my_dfs <- list( diamonds = diamondsmap(.x = my_dfs, ~ print(.x %>% str)) # OK 但是,如果我还想访问正在打印的列表中的项目的名称,我该怎么做呢? map(.x = my_dfs, ~ print(.id)) # found a reference to .id in the docs.
Error in print(.id) : object '.id' not found 更好的是,我希望在一个调用中同时使用map,例如 map(.x =
t <- data.frame('x1' = c('how are you','whats up?', 'whats up?'), "x2" = c('how are you','how are you', 'whats up?'), "x3" = c('whats up?','how are you'
Button) findViewById(R.id.btnSubmit); final EditText et2 = (EditText) findViewById(R.id.etVC);//whats wrong
final EditText et3double a = Double.parseDouble(a1);//whats