 6
%CALC{"$SEARCH([abc], fluffy,)"}% returns an empty string |
"$SET(name, value)" | Set a variable for later use. Specify the variable name (alphanumeric characters and underscores) and the value. The value may contain a formula; formulas are evaluated before the variable assignment. This function returns no output. Use $GET() to retrieve variables. Unlike table ranges, variables live for the time of the page view and persist across tables, i.e. you can use it to summarize results across several tables. See also $GET(). Example: %CALC{"$SET( my_total, $SUM($ABOVE()) )"}% sets the my_total variable to the sum of all table cells located above the current cell and returns an empty string |
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"$SIGN(num)" | The sign of a number. Returns -1 if num is negative, 0 if zero, or 1 if positive. Example: %CALC{"$SIGN(-12.5)"}% returns -1 |
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"$SUBSTITUTE(text, old, new, instance, option)" | Substitutes new text for old text in a text string. instance specifies which occurance of old you want to replace. If you specify instance, only that instance is replaced. Otherwise, every occurance is changed to the new text. A literal search is performed by default; a RegularExpression search if the option is set to r. See also $REPLACE(), $TRANSLATE(). Examples:
%CALC{"$SUBSTITUTE(Good morning, morning, day)"}% returns Good day
%CALC{"$SUBSTITUTE(Q2-2002,2,3)"}% returns Q3-3003
%CALC{"$SUBSTITUTE(Q2-2002,2,3,3)"}% returns Q2-2003
%CALC{"$SUBSTITUTE(abc123def,[0-9],9,,r)"}% returns abc999def |
"$SUM(list)" | The sum of a list or range of cells. Example: To sum up column 5 excluding the title row, write: %CALC{"$SUM( R2:C5..R$ROW(-1):C5 )"}% in the last row; or simply %CALC{"$SUM( $ABOVE() )"}% |
"$SUMDAYS(list)" | The total number of days in a list or range of cells containing numbers of hours, days or weeks. The default unit is days; units are indicated by a h, hours, d, days, w, weeks suffix. One week is assumed to have 5 working days, one day 8 hours. Example: %CALC{"$SUMDAYS( 2w, 1, 2d, 4h )"}% returns 13.5, the evaluation of (2*5 + 1 + 2 + 4/8) |
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"$TODAY()" | Get the serialized date of today at midnight GMT. The related $TIME() returns the serialized date of today at the current time, e.g. it includes the number of seconds since midnight GMT. See also $FORMATTIME(), $FORMATGMTIME(), $TIMEDIFF(). Example: %CALC{"$TODAY()"}% returns the number of seconds since Epoch |
"$TRIM(text)" | Removes all spaces from text except for single spaces between words. Example: %CALC{"$TRIM( eat spaces )"}% returns eat spaces. |
"$UPPER(text)" | The upper case string of a text. Example: %CALC{"$UPPER( $T(R1:C5) )"}% returns the upper case string of the text in cell R1:C5 |
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"$VALUE(text)" | Extracts a number from text. Returns 0 if not found. Examples:
%CALC{"$VALUE(US$1,200)"}% returns 1200
%CALC{"$VALUE(PrjNotebook1234)"}% returns 1234
%CALC{"$VALUE(Total: -12.5)"}% returns 12.5 |
| | | Bug Tracking Example | | | Above table is created manually. Another Plugin could build the table dynamically, e.g. by pulling data out of a bug tracking system. The Spreadsheet Plugin can be used to display table data statistics. | |
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< | SpreadSheetPlugin Settings | >
> | Plugin Settings | | | Plugin settings are stored as preferences variables. To reference
a plugin setting write %<plugin>_<setting>%, i.e. %SPREADSHEETPLUGIN_SHORTDESCRIPTION% | | |
- Do not handle
%CALC{}% tag in included topic while including topic: (default: 1)
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- WikiWords to exclude from being spaced out by the
$PROPERSPACE(text) function. This comma delimited list can be overloaded by a DONTSPACE preferences variable:
- Set DONTSPACE = CodeWarrior, McIntosh, RedHat, SuSE
| | | Plugin Installation Instructions | | | Plugin Info
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| Plugin Version: | 27 Feb 2004 |
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| Plugin Version: | 06 Mar 2004 |
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| Change History: | <-- specify latest version first --> |
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| 06 Mar 2004: | Added $AND(), $MOD(), $NOT(), $OR(), $PRODUCT(), $PROPER(), $PROPERSPACE(), $RAND(), $REPEAT(), $SIGN(), $VALUE(); added digits parameter to $ROUND(); renamed $MULT() to $PRODUCT(); $MULT() is deprecated and undocumented |
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| 27 Feb 2004: | Added $COUNTUNIQUE() |
| 24 Oct 2003: | Added $SET(), $GET(), $MEDIAN(); added $SUMPRODUCT(), inspired by TWiki:Main/RobertWithrow; added $SUMDAYS(), contributed by TWiki:Main/SvenDowideit |
| 21 Oct 2003: | Added support for lists (1, 2, 3) and lists of table ranges (R1:C1..R1:C5, R3:C1..R3:C5) for all functions that accept a table range; added $TIMEADD(); in $TIMEDIFF() added week unit; in $FORMATTIME() changed $weekday to $wd and added $wday and $weekday |
| | | Related Topics: TWikiPreferences, TWikiPlugins | |
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< | -- TWiki:Main/PeterThoeny - 27 Feb 2004 | >
> | -- TWiki:Main/PeterThoeny - 06 Mar 2004 |
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