curl --request POST \
--url https://{space}.{region}.api.niadra.com/v1/measure/power \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"effect": 9,
"alpha": 0.05,
"baseline_mean": 1,
"baseline_sd": 1,
"control_fraction": 0.5,
"daily_people": 2,
"experiment": "<string>",
"metric": "conversion",
"power": 0.8
}
'import requests
url = "https://{space}.{region}.api.niadra.com/v1/measure/power"
payload = {
"effect": 9,
"alpha": 0.05,
"baseline_mean": 1,
"baseline_sd": 1,
"control_fraction": 0.5,
"daily_people": 2,
"experiment": "<string>",
"metric": "conversion",
"power": 0.8
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
effect: 9,
alpha: 0.05,
baseline_mean: 1,
baseline_sd: 1,
control_fraction: 0.5,
daily_people: 2,
experiment: '<string>',
metric: 'conversion',
power: 0.8
})
};
fetch('https://{space}.{region}.api.niadra.com/v1/measure/power', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://{space}.{region}.api.niadra.com/v1/measure/power",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'effect' => 9,
'alpha' => 0.05,
'baseline_mean' => 1,
'baseline_sd' => 1,
'control_fraction' => 0.5,
'daily_people' => 2,
'experiment' => '<string>',
'metric' => 'conversion',
'power' => 0.8
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://{space}.{region}.api.niadra.com/v1/measure/power"
payload := strings.NewReader("{\n \"effect\": 9,\n \"alpha\": 0.05,\n \"baseline_mean\": 1,\n \"baseline_sd\": 1,\n \"control_fraction\": 0.5,\n \"daily_people\": 2,\n \"experiment\": \"<string>\",\n \"metric\": \"conversion\",\n \"power\": 0.8\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://{space}.{region}.api.niadra.com/v1/measure/power")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"effect\": 9,\n \"alpha\": 0.05,\n \"baseline_mean\": 1,\n \"baseline_sd\": 1,\n \"control_fraction\": 0.5,\n \"daily_people\": 2,\n \"experiment\": \"<string>\",\n \"metric\": \"conversion\",\n \"power\": 0.8\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://{space}.{region}.api.niadra.com/v1/measure/power")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"effect\": 9,\n \"alpha\": 0.05,\n \"baseline_mean\": 1,\n \"baseline_sd\": 1,\n \"control_fraction\": 0.5,\n \"daily_people\": 2,\n \"experiment\": \"<string>\",\n \"metric\": \"conversion\",\n \"power\": 0.8\n}"
response = http.request(request)
puts response.read_body{
"baseline_from": "given",
"baseline_mean": 123,
"baseline_sd": 123,
"daily_people": 123,
"days": 123,
"days_sequential": 123,
"effect": 123,
"metric": "conversion",
"people": 123,
"people_sequential": 123,
"traffic_from": "given",
"experiment": "<string>"
}{
"code": "<string>",
"status": 123,
"title": "<string>",
"detail": "<string>",
"request_id": "<string>",
"type": "about:blank"
}Compute power
How many days of the space’s traffic a relative difference needs to be detected, looked at once or every day.
curl --request POST \
--url https://{space}.{region}.api.niadra.com/v1/measure/power \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"effect": 9,
"alpha": 0.05,
"baseline_mean": 1,
"baseline_sd": 1,
"control_fraction": 0.5,
"daily_people": 2,
"experiment": "<string>",
"metric": "conversion",
"power": 0.8
}
'import requests
url = "https://{space}.{region}.api.niadra.com/v1/measure/power"
payload = {
"effect": 9,
"alpha": 0.05,
"baseline_mean": 1,
"baseline_sd": 1,
"control_fraction": 0.5,
"daily_people": 2,
"experiment": "<string>",
"metric": "conversion",
"power": 0.8
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
effect: 9,
alpha: 0.05,
baseline_mean: 1,
baseline_sd: 1,
control_fraction: 0.5,
daily_people: 2,
experiment: '<string>',
metric: 'conversion',
power: 0.8
})
};
fetch('https://{space}.{region}.api.niadra.com/v1/measure/power', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://{space}.{region}.api.niadra.com/v1/measure/power",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'effect' => 9,
'alpha' => 0.05,
'baseline_mean' => 1,
'baseline_sd' => 1,
'control_fraction' => 0.5,
'daily_people' => 2,
'experiment' => '<string>',
'metric' => 'conversion',
'power' => 0.8
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://{space}.{region}.api.niadra.com/v1/measure/power"
payload := strings.NewReader("{\n \"effect\": 9,\n \"alpha\": 0.05,\n \"baseline_mean\": 1,\n \"baseline_sd\": 1,\n \"control_fraction\": 0.5,\n \"daily_people\": 2,\n \"experiment\": \"<string>\",\n \"metric\": \"conversion\",\n \"power\": 0.8\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://{space}.{region}.api.niadra.com/v1/measure/power")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"effect\": 9,\n \"alpha\": 0.05,\n \"baseline_mean\": 1,\n \"baseline_sd\": 1,\n \"control_fraction\": 0.5,\n \"daily_people\": 2,\n \"experiment\": \"<string>\",\n \"metric\": \"conversion\",\n \"power\": 0.8\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://{space}.{region}.api.niadra.com/v1/measure/power")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"effect\": 9,\n \"alpha\": 0.05,\n \"baseline_mean\": 1,\n \"baseline_sd\": 1,\n \"control_fraction\": 0.5,\n \"daily_people\": 2,\n \"experiment\": \"<string>\",\n \"metric\": \"conversion\",\n \"power\": 0.8\n}"
response = http.request(request)
puts response.read_body{
"baseline_from": "given",
"baseline_mean": 123,
"baseline_sd": 123,
"daily_people": 123,
"days": 123,
"days_sequential": 123,
"effect": 123,
"metric": "conversion",
"people": 123,
"people_sequential": 123,
"traffic_from": "given",
"experiment": "<string>"
}{
"code": "<string>",
"status": 123,
"title": "<string>",
"detail": "<string>",
"request_id": "<string>",
"type": "about:blank"
}Authorizations
nia_sk_...
Body
How long the space's traffic takes to detect a difference of effect (relative: 0.1 is 10%) on
metric. The traffic and the baseline come from the space's history, the named experiment's or the
busiest one's of the last 28 days, unless given.
The relative difference to detect: 0.1 is 10%.
x <= 10x <= 0.2Per person: a rate for conversion, minor units for value.
x >= 0Per person, for value; a rate's follows from its mean.
x > 0New people a day entering the test.
x >= 1The experiment whose history to use.
1 - 256conversion, value x >= 0.5Response
Successful Response
given, history At a fixed horizon, looked at once, at the end.
conversion, value Both arms together, at a fixed horizon.
Both arms together, for the daily-looked sequential test to have decided with power.
given, history The experiment whose history was used.

