我尝试使用上一个
中的代码将数据框转换为多边形发布，但出现错误消息。请我提供有关如何解决此问题的帮助。
谢谢。下面是我的代码：
<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_navigation"
app:startDestination="@id/scheduleFragment">
<fragment
android:id="@+id/scheduleFragment"
android:name="andy.schedulekpi.ui.fragments.schedule.ScheduleFragment"
android:label="schedule_fragment"
tools:layout="@layout/schedule_fragment"/>
<fragment
android:id="@+id/archiveFragment"
android:name="andy.schedulekpi.ui.fragments.archive.ArchiveFragment"
android:label="archive_fragment"
tools:layout="@layout/archive_fragment"/>
<fragment
android:id="@+id/teachersFragment"
android:name="andy.schedulekpi.ui.fragments.teachers.TeachersFragment"
android:label="teachers_fragment"
tools:layout="@layout/teachers_fragment"/>
<fragment
android:id="@+id/settingsFragment"
android:name="andy.schedulekpi.ui.fragments.settings.SettingsFragment"
android:label="settings_fragment"
tools:layout="@layout/settings_fragment"/>
</navigation>
运行上述命令后，我收到一条错误消息：
County MEDIAN_V latitude longitude RACE DRAG AGIP AGIP2 AGIP3
Akpa 18.7 13.637 46.048 3521875 140.1290323 55 19 5
Uopa 17.9 12.85 44.869 3980000 86.71929825 278 6 4
Kaop 15.7 14.283 45.41 6623750 167.6746988 231 66 17
Nguru 14.7 13.916 44.764 3642500 152.256705 87 15 11
Nagima 20.2 14.7666636 43.249999 23545500 121.699 271 287 450
Dagoja 17.2 16.7833302 45.5166646 2316000 135.5187713 114 374 194
AlKoma 20.7 16.7999968 51.7333304 767000 83.38818565 NA NA NA
Ikaka 18.1 15.46833146 43.5404978 5687500 99.86455331 18 29 11
Maru 17.4 15.452 44.2173 10845625 90.98423127 679 424 159
Nko 19.4 16.17 43.89 10693000 109.7594937 126 140 60
Dfor 16.8 14.702 44.336 16587000 120.7656012 74 52 30
Hydr 20.7 16.666664 49.499998 5468000 126.388535 2 5 NA
lami 23 16.17 43.156 10432875 141.3487544 359 326 795
Ntoka 16.9 13.9499962 44.1833326 21614750 134.3637902 153 84 2
Lakoje 20.6 13.244 44.606 4050250 100.5965167 168 108 75
Mbiri 14.6 15.4499982 45.333332 2386625 166.9104478 465 452 502
Masi 18.2 14.633 43.6 4265250 117.16839 6 1 NA
Sukara 20.6 16.94021 43.76393 6162750 66.72009029 974 928 1176
Shakara 18.9 15.174 44.213 10721000 151.284264 585 979 574
Bambam 18.8 14.5499978 46.83333 3017625 142.442623 101 84 134
Erika 17.8 13.506 43.759 23565000 93.59459459 697 728 1034
mydata %>%
group_by(County) %>%
summarise(geometry = st_sfc(st_cast(st_multipoint(cbind(longitude,
latitude)), 'POLYGON'))) %>%
st_sf()
请有人可以帮助我解决此问题。