multiple-columns Questions
8
I was following along with a react-beautiful-dnd tutorial that uses react component classes instead of hooks. I was writing an equivalent program with modern react syntax when I came across this er...
Army asked 31/5, 2021 at 21:18
5
Solved
I have a data frame with multiple columns. Now, I want to get rid of the row.names column (column 1), and thus I try to select all the other columns.
E.g.,
newdata <- olddata[,2:10]
is ther...
Orbit asked 10/3, 2013 at 19:53
3
Solved
Is is possible to accomplish the equivalent of a LEFT JOIN with subselect where multiple columns are required.
Here's what I mean.
SELECT m.*, (SELECT * FROM model WHERE id = m.id LIMIT 1) AS mode...
Stile asked 17/3, 2010 at 23:36
6
I have a tab-delimited text file which I send to column to "pretty print" a table.
Original file:
1<TAB>blablablabla<TAB>aaaa bbb ccc
2<TAB>blabla<TAB>xxxxxx
34<TAB>...
Prefiguration asked 22/11, 2013 at 18:7
8
Solved
I would like to write a coding standard specification document with good and bad coding examples. Each rule should have a number, a description and an example.
For example here is the rule 1:
# ...
Drawn asked 28/5, 2015 at 18:28
13
Solved
Here's the code I'm using to achieve the above layout:
.header {
height: 50px;
}
.body {
position: absolute;
top: 50px;
right: 0;
bottom: 0;
left: 0;
display: flex;
}
....
Sager asked 2/2, 2014 at 19:21
17
Solved
How to do this in pandas:
I have a function extract_text_features on a single text column, returning multiple output columns. Specifically, the function returns 6 values.
The function works, howeve...
Woodsman asked 26/4, 2013 at 12:38
3
Solved
I have a bunch of data in a postgresql database. I think that two keys should form a unique pair,
so want to enforce that in the database. I try
create unique index key1_key2_idx on table(key1,key...
Dashed asked 5/7, 2013 at 15:7
12
Solved
I am new in Binding and WPF recently I've learned how to create a listBox with multiple columns using Binding tech
<ListView ItemsSource="{Binding Items}" Margin="306,70,22,17" MouseDoubleClic...
Thunderclap asked 18/6, 2012 at 18:47
3
Solved
I have two data frames and wish to use the value in one (DF1$pos) to search through two columns in DF2 (DF2start, DF2end) and if it falls within those numbers, return DF2$name
DF1
ID pos name
chr...
Outlandish asked 23/12, 2014 at 11:24
1
Solved
I would like to have a picture on the left side of a slide, and text on the right side. I am using Quarto reveal.js.
I would expect that with the .columns div, it should work, but this gives unexpe...
Whitworth asked 7/6, 2023 at 9:24
9
Solved
I know that there are ways to swap the column order in python pandas.
Let say I have this example dataset:
import pandas as pd
employee = {'EmployeeID' : [0,1,2],
'FirstName' : ['a','b','c'],
'L...
Fagaceous asked 4/11, 2018 at 13:17
3
Solved
I ask for some help to solve the following issue. I have a dataset composed as
from to
A B
A B
C D
C D
I want to get the following dataset
from to
A B
A C
C A
C D
Basically, after group_by(from),...
Salesin asked 20/2, 2023 at 17:28
3
Solved
I have a multi level column table like this:
a
---+---+---
b | c | f
--+---+---+---
0 | 1 | 2 | 7
1 | 3 | 4 | 9
How can I drop column "c" by name? to look like this:
a
---+---
b | f
--+--...
Accidence asked 5/8, 2014 at 9:37
2
Solved
I am able to add a new column in Panda by defining user function and then using apply. However, I want to do this using lambda; is there a way around?
For example, df has two columns a and b. I wan...
Organza asked 12/11, 2015 at 20:26
6
Solved
Suppose I've data similar to following:
index id name value value2 value3 data1 val5
0 345 name1 1 99 23 3 66
1 12 name2 1 99 23 2 66
5 2 name6 1 99 23 7 66
How can we drop all those columns l...
Tavy asked 23/9, 2016 at 10:30
21
Solved
I want a two-column div layout, where each one can have variable width e.g.
div {
float: left;
}
.second {
background: #ccc;
}
<div>Tree</div>
<div class="second">...
Whelan asked 11/8, 2009 at 12:46
6
Solved
I have a list with lists and I want to print it in columns w/o any additional modules to import (i.e. pprint). The task is only for me to understand iteration over lists. This is my list of lists:
...
Maier asked 23/2, 2016 at 14:23
3
How can we transpose a Redshift table from columns to rows?
For example, if we have a generic (not already known) table like the following:
source table:
date id alfa beta gamma ... omega
2018-0...
Supernormal asked 4/9, 2018 at 21:59
3
Solved
My dataframe has four columns with colors. I want to combine them into one column called "Colors" and use commas to separate the values.
For example, I'm trying to combine into a Colors c...
Sear asked 1/1, 2019 at 21:35
9
Solved
How can I sort multiple columns in SQL and in different directions? For instance, 'column1' would be sorted descendingly and 'column2' ascendingly.
Thorin asked 12/1, 2010 at 18:2
3
I have a specific series of datasets which come in the following general form:
import pandas as pd
import random
df = pd.DataFrame({'n': random.sample(xrange(1000), 3), 't0':['a', 'b', 'c'], 't1':[...
Waistline asked 19/9, 2016 at 11:14
9
For example if I have this:
n = c(2, 3, 5)
s = c("aa", "bb", "cc")
b = c(TRUE, FALSE, TRUE)
df = data.frame(n, s, b)
n s b
1 2 aa TRUE
2 3 bb FALSE
3 5 cc TRUE
Then how do I combine the two...
Ault asked 7/8, 2013 at 23:35
8
Solved
I'm making a responsive layout with a top fixed navbar. Underneath I have two columns, one for a sidebar (3), and one for content (9). Which on desktop looks like this
navbar
[3][9]
When I resize...
Illation asked 24/11, 2013 at 5:23
3
Solved
I am having below pandas dataframe df. I am trying to rename the column names but it not working as expected.
Code:
mapping = {df.columns[0]:'Date', df.columns[1]: 'A', df.columns[2]:'B', df.co...
Medalist asked 1/11, 2017 at 17:58
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