こんにちは、樋口です。書き込みありがとうございます。
一部の文字化けというのは少し手強そうですね。そのネットワークが表示され
た状態で「保存」をクリックして、「R Source」形式で保存してください。
そして、保存したファイルを「秀丸」「メモ帳」等のテキストエディタで開き、
「colnames(d)」を検索して下さい。以下のような形の、語のリストがあるは
ずです。
colnames(d) <- c("先生","奥さん","自分","お嬢さん","言葉","手紙","叔父","人間","様子","心持","態度","話","意味","病気","卒業","返事","急","東京","問題","前","今","K","思う","見る","聞く","出る","帰る","来る","考える","知る","行く","立つ","答える","死ぬ","見える","知れる","書く","解る","出す","話す","取る","坐る","付く","笑う","歩く","読む","好い","悪い","少し","父","人","母","顔","眼","心","妻","口","女","頭","手","事","宅","家","室","男","気","兄","声","外")
まずは、ここで既に文字化けしているのか、それとも、この時点では大丈夫な
のか。また、どの語が「落Z」に文字化けしているのかといったことを調べて
みていただけますでしょうか。こうしたことが分かると、解決に向けての手が
かりとして役立つかも知れません。