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Questions - startswith

Merge survey columns across variables in R

I am analyzing a very large survey in which I want to combine four parts of the survey, through several combinations of 4 questions. Below I have created a small example. A little background: a respon...
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Demi

r

function

survey

startswith

across

Votes: 0

Answers: 2

Latest Answer

q2_1 <- c(NA, NA, NA, NA, NA, NA, rep(c(1:2), 1)) q5_1 <- c(NA, NA, NA, NA, rep(c(1:2), 1), NA, NA) q8_1 <- c(NA, NA, rep(c(1:2), 1), NA, NA, NA, NA) q9_1 <- c(rep(c(1:2), 1), NA, NA, NA, ...
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Yuriy Saraykin

How does one recognize and/or replace a custom-formatted string value?

I'm retrieving a JSON-conform data-structure from a live chat API, but when a chat message shows an image the message value shows the url in its own format, embedded in between %%%[ and ]%%%. The belo...
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vic73

javascript

regex

string

data-structures

startswith

Votes: 0

Answers: 2

Latest Answer

From the above comments ... "Firstly the OP does not work with a json object there is nothing like that. But the OP iterates over the event items of the response object's data-structure. For eac...
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Peter Seliger

Check if a string value of a column in a Pandas DataFrame starts with the value of another column

I am trying to concatenate two string columns col1 and col2 in a Pandas DataFrame. But I do not want to concatenate them if col2’s value already begins with the value of col1. In this case I want to u...
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Wiesenator

python

pandas

startswith

Votes: 0

Answers: 1

Latest Answer

Inspired by this answer: https://stackoverflow.com/a/64332351/18090994 Write your own startswith function and vectorize it with numpy.vectorize. In this way, you can compare the strings in col1 and co...
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Flursch

Why str.startswith() works on filtering but str.match() does not work?

I have a Dataframe in which there is a column of Mobile numbers (df1). Also, I have another Dataframe same as df1 with some of df1's Mobile numbers (df2). I want to extract the rows of df1 that have t...
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Sohrab Salehin

python

pandas

dataframe

match

startswith

Votes: 0

Answers: 1

Latest Answer

Please check this link. I think it is answered here. Use a list of values to select rows from a Pandas dataframe You could use "isin" to find the exact match. df1[df1.Mobile.isin(df2.Mobile....
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Manjunath K Mayya

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