为什么str_替换R中的字符串？

我确实有一个数据框，需要在其中编辑疾病名称。每种疾病都有几行与其相关。出于某种原因，当我使用str\u replace\u all时，在两种情况下都不会发生置换

（“周围神经病变（不包括颅神经和腕管综合征）”，“静脉血栓栓塞性疾病（不包括PE）”

。输出中没有警告或错误消息，因此我无法找出问题所在。有人有什么想法吗

codelists <- data.frame(Disease = sample(c("Peripheral neuropathies (excluding cranial nerve and carpal tunnel syndromes)", "Primary Malignancy_Brain, Other CNS and Intracranial", "Venous thromboembolic disease (Excl PE)"), 15, replace = T), Codes = 1:15)

## Sort the dataframe according to Disease
codelists <- codelists[order(codelists$Disease), ]

library(stringr)
codelists$Disease2 <- str_replace_all(codelists$Disease, c("Peripheral neuropathies (excluding cranial nerve and carpal tunnel syndromes)" = "Non-diabetic peripheral neuropathies (excluding cranial nerves and carpal tunnel syndrome)", "Primary Malignancy_Brain, Other CNS and Intracranial" = "Primary malignancy brain, other CNS and intracranial", "Venous thromboembolic disease (Excl PE)" = "Venous thromboembolism"))

---

code列表在
regex
chaarcters类
*
，
（
有特殊含义。
str\u replace\u all
默认使用regex替换。由于您希望匹配
（不包括颅神经和腕管综合征）
等词，请准确使用
固定的

library(stringr)

codelists$Disease2 <- str_replace_all(codelists$Disease, fixed(c("Peripheral neuropathies (excluding cranial nerve and carpal tunnel syndromes)" = "Non-diabetic peripheral neuropathies (excluding cranial nerves and carpal tunnel syndrome)", "Primary Malignancy_Brain, Other CNS and Intracranial" = "Primary malignancy brain, other CNS and intracranial", "Venous thromboembolic disease (Excl PE)" = "Venous thromboembolism")))

库（stringr）
代码列表$Disease2