streamflow | stream processing tool designed to help build
kandi X-RAY | streamflow Summary
kandi X-RAY | streamflow Summary
Top functions reviewed by kandi - BETA
- Build a topology
- Get the next spout component
- Checks if the given active stream is active
- Set the active stream
- Compares two topology components
- Compares two Topology fields
- Returns a hash code for the class
- Creates a hashCode of this component
- Compare two Topology
- Compares two topology configurations
- Compares this component to another component
- Creates a hash code for this entry
- Entry point for testing
- Creates a hashcode of the parameters
- Init twitterpler
- Runs the engine
- Create a hash code for this class
- Extracts the AuthenticationInfo from the given Token
- Get a Kryo instance for this topology
- Provide the default MongoDB client configuration
- Provide a logger for the topology
- Bind Jersey resources
- Build a Storm topology
- Compares this object to another
- Compares two TopologyLogPage objects
- Provide entity manager
streamflow Key Features
streamflow Examples and Code Snippets
Trending Discussions on streamflow
ANSWERAnswered 2021-May-23 at 19:04
We could use a couple of options i.e. get the
names of the data with the corresponding index, convert to
symbol and evaluate (
I have a nested list with dates and river streamflow data (Flow) in different river reaches (910, 950, 1012, 1087):...
ANSWERAnswered 2021-May-21 at 19:26
Flowtest1 isn't a dataframe, just a list of two vectors, so you can't use bracket notation to subset both vectors at once. Also,
dates_FF is created with two arguments instead of a vector, so it doesn't work.
as.Date is vectorized, so if you just make the two input dates a vector it will work. This returns what you want with no need for
I am trying to run a function to download data from the USGS website using
dataRetrieval package of R and a function I have created called
getstreamflow. The code is the following:
ANSWERAnswered 2021-May-17 at 20:34
Based on the image showed in the new data, each element in the
list is nested as a list. We can extract the
list element (of length 1) with
[] and then apply the
I am trying to download data from the USGS website using the
dataRetrieval package of R.
For that purpose, I have generated a function called
getstreamflow in R that works fine when I ran for example.
ANSWERAnswered 2021-May-17 at 14:37
You wrote the
tryCatch outside of
getstreamflow. Hence, if one site fails, then
getstreamflow will return an error and nothing else. You should either supply 1 site at a time, or put the
I'm working on hydrological data in nested tables. Besides streamflow (Q) I have dates split into 3 columns (one for days, second for months and third for year)....
ANSWERAnswered 2021-Apr-26 at 15:16
Since it's a nested list use nested
How to count the number of values per column above a sequence of thresholds ?
i.e.: calculate for each column, the number of values above 100, then above 150, then above ... and store the results in a data frame ?...
ANSWERAnswered 2021-Feb-10 at 02:42
myseq <- seq(75, 400, by=25) as.data.frame(do.call(rbind, lapply(data, function(z) table(findInterval(z, myseq))))) # 0 1 2 3 4 5 6 7 8 9 10 11 12 13 # X1915 17 19 26 27 41 23 26 33 27 22 30 25 21 28 # X1916 14 26 20 28 25 26 22 23 35 28 26 30 22 40 # X1917 20 30 24 31 24 28 22 25 28 34 18 21 26 34
I’m analyzing river streamflow data with R language and I have a list of data frames. Each data frame represents a subbasin (910, 950, 1012 and 1087) and has the exact same structure and number of variables and contains a value of IHA indicators (IHA1, IHA2) per Year (2004:2007)...
ANSWERAnswered 2020-Nov-10 at 21:04
Hi Joanna a possible solution would be this:
This seems really simple, yet I can't find an easy solution. I'm working with future streamflow projections for every day of a 25 year period (2024-2050). I'm only interested in streamflow during the 61 day period between 11th of April and 10th of June each year. I want to extract the data from the seq and Data column that are within this period for each year and have it in a data frame together.
ANSWERAnswered 2020-Nov-08 at 22:50
Here is an option. Do a group by
year of the 'seq_x', then
summarise to create a
list column by subsetting 'Data' based on the
last elements of 'seq_x' and
select the column
I’m analyzing river streamflow data with R language and I have two nested lists. First holds data (Flowtest) from different river reaches called numbers such as 910, 950, 1012 and 1087. I have hundreds of daily streamflow measurements (Flow), but as I’m preparing yearly statistics the exact day and month doesn’t matter. Each measurement (Flow) is referenced to a year (Year) in the Flowtest table....
ANSWERAnswered 2020-Oct-29 at 01:20
You can use combination of
I am doing a time-series analysis where I need to calculate the change in several attributes over time. Pandas makes a simple version of this easy; the .diff(periods=n) function will calculate the difference between a row and the preceding n rows, however, that is not quite what I need......
ANSWERAnswered 2020-Oct-26 at 03:52
sum of the single day differences over a span of n days
diff consecutive rows then do a rolling sum. Since the series after
diff already has difference for 2 consecutive rows, for rolling sum we only provide
period-1 (in our case
3-1 = 2).
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
No vulnerabilities reported
You can use streamflow like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the streamflow component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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