Uwe Ligges wrote:
>
>
> Johannes Graumann wrote:
>> Hi all,
>>
>> I'm trying to use an iteration that appends something to vector
>> 'peaklabels' like so:
>> peaklabelNames <- append(
>> peaklabelNames,
>> substitute(i^{z+phantom()}*" ("*a*"AMU)",list(i="y2",z=2,a=0))
>> )
>> The vector is supposed to be used with 'text' to put labels on signals in
>> an impulse plot.
>>
>> While not vectorized
>> substitute(i^{z+phantom()}*" ("*a*"AMU)",list(i="y2",z=2,a=0))
>> works for me, the vectorized form doesn't. The labels are represented as
>> "y2"^2 (AMU)
>> (note the '"' in the printed string). Can anyone please give me a hint on
>> how to resolve this?
>
>
> I do not know what you mean by vectorized form. Can you give an example
> what you want to achieve and what you tried to do so?
Thanks for looking at this.
The actual code looks something like this:
peaklabelNames <- c()
for(i in sequence(10)){
peaklabelNames <- append(
peaklabelNames,
substitute(i^{z+phantom()}*" ("*a*"AMU)",list(i="y2",z=2,a=0))
)
}
and is than used after 'plot' as
text(somex,somey,labels=peaklabelNames)
That doesn't work as described above.
Thanks for your time, Joh
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