[R] Troubles with labeling x axis

[Peter Ehlers]

On 2013-03-06 06:07, iDa wrote:
> Hi!
>
> I have problems with labeling x axis while plotting time series data. I have
> 40 monthly measurement. One period lasts 4 months. I'd like to have 40 ticks
> on x axis (10 larger, the rest smaller) and labels just at the beginning of
> each period, just like in the image
> <http://r.789695.n4.nabble.com/file/n4660465/2221.jpg>
>
> My code leaves x axis empty:
>
>> data <- read.csv(file="CSV files/Komen.csv", head=TRUE, sep=";")
>> dataTimeSeries <- ts(data, frequency=12, start=c(2000,4))
>> dataTimeSeries
>       Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
> 2000               7  45  47   3  24 132  35  32  28
> 2001 161  48  31  33 161 154 420  19 149  44  54  16
> 2002 152  94  43  64 193  85  98  77 236  87  72  47
> 2003 196 120  51  27 143  99  56
>> require(graphics)
>> plot.ts(dataTimeSeries, xaxt="n", xlab= "Perioda", ylab= "Opazovane
>> vrednosti", type='l', col='red')
>> axis(side=1, at=seq(1,40,4), labels=seq(1,10,1))
>
> Thanks in advance for any help!

Have a look at what

   par("usr")

gives to see that your "at" setting makes no sense.

Peter Ehlers