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Development

Missing Name in Data-Hierarchy during “bind_rows” from dplyr in Rstudio – Getting Okex Ticker

i try to convert the okex-ticker to a dataframe, using dplyr library, which was very successfull on other marketplaces. Here´s the entire Code: library(dplyr) library(httr) GET( url = “https://www.okex.com/v2/spot/markets/tickers” ) -> okexRes x5=content(okexRes) dfokex <- bind_rows(x5$data) I think there´s something missing in brackets of the last line, like (x5$data$???), but in the environment of RStudio […]

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Development

How to interpret error while camera calibrating

I’m trying to calibrate camera using MatLab. Is reprojection error a distance between a pattern keypoint detected in a calibration image, and a corresponding world point projected into the same image? It shows Overall Mean Error (for example 0.86 pixels) and that’s what I want to understand. Does 0 is the best result?

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Development jQuery PHP

array of text field can’t send to php includes file

I have an array of text fields (user interface) that created HTML, CSS, Boostrap, Javascript, Jquery using inside of the user interfaces. Below the code here. The problem is when input elements that don’t print or send the whole array. I want to print the whole array. It prints one array element. order.php (user interface): […]

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Development

How to bypass Redis session on Spring Boot application on Redis connection failure?

I have implemented Redis session management using LettuceConnectionFactory on my Spring Boot java application by following some of the sample applications out there and the Spring documentation. It works fine when it can connect to the Redis server. But the application doesn’t respond when the connection fails because it repeatedly trying to connect. I have […]

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Development

how to check string value if table tag is available and implement regex

I have this string variable which composes a text and html tags. how do i perform regex only within the html table tag? is this possible? string input = “Hello,\nTRAVEL DETAILS\n<table border=\”1\”>\n<tr>\n<th align=\”center\”>Initial Travel Date</th>\n<th align=\”center\”>Reference Number</th>\n<th align=\”center\”>First Name</th>\n<th align=\”center\”>Surname</th>\n<th align=\”center\”>Main Reason</th>\n<th align=\”center\”>Client ID</th>\n</tr>\n<tr>\n<td align=\”center\”>{TRV TRL INIT.trn}</td>\n<td align=\”center\”>{TRV REF NO.trn}</td>\n<td align=\”center\”>{TRV FIRST NM.trn}</td>\n<td align=\”center\”>{TRV SURNAME.trn}</td>\n<td […]

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Development Plugins

Adding custom Authentication jar to kafka

currently, I am using the PlainLoginModule to authenticate users. However, I now created a jar with the code listed here and want to use that instead of PlainLoginModule: https://cwiki.apache.org/confluence/display/KAFKA/KIP-86%3A+Configurable+SASL+callback+handlers#KIP-86:ConfigurableSASLcallbackhandlers-sample_plainSampleCallbackHandlerforSASL/PLAIN. I have placed the jar file into the ~/libs folder and added listener.name.sasl_ssl.plain.sasl.server.callback.handler.class=com.synopsys.demo.DemoApplication to my server.properties and my kafka_server_jaas.conf into: KafkaServer { org.apache.kafka.common.security.plain.PlainLoginModule required username=”admin” password=”admin-secret” […]

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Development

Cannot import name ‘PowerTransformer’

I am trying to run the example code provided in this link: Gramian Angular Field to generate images from time-series. But when I try to run the code, I am getting the below error: (mne) C:\Users\Montu\Desktop\RESEARCH\codes>python convert_signal_to_images.py Traceback (most recent call last): File “convert_signal_to_images.py”, line 3, in <module> from pyts.image import GramianAngularField File “C:\Users\Montu\Anaconda3\envs\mne\lib\site-packages\pyts\image\__init__.py”, line […]

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Development Google MySQL PHP SQL

“The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in” Opencart [duplicate]

This question already has an answer here: Deprecated: mysql_connect() 15 answers Why shouldn't I use mysql_* functions in PHP? 16 answers The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [duplicate] 1 answer How to change mysql to mysqli? 12 answers mysqli or PDO – what are […]

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Development

Using REGEX to remove duplicates when entire line is not a duplicate

^(.*)(\r?\n\1)+$ replace with \1 The above is a great way to remove duplicate lines using REGEX but it requires the entire line to be a duplicate However – what would I use if I want to detect and remove dups – when the entire line s a whole is not a dup – but just […]

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Development

How can I add a function/method to the bar not the entire chart in chartjs?

I am using angular 8 and chart.js and try to add functions when click on the bar, but all I got is click on anywhere inside the chart rather than the bar. I am new to angular and I can’t find any examples. Can someone help me out which part should I add so that […]