...随后,使用pd.read_csv()从.csv格式文件中读取数据,并存储在名为data的DataFrame中。...接下来,使用np.vstack()将x和y垂直堆叠为一个二维数组xy,并使用scipy.stats.gaussian_kde()计算二维数据的核密度估计值,并将其存储在z中;使用z.argsort()对...z进行排序,返回索引值,
SpatialPixelsDataFrame 中的NA 个单元格。我想知道是否有任何自动化方法相当于 focal 中的 terra 函数(参见 here)。 library(sp) library(sf) library(raster) library(SpatialEco) m <- raster::raster(ncol=20, nrow=20) # create raster m[] <- runif(ncell(m)) m[m < 0.2] <- NA # simulate...
(r_df) # If you do not omit NA's from the dataframe, you get Error in cov.wt(z) : 'x' must contain finite values only # PCA cor=FALSE m1<- princomp(r_df) # This is on a dataframe so it serves as a reference to the correct output m1$n.obs #> [1] 859 m1$sdev #> ...
The df is point dataframe in sf format library("tmap") # World shapefile data(World) World <- World[World$continent %in% c("Asia","Africa","Europe","Oceania","South America","North America"), ] World <- st_transform(World, "+proj=moll +lon_0=0 +x_0=0 +y_0=0") r <- te...
尝试安装R软件包“terra”时,总是出现持续的编译错误(致命错误:无法打开文件“../tools/winlibs. R...