Questions tagged [levels]
491 questions
3
votes
3 answers
remove level from a list extract to a data fram
I have a data frame like this
df <- data.frame(letters=letters[1:5], numbers=seq(1:5))
and lets say that I want to extram the first column into a list
firstColumn <- df[,1]
> firstColumn[[1]]
[1] a
Levels: a b c d e
Problème is I want to…
user2187202
- 337
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3
votes
1 answer
How can I select text from a row and column of a data frame without returning all Levels in R?
Possible Duplicate:
dropping factor levels in a subsetted data frame in R
I would like to get the text from a cell in a data frame (and use that text to create a file). However, whenever I select a specific row and column from the data frame, the…
Docuemada
- 1,703
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2
votes
4 answers
How to Check Which level category it is for wordpress?
Let me tell you the scenario first say the structure of the categories in wordpress is like this
Level 1: Top
Level 2: -Nextme_1
Level 3: --Nextme_2
--Nextme_3
Level 4: ---Nextme_4
---Nextme_5
Now I require to check what is the…
Rahul
- 364
- 3
- 8
- 21
2
votes
3 answers
What does the 300 level webcast or speak mean (in MSDN, webcast, trainig, etc.)?
I suppose this is either some Microsoft or even US-wide scheme.
However I have no idea what does 300, 400, etc. mean.
Can someone please explain this?
What do those numbers mean?
Is it MS thing or is it in wider usage?
Piotr Owsiak
- 6,081
- 8
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2
votes
3 answers
Python Perform Custom Calculations on 0 level columns
I have a Data Frame:
import pandas as pd
df = pd.DataFrame({
('A', 'a'): [1, 2, 3],
('A', 'b'): [4, 5, 6],
('B', 'a'): [7, 8, 9],
('B', 'b'): [10, 11, 12],
})
df
I would like to perform a defined calculation on each of the columns…
Evan
- 29
- 6
2
votes
1 answer
Setting authorization levels using Rest Server extension for CodeIgniter
I'm using the Rest Server (https://github.com/philsturgeon/codeigniter-restserver) extension for CodeIgniter and I'm struggling to find examples on how to set the authorization level within a method.
I've tried all of the following:
public function…
Mike
- 57
- 6
2
votes
1 answer
A problem when releveling a factor to the default order?
I have this df
df = data.frame(x = 1:3)
converted to a factor
df$x = factor(df$x)
the levels by default are
str(df)
now let's make level 2 as the reference level
df$x = relevel(df$x,ref=2)
everything till now is ok. but when deciding to make…
Anas116
- 797
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- 9
2
votes
3 answers
is there a simple way to recode levels of a factor variable so that levels occuring below a given frequency are recoded to "other"
theshold <- c(0.001, 0.5, 0.1)
df$a df$b df$c - Recode levels based on level frequency of less than first threshold
df$x df$y df$x - Recode levels based on level frequency of less than second threshold
df$d df$e df$f - Recode levels based on level…
Damien Conway
- 41
- 4
2
votes
2 answers
Mapping non-numeric factor to choose higher value between two columns in R
I have a dataframe with two column: PathGroupStage, ClinGroupStage. I want to create a new column, OutputStage, that chooses the higher stage.
Valid value of stage: I, IA, IB, II, IIA, IIB, III, IIIA, IIIB, IIIC ,IV, IVA, IVB, IVC, Unknown.
If both…
sutsabs
- 431
- 2
- 11
2
votes
0 answers
How to make a spatial plot within desired level of values of a variable from netcdf file using matlab
I could able to interpolate and plot chlorophyll concentration with respective x ,y. Now I need to display within a specific range of values. For example value between 0 and 10 as in the code below
ncfile_1 =…
Karthikeyan M
- 21
- 2
2
votes
1 answer
Applying same factor levels to multiple variables with differing amount of levels in R
I have a data.table with 168 variables and 8,278 observations. Variables 69:135 are originally stored as strings. They should become region dummies and I want to end up with levels 2 (=yes, company operates here) and 1 (=no, company does not operate…
ilka
- 59
- 7
2
votes
0 answers
How to query MongoDB with deep and multiple levels
I have the following json as example:
{
"a": {
"b": {
"c": {
"d1": {
"v1": "valv1",
"v2": "valv2"
},
"d2": {
"v1": "valv1",
"v2":…
user10529711
- 49
- 4
2
votes
2 answers
Relevel many variables with given different reference level using for loop in r
I need to change the reference level for a, b, d, and e variables. The reference level should be 3 for variable a and 2 for variable b, d and e. This can be done separately. But want to do at once or using for loop. Following is the code that I have…
SAN
- 25
- 4
2
votes
2 answers
summing rows by combining levels R
I would like to ask you a challenge on this data frame. I do not know how to aggregate() rows in summing by combining two levels of "year factor". Find a model of my df.
placette year SP1 SP2 ... SPX
1 1 2013…
Thomas Masclaux
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2
votes
0 answers
how to set an " attraction" value or levels to certain patch colors Netlogo
I'm fairly new with coding and Netlogo. I hope someone could help me. I have tried and checked different models in the models library and samples in the internet. I still can't figure it out
So, my question are as follows:
Is there a way to set a…
Lyne
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