| 5 | 1/1 | 返回列表 |
| 查看: 2692 | 回復: 7 | |||
| 當前只顯示滿足指定條件的回帖,點擊這里查看本話題的所有回帖 | |||
[交流]
藥動學參數(shù)的達峰時間Tmax為什么由中位數(shù)描述?
|
|||
|
藥動學參數(shù)的達峰時間Tmax為什么由中位數(shù)描述? 而其它的參數(shù)如Cmax則用均值±SD描述。 求問,謝謝大家 |
» 搶金幣啦!回帖就可以得到:
+3/619
+5/275
+3/192
+1/80
+2/80
+5/55
+2/42
+2/36
+1/36
+1/35
+1/33
+1/32
+1/24
+1/21
+1/18
+1/17
+1/9
+1/3
+1/3
+1/2
| the tmax variable is a categorical variable that can only take values based on the planned sampling scheme. Thus if your planned sample schedule includes 0, 1, 2, 4, 6, and 8 hours, you cannot have a sample at 1.5 or 10 hours (unless there was a deviation). Thus the expected values for tmax are confined to some pre-selected categories. Thus when you summarize tmax results, you should NOT use averages and standard deviations, as they do not accurately describe the distribution of values. Instead, you should use medians and ranges. The median is the “middle” of the data, and the range represents the “extremes” of the data. |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 271求調劑 +4 | 生如夏花… 2026-03-11 | 4/200 |
|
|---|---|---|---|---|
|
[文學芳草園] 伙伴們,祝我生日快樂吧 +3 | myrtle 2026-03-10 | 3/150 |
|
|
[考研] 0857 資源與環(huán)境 285分 +5 | 未名考生 2026-03-09 | 5/250 |
|
|
[考研] 298求調劑 +3 | Vv呀! 2026-03-10 | 3/150 |
|
|
[考研] 一志愿湖師大化學289求調劑 +5 | XMCMM3.14159 2026-03-10 | 5/250 |
|
|
[考研] 0856材料與化工309分求調劑 +4 | ZyZy…… 2026-03-10 | 4/200 |
|
|
[考研] 0817一志愿蘇州大學280復試調劑 +9 | kk扛 2026-03-07 | 9/450 |
|
|
[考研] 一志愿:武漢理工,材料工程,英二數(shù)二 總分314 +3 | 2202020125 2026-03-10 | 4/200 |
|
|
[考研] 085701環(huán)境工程295求調劑,一志愿A區(qū)211 +8 | 等春來, 2026-03-06 | 9/450 |
|
|
[考研] 一志愿南大化學339分求調劑,四六級已過,有比賽,有文章 +7 | Gallantzhou 2026-03-07 | 7/350 |
|
|
[考研] 0856材料與化工290求調劑 +7 | Nebulala 2026-03-08 | 8/400 |
|
|
[考研] 288求調劑(0703)一志愿東北大學 +5 | 好好- 2026-03-07 | 5/250 |
|
|
[考研]
|
Sixuan wang 2026-03-06 | 7/350 |
|
|
[考研] 材料調劑 +10 | ounce. 2026-03-04 | 12/600 |
|
|
[考研] 求調劑 +4 | 呼呼?~+123456 2026-03-06 | 4/200 |
|
|
[考研] 308求調劑 +7 | 倘若起風了呢 2026-03-05 | 9/450 |
|
|
[考研] 材料與化工304求B區(qū)調劑 +4 | 邱gl 2026-03-06 | 4/200 |
|
|
[考研] 材料與化工354調劑 +4 | Lucy-xiao 2026-03-06 | 7/350 |
|
|
[考研] 085600,一志愿鄭州大學,280分求調劑 +7 | Wuqi725 2026-03-05 | 7/350 |
|
|
[考研] 286 +6 | ksncj 2026-03-04 | 6/300 |
|