r

问题 I have a sample table with some but not all NA values that need to be replaced. > dat id message index 1 1 <NA> 1 2 1 foo 2 3 1 foo 3 4 1 <NA> 4 5 1 foo 5 6 1 <NA> 6 7 2 <NA> 1 8 2 baz 2 9 2 <NA> 3 10 2 baz 4 11 2 baz 5 12 2 baz 6 13 3 bar 1 14 3 <NA> 2 15 3 <NA> 3 16 3 bar 4 17 3 <NA> 5 18 3 bar 6 19 3 <NA> 7 20 3 qux 8 My objective is to replace the NA values that are surrounded by the same "message" using the first appearance of the message (the least index value) and the last appearance

问题 The code below illustrates my question. I want to use the ggRadar function in ggiraphExtra because it allows interaction with the graph. I want a separate spider graph for each nutrient and I want each spider graph to have a separate set of connected dots for each year. As I understand things now, in ggRadar, the code mapping = aes(colour = year) is what gives separate dots for each year. in facet_wrap the code facet_wrap(~ nutrient) is what determines how many separate spider graphs there

问题 I have this script which does a simple PCA analysis on number of variables and at the end attaches two coordinates and two other columns(presence, NZ_Field) to the output file. I have done this many times before but now its giving me this error: I understand that it means there are negative eigenvalues. I looked at similar posts which suggest to use na.omit but it didn't work. I have uploaded the "biodata.Rdata" file here: covariance matrix is not non-negative definite https://www.dropbox.com

问题 When I save a ggplot figure -- regardless of whether I use ggsave() or e.g. png() -- the facet labels come out looking blurry. For example, the following code produces a facet label 'F' that looks like the picture below, with coloration on the outer pixels of the text raster. ggplot(data.frame(x=1, y=1, f='F'), aes(x, y)) + facet_grid(. ~ f) ggsave('foo.png') Thanks in advance for any advice! PS -- As per @Brian's request, I'm updating this post to note that I'm using a Windows machine. PPS -

问题 I am getting a basic problem in R. I have to merge 72 excel files with similar data type having same variables. I have to merge them to a single data set in R. I have used the below code for merging but this seems NOT practical for so many files. Can anyone help me please? data1<-read.csv("D:/Customer_details1/data-01.csv") data2<-read.csv("D:/Customer_details2/data-02.csv") data3<-read.csv("D:/Customer_details3/data-03.csv") data_merged<-merge(data1,data2,all.x = TRUE, all.y = TRUE) data

问题 I am having trouble displaying Russian characters in the Rstudio console. I load an Excel file with Russian using the readxl package. The cyrillic displays properly in the dataframe. However, if I run a function that has an output that includes the variable names, the RStudio consoles displays symbols instead of the proper Cyrillic characters. test.xlsx contains two columns - зависимая переменная (dependent variable - numeric) and независимая переменная (independent variable, factor).

问题 I'm playing with some 2D CNN using Keras to predict Bike Sharing Demand. R performs very poorly vs Python, which reach good accuracy easily. I thought it was because of arrays shape (and some differences between R and Python), so I play with that for a while, ultimately using all possible shapes. I created the CombinationGrid object elsewhere and it looks like this: +------+------+------+------+-------+ | Dim1 | Dim2 | Dim3 | Dim4 | Order | +------+------+------+------+-------+ | 8887 | 3 | 2

问题 I'm wondering if there is a way to specify which class of the outcome variable is positive in caret's train() function. A minimal example: # Settings ctrl <- trainControl(method = "repeatedcv", number = 10, savePredictions = TRUE, summaryFunction = twoClassSummary, classProbs = TRUE) # Data data <- mtcars %>% mutate(am = factor(am, levels = c(0,1), labels = c("automatic", "manual"), ordered = T)) # Train set.seed(123) model1 <- train(am ~ disp + wt, data = data, method = "glm", family =

问题 Hi I couldn't find any useful information in regards to this one. When I try to publish to Rpubs on Rstudio v1.1.456, instead of login prompt I get this error message below. [Edited] Rstudio v1.1.456, R v3.5.1 Upload Error Occurred Error in if (result$status == 201) succeeded <- TRUE : missing value where TRUE/FALSE needed Calls: In addition: Warning message: In http(protocol, "api.rpubs.com", port, method, path, headers, : NAs introduced by coercion Execution halted I've already addded this

问题 I am trying to recreate someone's image using corrplot. This is the original image I am trying to re-create: I use the following R-code: corrplot(as.matrix(rgs), method="circle", type="upper", col=brewer.pal(n=8, name="PuOr"), tl.col="black", tl.srt=45, p.mat = as.matrix(pvalues), sig.level = 0.05, insig = "blank") Which gives me this: The problem I have is that the colour as well as the size of the circles in my plot are based on the correlations, but in the original image above the colour