> abcclumped<-read_exposure_data((filename = abc,sep = ",",snp_col = "SNP",beta_col = "beta",se_col = "se",effect_allele_col = "effect_allele",other_allele_col = "other_allele",eaf_col = "eaf",clump = TRUE)) Error: unexpected ',' in "abcclumped<-read_exposure_data((filename = abc,"

这段代码有一个语法错误，需要将其修改为：

abcclumped <- read_exposure_data(filename = "ABC.csv",
                                 sep = ",",
                                 snp_col = "SNP",
                                 beta_col = "beta",
                                 se_col = "se",
                                 effect_allele_col = "effect_allele",
                                 other_allele_col = "other_allele",
                                 eaf_col = "eaf",
                                 clump = TRUE)

在函数`read_exposure_data`中，`filename`参数应该是一个字符串，而不是数据框架名字，因此需要将其修改为`"ABC.csv"`。同时，函数参数的括号也需要去掉。