Re: more colloquial do x n times
Sam,
I'm not an expert, but I think making `co-occurrences` recursive is
slightly simpler. Something like:
(defn co-occurrences [db ht depth tags]
(if (zero? depth)
tags
(recur db ht (dec depth) (co-ocs db ht tags
You'll note that I'm not reducing into tags on the last line. My version of
`co-ocs` returns all of the tags you care about, which also helps simplify
`co-occurrences`.
I also formatted the `co-ocs` function with a thread-last macro to make it
easier to read and manipulate.
I had to add a filter step to `co-ocs` in order for this to work the way
you describe; otherwise, it just returns all of the hashtags I've ever
used. Let me know if you'd like to see that code.
Chris
On Wed, Dec 3, 2014 at 9:49 PM, Sam Raker sam.ra...@gmail.com wrote:
EDIT
On Wednesday, December 3, 2014 10:45:33 PM UTC-5, Sam Raker wrote:
I've got a decent-sized corpus of tweets, organized by hashtag, in a
CouchDB db. I'm doing some initial explorations of my data, and was curious
about which hashtags show up together in tweets. I want to do a NSA-style
hops kind of algorithm--get all the hashtags that show up in the same
tweets as hashtags that show up in the same tweets as hashtags that show up
in the same tweets as my target hashtag, to an arbitrary depth. I wrote
this:
(defn co-ocs [db ht [s]]
(reduce into (or s #{})
(map #(map :text %)
(map #(get-in % [:entities
:hashtags])
(:tweets (clutch/get-document db ht))
(defn co-occurrences [db ht depth]
(loop [tags (co-ocs db ht) i 1]
(if (= i depth) (recur
(reduce into tags
(map (partial co-ocs db) tags))
(inc i))
tags)))
It works, but loop + incrementing a counter seems profoundly un-clojuric.
I suppose I could use `dotimes` + an atom, but that doesn't seem much
better. Any suggestions?
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more colloquial do x n times
I've got a decent-sized corpus of tweets, organized by hashtag, in a
CouchDB db. I'm doing some initial explorations of my data, and was curious
about which hashtags show up together in tweets. I want to do a NSA-style
hops kind of algorithm--get all the hashtags that show up in the same
tweets as hashtags that show up in the same tweets as hashtags that show up
in the same tweets as my target hashtag, to an arbitrary depth. I wrote
this:
(defn co-ocs [db ht [s]]
(reduce into (or s #{})
(map #(map :text %)
(map #(get-in % [:entities :hashtags])
(:tweets (clutch/get-document db ht))
(defn co-occurrences [db ht depth]
(loop [tags (co-ocs db 5sos) i 1]
(if (= i depth) (recur
(reduce into tags
(map (partial co-ocs db) tags))
(inc i))
tags)))
It works, but loop + incrementing a counter seems profoundly un-clojuric. I
suppose I could use `dotimes` + an atom, but that doesn't seem much better.
Any suggestions?
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Re: more colloquial do x n times
EDIT
On Wednesday, December 3, 2014 10:45:33 PM UTC-5, Sam Raker wrote:
I've got a decent-sized corpus of tweets, organized by hashtag, in a
CouchDB db. I'm doing some initial explorations of my data, and was curious
about which hashtags show up together in tweets. I want to do a NSA-style
hops kind of algorithm--get all the hashtags that show up in the same
tweets as hashtags that show up in the same tweets as hashtags that show up
in the same tweets as my target hashtag, to an arbitrary depth. I wrote
this:
(defn co-ocs [db ht [s]]
(reduce into (or s #{})
(map #(map :text %)
(map #(get-in % [:entities
:hashtags])
(:tweets (clutch/get-document db ht))
(defn co-occurrences [db ht depth]
(loop [tags (co-ocs db ht) i 1]
(if (= i depth) (recur
(reduce into tags
(map (partial co-ocs db) tags))
(inc i))
tags)))
It works, but loop + incrementing a counter seems profoundly un-clojuric.
I suppose I could use `dotimes` + an atom, but that doesn't seem much
better. Any suggestions?
--
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Groups Clojure group.
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first post.
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