findFreqTerms: Find Frequent Terms
In tm: Text Mining Package
Description
Usage
Arguments
Details
Value
Examples
Description
Find frequent terms in a document-term or term-document matrix.
Usage
1
findFreqTerms(x, lowfreq = 0, highfreq = Inf)
Arguments
x
A DocumentTermMatrix or
TermDocumentMatrix.
lowfreq
A numeric for the lower frequency bound.
highfreq
A numeric for the upper frequency bound.
Details
This method works for all numeric weightings but is probably
most meaningful for the standard term frequency (tf) weighting
of x.
Value
A character vector of terms in x which occur more or equal often
than lowfreq times and less or equal often than highfreq
times.
Examples
1
2
3
data("crude")
tdm <- TermDocumentMatrix(crude)
findFreqTerms(tdm, 2, 3)
Example output
Loading required package: NLP
[1] "\"is" "\"none" "\"opec" "\"the"
[5] "\"we" "(bpd)" "(opec)" "..."
[9] "1.2" "13-nation" "15-18" "1985."
[13] "1985/86" "1986," "1986/87" "1987"
[17] "1987/88" "20s," "285,000" "500"
[21] "7.25" "750" "948,000" "added."
[25] "address" "adhering" "against" "agreed"
[29] "al-khalifa" "al-qabas" "al-sabah" "all"
[33] "along" "announced" "any" "apparently"
[37] "appeared" "appears" "approved" "arabia's"
[41] "arabian" "architect" "areas" "around"
[45] "aspen" "average" "back" "bank"
[49] "bankers" "barrels," "based" "bbl."
[53] "benchmark" "benefits" "boost" "both"
[57] "bpd." "called" "canada" "canadian"
[61] "cash" "change" "changed" "changes"
[65] "circumstance.\"" "clearly" "closed" "coast"
[69] "come" "commitment" "commodity" "companies"
[73] "compared" "consumption." "countries" "country"
[77] "country's" "crossroads" "crucial" "cubic"
[81] "current" "day" "deal" "december's"
[85] "december." "decline" "decrease" "deficit"
[89] "denied" "deposits" "deputy" "diamond"
[93] "did" "difficulties" "discounted" "dlr"
[97] "dlrs." "dollars" "domestic" "down"
[101] "due" "each" "early" "ecuador,"
[105] "efp" "embargo" "embassy" "emirates"
[109] "emirates," "entering" "estimate" "estimates"
[113] "even" "export" "falling" "feb"
[117] "february" "first" "fiscal" "fiscales"
[121] "fixed" "forced" "foreign" "four"
[125] "fully" "future" "general" "given"
[129] "grade," "grades" "group," "guard"
[133] "halt" "high" "hisham" "hit"
[137] "hope" "however," "humanistic" "impact"
[141] "import" "imports" "imports." "inc."
[145] "increased" "increasing" "indonesia\"s" "indonesia,"
[149] "industry." "instead" "institute" "intermediate"
[153] "into" "january," "keep" "kingdom's"
[157] "kuwait's" "late" "levels" "light"
[161] "limit" "line" "local" "lost"
[165] "louisiana" "low" "lower" "lowered"
[169] "lowest" "made" "main" "major"
[173] "march" "market." "markets." "mckiernan"
[177] "measures" "meeting.\"" "mid" "minister,"
[181] "ministers" "mitigate" "mizrahi" "mln,"
[185] "month," "months" "moves" "much"
[189] "named" "nearing" "net" "neutral"
[193] "next" "nuclear" "officials" "oil,"
[197] "oil." "one," "opec\"s" "opec's"
[201] "organisation." "organization" "other" "our"
[205] "out" "overseas" "pact" "pay"
[209] "pct." "petroliferos" "planned" "plant"
[213] "port" "position" "positive" "postings"
[217] "predicted" "president" "press" "pressure"
[221] "pricing" "private" "probably" "producer"
[225] "projected" "pronounced" "public" "published"
[229] "put" "quota." "quotes" "raise"
[233] "rate" "real" "reduction" "referring"
[237] "refinery" "reiterated" "remain" "remarks"
[241] "return" "revenue" "revenues" "review"
[245] "rise" "rise." "risks" "riyal"
[249] "riyals" "riyals." "rule" "said,"
[253] "said:" "say" "saying" "says."
[257] "sector" "self-imposed" "selling" "several"
[261] "sharp" "ship" "shortfall" "should"
[265] "six" "slightly" "smaller" "spa"
[269] "spokeswoman." "spot" "state" "steady"
[273] "stick" "strongly" "studies," "support"
[277] "sweet" "take" "taken" "techniques."
[281] "texaco" "them" "then" "those"
[285] "three" "throughput" "today," "today."
[289] "trading" "transaction" "trust" "trying"
[293] "two" "uncertainty" "union" "until"
[297] "value" "wam" "wanted" "weakness"
[301] "weeks" "what" "while" "who"
[305] "winter" "yacimientos" "yanbu" "year's"
[309] "years" "yesterday" "yesterday." "york"
[313] "zone"
tm documentation built on April 7, 2021, 3:01 a.m.
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Description Usage Arguments Details Value Examples
Description
Find frequent terms in a document-term or term-document matrix.
Usage
1 | findFreqTerms(x, lowfreq = 0, highfreq = Inf)
|
Arguments
x |
A |
lowfreq |
A numeric for the lower frequency bound. |
highfreq |
A numeric for the upper frequency bound. |
Details
This method works for all numeric weightings but is probably
most meaningful for the standard term frequency (tf) weighting
of x.
Value
A character vector of terms in x which occur more or equal often
than lowfreq times and less or equal often than highfreq
times.
Examples
1 2 3 | data("crude")
tdm <- TermDocumentMatrix(crude)
findFreqTerms(tdm, 2, 3)
|
Example output
Loading required package: NLP
[1] "\"is" "\"none" "\"opec" "\"the"
[5] "\"we" "(bpd)" "(opec)" "..."
[9] "1.2" "13-nation" "15-18" "1985."
[13] "1985/86" "1986," "1986/87" "1987"
[17] "1987/88" "20s," "285,000" "500"
[21] "7.25" "750" "948,000" "added."
[25] "address" "adhering" "against" "agreed"
[29] "al-khalifa" "al-qabas" "al-sabah" "all"
[33] "along" "announced" "any" "apparently"
[37] "appeared" "appears" "approved" "arabia's"
[41] "arabian" "architect" "areas" "around"
[45] "aspen" "average" "back" "bank"
[49] "bankers" "barrels," "based" "bbl."
[53] "benchmark" "benefits" "boost" "both"
[57] "bpd." "called" "canada" "canadian"
[61] "cash" "change" "changed" "changes"
[65] "circumstance.\"" "clearly" "closed" "coast"
[69] "come" "commitment" "commodity" "companies"
[73] "compared" "consumption." "countries" "country"
[77] "country's" "crossroads" "crucial" "cubic"
[81] "current" "day" "deal" "december's"
[85] "december." "decline" "decrease" "deficit"
[89] "denied" "deposits" "deputy" "diamond"
[93] "did" "difficulties" "discounted" "dlr"
[97] "dlrs." "dollars" "domestic" "down"
[101] "due" "each" "early" "ecuador,"
[105] "efp" "embargo" "embassy" "emirates"
[109] "emirates," "entering" "estimate" "estimates"
[113] "even" "export" "falling" "feb"
[117] "february" "first" "fiscal" "fiscales"
[121] "fixed" "forced" "foreign" "four"
[125] "fully" "future" "general" "given"
[129] "grade," "grades" "group," "guard"
[133] "halt" "high" "hisham" "hit"
[137] "hope" "however," "humanistic" "impact"
[141] "import" "imports" "imports." "inc."
[145] "increased" "increasing" "indonesia\"s" "indonesia,"
[149] "industry." "instead" "institute" "intermediate"
[153] "into" "january," "keep" "kingdom's"
[157] "kuwait's" "late" "levels" "light"
[161] "limit" "line" "local" "lost"
[165] "louisiana" "low" "lower" "lowered"
[169] "lowest" "made" "main" "major"
[173] "march" "market." "markets." "mckiernan"
[177] "measures" "meeting.\"" "mid" "minister,"
[181] "ministers" "mitigate" "mizrahi" "mln,"
[185] "month," "months" "moves" "much"
[189] "named" "nearing" "net" "neutral"
[193] "next" "nuclear" "officials" "oil,"
[197] "oil." "one," "opec\"s" "opec's"
[201] "organisation." "organization" "other" "our"
[205] "out" "overseas" "pact" "pay"
[209] "pct." "petroliferos" "planned" "plant"
[213] "port" "position" "positive" "postings"
[217] "predicted" "president" "press" "pressure"
[221] "pricing" "private" "probably" "producer"
[225] "projected" "pronounced" "public" "published"
[229] "put" "quota." "quotes" "raise"
[233] "rate" "real" "reduction" "referring"
[237] "refinery" "reiterated" "remain" "remarks"
[241] "return" "revenue" "revenues" "review"
[245] "rise" "rise." "risks" "riyal"
[249] "riyals" "riyals." "rule" "said,"
[253] "said:" "say" "saying" "says."
[257] "sector" "self-imposed" "selling" "several"
[261] "sharp" "ship" "shortfall" "should"
[265] "six" "slightly" "smaller" "spa"
[269] "spokeswoman." "spot" "state" "steady"
[273] "stick" "strongly" "studies," "support"
[277] "sweet" "take" "taken" "techniques."
[281] "texaco" "them" "then" "those"
[285] "three" "throughput" "today," "today."
[289] "trading" "transaction" "trust" "trying"
[293] "two" "uncertainty" "union" "until"
[297] "value" "wam" "wanted" "weakness"
[301] "weeks" "what" "while" "who"
[305] "winter" "yacimientos" "yanbu" "year's"
[309] "years" "yesterday" "yesterday." "york"
[313] "zone"
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