The electrocardiographic waveforms of a plurality of candidate sections (analysis unit sections) are extracted from the collected electrocardiogram waveforms, and the extracted electrocardiographic waveforms of the plurality of candidate sections (analysis unit sections) are displayed on one screen. This allows the user to view the analysis result of which candidate section (analysis unit section) while simultaneously watching the electrocardiogram waveforms of a plurality of candidate sections (analysis unit section) without switching the screen many times, and Which candidate section should be recorded can be determined, and as a result, an appropriate electrocardiogram analysis can be performed with an easy operation.収集された心電波形から複数の候補区間（解析単位区間）の心電波形が抽出され、抽出された複数の候補区間（解析単位区間）の心電波形が１画面中に表示される。これにより、ユーザは、画面を何度も切り替えることなしに、複数の候補区間（解析単位区間）の心電波形を同時に見ながらどの候補区間（解析単位区間）の解析結果を見るか、及び、どの候補区間を収録すべきか等を判断でき、この結果、容易な操作で適切な心電図解析を行うことができるようになる。
