CODEWITHSUNDEEP
r
arjm
arjm

Reputation: 67

How to put x-axis values

I want to put x-axis value as 2002 to 2011 to corresponding boxplot graph each displaying data from 2002 to 2011 individually. There must have some trick!

Code:

d = read.table("C:/sample.txt", sep="\t", header=TRUE)
attach(d)
summary(d)
boxplot(2002, 2003,2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
        data=d, boxcol="blue", medcol="red", whiskcol="blue", 
        staplecol="blue", ylim = c(0, 1), lty=1, las=1, ylab = "NDVI", 
        outline = FALSE, boxfill = FALSE)

Sample data

2002    2003    2004    2005    2006    2007    2008    2009    2010    2011
0.8392  0.8337  0.8145  0.8306  0.8545  0.7876  0.8491  0.8568  0.8459  0.8778
0.8251  0.7509  0.7301  0.7829  0.8103  0.7368  0.7122  0.685   0.7623  0.8159
0.8584  0.8217  0.8105  0.8295  0.8382  0.769   0.8265  0.8287  0.8344  0.8204
0.8651  0.8211  0.8346  0.8624  0.8629  0.7926  0.8543  0.8648  0.8456  0.8656
0.7991  0.7653  0.7512  0.8106  0.8354  0.7013  0.752   0.8256  0.8235  0.7579
0.8572  0.8186  0.8009  0.6988  0.719   0.7645  0.8142  0.8164  0.7529  0.7214
0.8483  0.8159  0.833   0.8401  0.8426  0.7777  0.8608  0.8243  0.8426  0.8602

Upvotes: 0

Views: 330

Answers (1)

CHP
CHP

Reputation: 17189

Your call to boxplot is wrong.

See below.

> df <- read.table(textConnection('2002    2003    2004    2005    2006    2007    2008    2009    2010    2011
+ 0.8392  0.8337  0.8145  0.8306  0.8545  0.7876  0.8491  0.8568  0.8459  0.8778
+ 0.8251  0.7509  0.7301  0.7829  0.8103  0.7368  0.7122  0.685   0.7623  0.8159
+ 0.8584  0.8217  0.8105  0.8295  0.8382  0.769   0.8265  0.8287  0.8344  0.8204
+ 0.8651  0.8211  0.8346  0.8624  0.8629  0.7926  0.8543  0.8648  0.8456  0.8656
+ 0.7991  0.7653  0.7512  0.8106  0.8354  0.7013  0.752   0.8256  0.8235  0.7579
+ 0.8572  0.8186  0.8009  0.6988  0.719   0.7645  0.8142  0.8164  0.7529  0.7214
+ 0.8483  0.8159  0.833   0.8401  0.8426  0.7777  0.8608  0.8243  0.8426  0.8602'), header=TRUE)
> boxplot(df, names=2002:2011)

enter image description here

If you call boxplot with other parameters as specified in your example, you get following.

> boxplot(df, names=2002:2011, boxcol="blue",
          medcol="red", whiskcol="blue", staplecol="blue",
          ylim = c(0, 1), lty=1, las=1, ylab = "NDVI", 
          outline = FALSE, boxfill = FALSE)

enter image description here

Upvotes: 3

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