[R] first value...

Daniel Malter daniel at umd.edu
Tue Jun 23 16:10:00 CEST 2009


min(which(is.na(inc)==FALSE)) #index
inc[min(which(is.na(inc)==FALSE))] #value

hth
daniel 


-------------------------
cuncta stricte discussurus
-------------------------

-----Ursprüngliche Nachricht-----
Von: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] Im
Auftrag von Alfredo Alessandrini
Gesendet: Tuesday, June 23, 2009 10:00 AM
An: r-help at r-project.org
Betreff: [R] first value...

Hi,

I've a vector like this:

> inc
  [1]        NA        NA        NA        NA        NA        NA        NA
  [8]        NA        NA        NA        NA        NA        NA        NA
 [15]        NA        NA        NA        NA        NA        NA        NA
 [22]        NA        NA        NA        NA        NA        NA        NA
 [29]        NA        NA        NA        NA        NA        NA        NA
 [36]        NA        NA        NA        NA        NA        NA        NA
 [43]        NA        NA        NA        NA        NA        NA        NA
 [50]        NA        NA        NA        NA        NA        NA        NA
 [57]        NA        NA        NA        NA        NA        NA        NA
 [64]        NA        NA        NA        NA        NA        NA        NA
 [71]        NA        NA        NA        NA        NA        NA        NA
 [78]        NA        NA        NA        NA 13.095503 10.140119  7.989186
 [85]  8.711888  7.201234 13.029250 14.430755  8.662832  8.810785 14.421302
[92]  7.614985  7.548091  9.843389 14.977402 20.875255  7.787543  2.005056
[99]  4.016916  3.601773  4.140390  7.241999 13.280794 18.038902 18.762169

I must obtain the position of first value of the vector...

In this case is 82.

> inc[82]
[1] 13.09550


Regards,

Alfredo

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