# Float 1.0 does not get converted to boolean true
**URL:** https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231
**Category:** Logstash
**Created:** [April 28, 2020, 6:04pm UTC](https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231 "2020-04-28T18:04:40Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@sc5283](https://discuss.elastic.co/u/sc5283)
#### Post date: [April 28, 2020, 6:04pm UTC](https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231/1 "2020-04-28T18:04:40Z")
logstash 7.6.2
From [mutate filter](https://www.elastic.co/guide/en/logstash/current/plugins-filters-mutate.html)
specifies float 1.0 is converted to boolean true
but this is not the case, all others work (0, 0.0, "0", etc).
I have tried also the translate filter with no success
input : ---\> {"isBool":1.0}
```auto
input { stdin { } }
filter {
translate {
field => "[isBool]"
dictionary => [
"0.0", false,
0, false,
"1.0", true,
1, true,
1.0, true,
"1", true
]
}
## or only the mutate/convert
mutate { convert => { "isBool" => "boolean" } }
}
output { stdout { codec => rubydebug } }
```
--debug provides the following:
[WARN] .... [[main]\>worker10] mutate - Failed to convert 0.1e1 into boolean.
---
### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [April 28, 2020, 6:16pm UTC](https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231/2 "2020-04-28T18:16:00Z")
> [@sc5283](#):
>
> Failed to convert 0.1e1 into boolean.
Interesting. The [code](https://github.com/logstash-plugins/logstash-filter-mutate/blob/250d7f68c389e34965e3139005115a9655ff5129/lib/logstash/filters/mutate.rb#L213) tries to match the value against the regexp /^(true|t|yes|y|1|1.0)$/i and 0.1e1 would indeed not match that.
---
### Author:  [@sc5283](https://discuss.elastic.co/u/sc5283)
#### Post date: [April 28, 2020, 6:40pm UTC](https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231/3 "2020-04-28T18:40:56Z")
Any suggestions to workaround the issue? How do I compare the float/scientific notation value?
---
### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [April 28, 2020, 7:15pm UTC](https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231/4 "2020-04-28T19:15:14Z")
You might be able to write a ruby filter that compares your field to 1 and makes it an integer if it is equal to one, or maybe even
```
k = "someField"
v = event.get(k)
if v.to_i.to_f == v
v = v.to_i
event.set(k, v)
end
```
---
### Author:  [@sc5283](https://discuss.elastic.co/u/sc5283)
#### Post date: [April 28, 2020, 7:32pm UTC](https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231/5 "2020-04-28T19:32:56Z")
Thank you
I found this easier :
```auto
mutate { convert => { "isBool" => "integer" } }
mutate { convert => { "isBool" => "boolean" } }
```
---
### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [April 28, 2020, 10:19pm UTC](https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231/6 "2020-04-28T22:19:24Z")
Yes, that would work if it is always 1.0, my code handles 1.1 as well (by not changing it). If you do not need that then your code is simpler, which generally means better.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [May 26, 2020, 10:19pm UTC](https://discuss.elastic.co/t/float-1-0-does-not-get-converted-to-boolean-true/230231/7 "2020-05-26T22:19:25Z")
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