FetalGrowthData[age]
对指定年龄的胎儿,返回胎儿发育的所有属性值.
FetalGrowthData[age,property]
对指定年龄,返回胎儿发育的指定属性值.
FetalGrowthData[age,index]
返回指定年龄和百分比的胎儿发育的所有属性值.
FetalGrowthData[age,property,index]
返回指定年龄和百分比的胎儿发育的指定属性值.
FetalGrowthData
FetalGrowthData[age]
对指定年龄的胎儿,返回胎儿发育的所有属性值.
FetalGrowthData[age,property]
对指定年龄,返回胎儿发育的指定属性值.
FetalGrowthData[age,index]
返回指定年龄和百分比的胎儿发育的所有属性值.
FetalGrowthData[age,property,index]
返回指定年龄和百分比的胎儿发育的指定属性值.
更多信息和选项
- 胎儿年龄可指定为时间的 Quantity 或使用 DateObject 指定为未来的出生日期. 也可以用 Association["Age"->age] 格式的 Association 给出.
- FetalGrowthData["Properties"] 给出所有可用的胎儿发育属性列表.
- 胎儿指标属性包括:
-
"AbdominalCircumference" 腹围 "BiparietalDiameter" 两个颅顶骨隆起间的头直径 "CrownRumpLength" 从臀部到头顶的长度 "FemurLength" 股骨的长度 "HeadCircumference" 最大头围 "MeanAbdominalDiameter" 平均腹部直径 "OccipitalFrontalDiameter" 从外枕骨隆突到中线额骨最突出点的头径 "ProjectedWeightBirth" 预产期的预计重量 "Weight" 胎儿的估计重量 - 其他属性包括:
-
"AmnioticFluidIndex" 子宫中羊水区间范围 "HeartRate" 每分钟胎儿的心跳率 "Milestones" 当前周发展到典型里程碑列表 "MilestonesNextWeek" 下周发展的里程碑 "MilestonesPreviousWeek" 上周发展的里程碑 "TotalHeartbeats" 胎儿总的估计心跳 - 百分率 index 可用于获取给定年龄胎儿分布的指定百分比的属性值.
- 百分率 index 可以是介于0到100(不含0和100)的百分比或介于0到1(不含0和1)的数字百分比 Quantity. 也可以用带有键 "Percentage" 或 "ZScore" 的 Association 指定. "ZScore" 允许指定的 z-score 值或来自于均值(0)的标准偏差数. Z-score 必须指定为介于
和
之间的数. - 对于指标属性,如果没有指定 index,则会返回在均值标准偏差内的区间.
- 当没有指定属性时,所有属性的值会以属性作为键的 Association 返回.
- FetalGrowthData 接受选项 UnitSystem,它确定返回 Quantity 对象的单位系统. 默认设置为 $UnitSystem.
- FetalGrowthData 是基于广范围的来源,通过 Wolfram Research 的人力和算法处理得到增强. 来源包括但不局限于 Seeds & Cefalo (1986)、Hadlock et al. (1985) 和 Moore & Cayle (1990).
范例
打开所有单元 关闭所有单元基本范例 (1)
FetalGrowthData[Association["Age" -> Quantity[5, "Months"]], "Weight"]FetalGrowthData[Quantity[30, "Weeks"], "Milestones"]FetalGrowthData[Quantity[7, "Months"], "HeadCircumference", Association["Percentage" -> Quantity[90, "Percent"]]]范围 (6)
FetalGrowthData["Properties"]使用 DateObject 指明预产期:
duedate = Now + Quantity[20, "Weeks"]FetalGrowthData[duedate, "HeartRate"]FetalGrowthData[Quantity[5, "Months"]]FetalGrowthData[Quantity[7, "Months"], 0.1]FetalGrowthData[Quantity[4, "Months"], "FemurLength", Quantity[10, "Percent"]]使用 z-score 指标查找偏离平均2个标准偏差的胎儿腹围:
FetalGrowthData[Quantity[7, "Month"], "AbdominalCircumference", Association["ZScore" -> 2]]选项 (1)
应用 (2)
milestonecount = Length /@ (FetalGrowthData[Quantity[Range[0, 40], "Weeks"], "Milestones"] /. _Missing -> {});ListPlot[Transpose[{Quantity[Range[0, 40], "Weeks"], milestonecount}], PlotRange -> All, Filling -> 0, AxesLabel -> Automatic]hrt = FetalGrowthData[Quantity[Range[0, 40], "Weeks"], "HeartRate"];ListPlot[Transpose[{Quantity[Range[0, 40], "Weeks"], hrt}], PlotRange -> All, Joined -> True, AxesLabel -> Automatic]属性和关系 (1)
使用 FetalGrowthData 检验出生前的平均头围和出生后的 HumanGrowthData:
fetus = Table[FetalGrowthData[Quantity[i, "Weeks"], "HeadCircumference", 0.5], {i, 16, 39}];
maleinfant = Table[HumanGrowthData[Association["Age" -> Quantity[i, "Weeks"], "Gender" -> Entity["Gender", "Male"]], "HeadCircumference", 0.5], {i, 0, 52}];
femaleinfant = Table[HumanGrowthData[Association["Age" -> Quantity[i, "Weeks"], "Gender" -> Entity["Gender", "Female"]], "HeadCircumference", 0.5], {i, 0, 52}];ListPlot[{Transpose[{Quantity[Range[-24, -1], "Weeks"], fetus}], Transpose[{Quantity[Range[0, 52], "Weeks"], maleinfant}], Transpose[{Quantity[Range[0, 52], "Weeks"], femaleinfant}]}, Joined -> True, AxesLabel -> Automatic, PlotLegends -> {"fetus", "male infant", "female infant"}]可能存在的问题 (3)
相关指南
文本
Wolfram Research (2015),FetalGrowthData,Wolfram 语言函数,https://reference.wolfram.com/language/ref/FetalGrowthData.html.
CMS
Wolfram 语言. 2015. "FetalGrowthData." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/FetalGrowthData.html.
APA
Wolfram 语言. (2015). FetalGrowthData. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/FetalGrowthData.html 年
BibTeX
@misc{reference.wolfram_2026_fetalgrowthdata, author="Wolfram Research", title="{FetalGrowthData}", year="2015", howpublished="\url{https://reference.wolfram.com/language/ref/FetalGrowthData.html}", note=[Accessed: 11-September-2026]}
BibLaTeX
@online{reference.wolfram_2026_fetalgrowthdata, organization={Wolfram Research}, title={FetalGrowthData}, year={2015}, url={https://reference.wolfram.com/language/ref/FetalGrowthData.html}, note=[Accessed: 11-September-2026]}