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How to calculate the number of occurrence of a given character in each row of a column of strings?
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The stringr package provides the str_count function which seems to do what you're interested in
# Load your example data
q.data<-data.frame(number=1:3, string=c("greatgreat", "magic", "not"), stringsAsFactors = F)
library(stringr)
# Count the number of 'a's in each element of string
q.data...
Encoding Javascript Object to Json string
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Unless the variable k is defined, that's probably what's causing your trouble. Something like this will do what you want:
var new_tweets = { };
new_tweets.k = { };
new_tweets.k.tweet_id = 98745521;
new_tweets.k.user_id = 54875;
new_tweets.k.data = { };
new_tweets.k.dat...
How to select option in drop down protractorjs e2e tests
...he last found option - which threw up errors based on the wrong selection. What worked for me was stackoverflow.com/a/25333326/1945990
– Mike W
Sep 9 '15 at 8:21
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Extreme wait-time when taking a SQL Server database offline
... about at my wits end and I can't seem to find any references online as to what might be causing the speed problem, or how to fix it.
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What are the “loose objects” that the Git GUI refers to?
...ored in a pack file. Such objects are called packed objects.
git gc
is what you run to pack objects (Usually loose objects that are not needed and few weeks old are also removed and with --prune=<date> option you can force remove loose objects that are no longer needed. Like when you amend...
How can I strip all punctuation from a string in JavaScript using regex?
...ation from a string, it will probably be best to explicitly remove exactly what you want like
replace(/[.,\/#!$%\^&\*;:{}=\-_`~()]/g,"")
Doing the above still doesn't return the string as you have specified it. If you want to remove any extra spaces that were left over from removing crazy pun...
Missing Push Notification Entitlement
...ile with your id
Finally
while you upload your bin , you must check what provisioning profile used
and have many entitlements
this all cases cause this problem
hope this be helpful with you
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How to apply `git diff` patch without Git installed?
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What does the -p1 argument do?
– chrisjlee
Dec 9 '11 at 22:44
8
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Combining Multiple Commits Into One Prior To Push
...dn't have any issue not specifying a specific commit. It just defaulted to what was there.
– JCrooks
Jan 25 '17 at 20:23
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How do I parse XML in Python?
... cElementTree in the Python standard library itself; but, in this context, what they chiefly add is even more speed -- the ease of programming part depends on the API, which ElementTree defines.
First build an Element instance root from the XML, e.g. with the XML function, or by parsing a file with...