这是我的数据:
1999 2002 2005 2008
NON-ROAD 522.940 240.8469 248.9337 55.82356
NONPOINT 2107.625 1509.5000 1509.5000 1373.20731
ON-ROAD 346.820 134.3088 130.4304 88.27546
POINT 296.795 569.2600 1202.4900 344.97518
类型为data.frame。我想要做的是使用reshape包使它看起来像这样:
year type Emissions
1999 ON-Road 346.820
1999 NON-Road 522.940
这是家庭作业的一部分,我必须使用ggplot包来创建一个图,该图使用年份作为x轴,排放数据作为我的y轴,rownames作为不同颜色或可能取决于面看起来更好。这个任务是实际创建情节,所以我不想要求帮助以实际使用它的方式获取数据。
答案 0 :(得分:1)
在基础R中,这实际上是一个stack
操作(使用来自@ bgoldst答案的df
):
data.frame(type=rownames(df),setNames(stack(df),c("emissions","year")))
# type emissions year
#1 NON-ROAD 522.94000 1999
#2 NONPOINT 2107.62500 1999
#3 ON-ROAD 346.82000 1999
#4 POINT 296.79500 1999
#5 NON-ROAD 240.84690 2002
#6 NONPOINT 1509.50000 2002
#7 ON-ROAD 134.30880 2002
#8 POINT 569.26000 2002
#9 NON-ROAD 248.93370 2005
#10 NONPOINT 1509.50000 2005
#11 ON-ROAD 130.43040 2005
#12 POINT 1202.49000 2005
#13 NON-ROAD 55.82356 2008
#14 NONPOINT 1373.20731 2008
#15 ON-ROAD 88.27546 2008
#16 POINT 344.97518 2008
答案 1 :(得分:0)
您可以使用基础R执行此操作:
df <- data.frame(c(522.940,2107.625,346.820,296.795), c(240.8469,1509.5000,134.3088,569.2600), c(248.9337,1509.5000,130.4304,1202.4900), c(55.82356,1373.20731,88.27546,344.97518), row.names=c('NON-ROAD','NONPOINT','ON-ROAD','POINT') ); names(df) <- c('1999','2002','2005','2008');
do.call(rbind,lapply(names(df), function(n) data.frame(year=n, type=rownames(df), Emissions=df[[n]] ) ));
## year type Emissions
## 1 1999 NON-ROAD 522.94000
## 2 1999 NONPOINT 2107.62500
## 3 1999 ON-ROAD 346.82000
## 4 1999 POINT 296.79500
## 5 2002 NON-ROAD 240.84690
## 6 2002 NONPOINT 1509.50000
## 7 2002 ON-ROAD 134.30880
## 8 2002 POINT 569.26000
## 9 2005 NON-ROAD 248.93370
## 10 2005 NONPOINT 1509.50000
## 11 2005 ON-ROAD 130.43040
## 12 2005 POINT 1202.49000
## 13 2008 NON-ROAD 55.82356
## 14 2008 NONPOINT 1373.20731
## 15 2008 ON-ROAD 88.27546
## 16 2008 POINT 344.97518
如果您需要特定的数据子集,可以在以后对其进行索引,例如:将结果存储在res
中,然后获取res[res$year=='1999' & res$type%in%c('ON-ROAD','NON-ROAD'),]
以获得您在问题中给出的确切的两行数据。
答案 2 :(得分:0)
谢谢我实际上使用了重塑:
给予:
df$type=rownames(df)#creates a column from rownames of types
df2<-melt(datasum,variable="year")#gives long form data with year and types as columns