Questions tagged [coerce]
73 questions
0
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2 answers
In Ruby, can the coerce() method know what operator it is that requires the help to coerce?
In Ruby, it seems that a lot of coerce() help can be done by
def coerce(something)
[self, something]
end
that's is, when
3 + rational
is needed, Fixnum 3 doesn't know how to handle adding a Rational, so it asks Rational#coerce for help by…
nonopolarity
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1 answer
In Ruby, how to implement "20 - point" and "point - 20" using coerce()?
In Ruby, the operation of
point - 20 # treating it as point - (20,20)
20 - point # treating it as (20,20) - point
are to be implemented.
But the following code:
class Point
attr_accessor :x, :y
def initialize(x,y)
@x, @y = x, y
…
nonopolarity
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0
votes
1 answer
Error message with a priori function in R - can not coerce list with transactions
I am new to stackoverflow so please take that into consideration when reading my question... thank you for your help.
I am trying to run the a priori function in R, but get the error:
cannot coerce list with transactions with duplicated names
I…
MDIS
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- 1
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1 answer
coercing numeric and then graph from matrix in R
I have a symmetrix distance matrix (x):
0 2.6096 2.3601 5.6109
2.6096 0 1.7045 6.8441
2.3601 1.7045 0 6.5946
5.6109 6.8441 6.5946 0
which I would like to analyse as a graph, in order to compute its spectral density. In…
user1038055
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0
votes
1 answer
Error while using optim function on likelihood equation on R
I'm a beginner to R and ran into an error while trying to use the optim function.
I have a likelihood equation that I'd like to maximize, so I've implemented the following code:
>datafile=read.delim("clipboard")
> log.lik=function(theta, x, mu){
+…
user3907725
- 11
- 1
0
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0 answers
Getting column vectors from a data.frame built from rbind lists
Data.frames seem to keep the underlying structure of the data, which can be inconvenient at times. In particular, I have a data.frame constructed from two lists (combined using rbind). Because the underlying list structure is maintained, this…
0
votes
1 answer
Coerce being called later than expected
Why is it that when I enter text in the textbox, the Coerce function is called after MainWindow.Float.Set is called?
Upon entering text, I would have expected :
OnValueCoerce -> OnValueChanged -> MainWindow.Float.Set
but I get :
MainWindow.Float.Set…
pastillman
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0
votes
1 answer
Coerce a value in SASS
I am trying to do the following statement in SASS:
($value * $ratio) + "em";
I am trying to get it to compile to a result like 16em but instead am getting "16em"
There appears to be a coercion function coerce(num_units, den_units), but I don't…
McShaman
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-1
votes
1 answer
Binding Slider.Value to property and setting Value to value above Slider.Maximum will coerce it to Maximum but the ViewModel will go out of sync
Before I start to explain my problem: The Slider is just an example for the following problem. I work on a custom control, that has to do a very similar thing like the slider does here:
Scenario:
I have bound a Slider.Value to my ViewModel property…
Jannik
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-1
votes
1 answer
How R automatically coerces character input to numeric?
I am training a random forest model in the randomForest package for my data. Some variables are in the class of character. I am pretty sure that randomForest will only take factor and numeric classes as input. So I think R automatically coerces the…
Ian
- 157
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-1
votes
1 answer
Can not merge in DT as I got Coerced double RHS to logical to
I got this error while merging 1 column from 1 df called data.all to the my working dfcalled data
setDT(data)[setDT(data.all), RX_HOSP_SURG_APPR_2010 := i.RX_HOSP_SURG_APPR_2010, on=c("PUF_CASE_ID","SR_ID" )]
Warning message: In…
Mohamed Rahouma
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-1
votes
1 answer
calling __coerce__() method on derived classes results in an error
My trial was like below, but it didn't work.
class MyNum:
def __init__(self , n):
self.n = n
class MyNum2(MyNum):
def __coerce__(self , y):
return self, y
def __radd__(self, y):
print 'radd called'
return self.n…
shinavro
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-2
votes
1 answer
Excel VBA: coerce information into comma separated strings
I have two excel worksheets ("Sheet1" and "Sheet2"). Sheet2 contains rawdata that I want to group and present in "Sheet1" based on ID. That is, I want to coerce 'FEED' and 'NUMB' based on ID, and store 'FEED' and 'NUMB' as comma separated strings…
user09034
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