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SOLUTION:如何申請grepl數據幀
發佈者@docendodiscimus:「嘗試的sapply環比模式:
sapply(df_triggers$trigger, grepl, df_sen$sentence)"
最初的問題:
我想用grepl用於定義爲數據幀的多個模式 df_sen表示爲
sentence
"She would like to go there"
"I had it few days ago"
"We have spent few millions"
個df_triggers現分述如下:
trigger
few days
few millions
我想創建一個矩陣,其中一句X觸發器和在路口看到1,如果觸發是在一個句子中發現和0,如果事實並非如此。
我試圖做這樣的:
df_sen = read.csv("df.csv", sep = ";",header = TRUE)
df_triggers = read.csv("df.csv", sep = ";",header = TRUE)
dat <- data.frame(v=df_sen$sentence)
matrix <- grepl(df_triggers$trigger, dat$v)
write.csv(matrix,file = "matrix.csv")
但我看到,我在grepl超過1種模式()的錯誤信息。
所需的輸出是:
few days few millions
"She would like to go there" 0 0
"I had it few days ago" 1 0
"We have spent few millions 0 1
你能幫我達成這樣的結果嗎?
而事情是,我有2500個句子。所以我不能像'幾天|幾百萬' – ZverArt
嘗試一個模式的sapply循環:'sapply(df_triggers $ trigger,grepl,df_sen $句子)' –
@docendodiscimus謝謝!它運作良好! – ZverArt