ex_dt_2<-data.table::copy(ex_dt)# Duplicate the datacolnames(ex_dt_2)# Print column names# [1] "a" "b" "c" "d"colnames(ex_dt_2)[2]<-"B_rename"# Rename second column nameex_dt_2 In Table 2 you can see that we have created a second data.table with a new column name ...
# Change colname of one columncolnames(data)[colnames(data)=="Old_Name"]<-"New_Name"# Change colnames of all columnscolnames(data)<-c("New_Name1","New_Name2","New_Name3")# Change colnames of some columnscolnames(data)[colnames(data)%in%c("Old_Name1","Old_Name2")]<-c("New_Na...
加载R包 library(dplyr)library(tibble)library(data.table)library(ggpubr)library(cowplot) 导入数据 phen<-read.csv("phenotype.csv")dat<-read.table("data.txt",header=T,row.names=1,sep="\t") 处理数据 mdat<-inner_join(phen,dat%>%rownames_to_column("SampleID"),by="SampleID")mdat$Group<...
Start analyzing titanic data with R and the tidyverse: learn how to filter, arrange, summarise, mutate and visualize your data with dplyr and ggplot2! Hugo Bowne-Anderson 21 min tutorial Facets for ggplot2 in R In this tutorial, you'll learn how to make the most of ggplots facetting func...
例如,假设有一个名为df的DataFrame对象,其中包含一个名为'column'的列,可以使用以下代码计算百分比变化: 首先,使用pandas的pct_change函数计算出数据的百分比变化。例如,假设有一个名为df的DataFrame对象,其中包含一个名为'column'的列,可以使用以下代码计算百分比变化: 接下来,使用字符串格式化将百分比变化转换为...
@@ -266,7 +266,7 @@ make_heatmap_ggplot = function(matrix, y_name, x_name, y_axis = TRUE,x_axis = TR requireNamespace("dplyr") requireNamespace("ggplot2") matrix_df_vis = matrix %>% data.frame() %>% rownames_to_column("y") %>% tbl_df() %>% gather(x,"score", -...
Running into something strange as I try to use dplyr's select command to reduce the number of columns I have. I name three columns but I keep getting 4. Aside from the star trek chain of command flash... Indexing with modulo has a huge performance hit ...