[R] Two conditions selection

[James Hedges]

cycle %>% filter(col == "blue", cycle == 1)
On Tue, Aug 4, 2015 at 18:59 Rodrigo Díaz <rodlupanow at hotmail.com> wrote:

> Hi. I have a matrix like this:
>
> cycle=c(rep(1,3),rep(2,3),rep(3,3),rep(4,3))col=c(rep("blue",2),rep("green",2),rep("blue",2),rep("green",2),rep("blue",2),rep("green",2))values=c(1:12)data.frame(cycle,col,values)
> #  cycle   col values#1      1  blue      1#2      1  blue      2#3      1
> green      3#4      2 green      4#5      2  blue      5#6      2  blue
>   6#7      3 green      7#8      3 green      8#9      3  blue      9#10
>  4  blue     10#11     4 green     11#12     4 green     12
> I want to select or extract values matching 2 conditions. For example:
> values from col "blue" and cycle "1". If I use : values[col==blue] I get
> all blue values. I tried using values[c(col==blue,cycle==1)] but is not
> working. Please help. I have a very big data matrix and I do not wanna go
> to excel and start cutting the data. Thanks.
>
>
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