Question

write.table of posterior probabilities error

0

Entering edit mode

rbronste ▴ 60

@rbronste-12189

Last seen 5.0 years ago

Hi,

I am trying to write a table of posterior probabilities from a Centipede function and having some trouble. Basically want to write.table of the results of the following command:

sum(fit$PostPr == 1)

Which gives me a certain number of sites with PostPr of 1, and I would like to write those specific sites to a TAB delimited file. Any ideas on how to go about doing this? I have tried the following:

write.table(Sox3_BTTP_peripheral_fit$PostPr = 1, "Sox3_BTTP_peripheral_fit", sep="\t")

but getting this error: Error: unexpected '=' in "write.table(Sox3_BTTP_peripheral_fit$PostPr ="

Thanks!

R centipede • 974 views

ADD COMMENT • link updated 7.6 years ago by James W. MacDonald 67k • written 7.6 years ago by rbronste ▴ 60

score 1 · Answer 1 · 2017-04-10

1

Entering edit mode

James W. MacDonald 67k

@james-w-macdonald-5106

Last seen 1 day ago

United States

This is a basic error in subsetting. If this is tripping you up, you should really read An Introduction to R

There is a difference between '=' and '=='. One is an assignment operator, and the other is a comparison operator. In addition, the comparison operator returns a boolean vector, which seems not to be what you want.

ADD COMMENT • link 7.6 years ago James W. MacDonald 67k

0

Entering edit mode

Thanks. Any suggestions on how to correct the mistake?

ADD REPLY • link 7.6 years ago rbronste ▴ 60

0

Entering edit mode

I already gave you a suggestion. Read An Introduction to R. In addition, I gave you like 75% of the answer. You need to re-read what I said, and if that doesn't make sense, then you really need to read An Introduction to R. You are getting tripped up by one of the most basic operations in R, and if you can't do the basics, you probably shouldn't be doing the more advanced stuff yet.