Questions tagged [isnan]
26 questions
0
votes
0 answers
Octave dataframe's problem with isna() function
I use Octave dataframe to read csv file but some columns can compute numbers of NA but some don't. How can I fix this?
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I suspect it is about the columns with char type that does not work. How can I fix this? I want to…
W. Wongcharoenbhorn
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- 6
0
votes
1 answer
My Simple JavaScript code using isNaN is not working
I am taking introductory JavaScript course, and I learned about isNaN function.
I wrote a simple program where JS repeat prompt method unless user type number in the prompt.
I don't know why my code doesn't work as I expected. If you input on the…
user11838329
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2 answers
NAN for date Python
I have a field that normally has a date value, and I would like to check if it's empty.
I've tried this:
np.isnan(row['date'] == True
However, this causes an error. This I used for string field. Is it different for each data type?
Datawoman
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0
votes
1 answer
isNaN doesnt verify if the fields are filled
var result;
var gasoline = document.getElementById("gasolina").value
var alcohol = document.getElementById("alcool").value
var converte = parseInt(gasolina)
function calculo(){
valor = document.getElementById("text")
var calculando =…
Gaby
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0
votes
2 answers
What is the difference between pd.isna for columns in single bracket vs multiple bracket? It does not return na values in multiple brackets
while I was scripting a column, I came into something very interesting. There are two ways in which I was using pd.DataFrame.isna for single and multiple columns. While I am scripting in multiple brackets pd.df.isna is returning the entire code back…
thisismihir
- 35
- 5
0
votes
2 answers
Why is isNaN('-10') false?
Just curious as to why isNaN('-10') is false? I was thinking isNaN('-10') should be true, but isNaN(-10) should be false?
Does Javascript try to convert strings to numbers before applying isNaN?
Ole
- 41,793
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-1
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3 answers
how to check not na and not empty list in a dataframe column?
d = {'status': {0: 'No', 1: 'No', 2: 'Yes', 3: 'No'}, 'time': {0: "['Morning', 'Midday', 'Afternoon']", 1: nan, 2: "[]", 3: nan}, 'id': {0: 1, 1: 5, 2: 2, 3: 3}}
df = pd.DataFrame(d)
df is the dataframe. All are object types.
I need to check not na…
deepu2711
- 59
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- 7
-1
votes
2 answers
How can I check whether the inputted character is number or not and wanted to raise an error for the same in python?
How can I check whether the inputted character is number or not and wanted to raise an error for the same in python?
class Error(Exception):
pass
class ValueTooSmallError(Error):
pass
class ValueTooLargeError(Error):
pass
class…
Sudip
- 3
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-1
votes
5 answers
How do you easily check whether a Variable is number or not in JavaScript?
I am not a JavaScript developer, but I just want to know the right way to check a variable contain a number or not. After a couple analysis I reached below solution. Is it correct way?
function calculation(n1,n2 , ...numbers) {
let…
Deepak Koshy
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-3
votes
3 answers
user must input a number NOT a letter or special character
I cannot seem to figure this out, very new to JavaScript. I've tried isNaN and typeof maybe I'm just writing the if statements wrong.
This is the code I have
// prompt user to select password length, and what characters to include
function…
Sam williams
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-3
votes
1 answer
how to fix Nan javascript
when I start to write in the htPrice field, Nan appears in the ttcPrice field, how can i fix this?
calculatTTC() {
const htPrice = parseFloat(this.htpriceTargets[0].value);
const tvaPercent = parseFloat(this.tvaTargets[0].value);
…
learn
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