Is there a function that can return the list of all the instruments (preset names) in a soundfont file in FluidSynth or at least the number of presets in each soundbank?
I was able to get instrument names and banks using fluidsynth. The command you want to send is "inst 1" (obtain all instruments for the soundfont loaded in position 1).
$ echo "inst 1" | fluidsynth /path/to/FluidR3_GM.sf2
FluidSynth version 1.1.6
Copyright (C) 2000-2012 Peter Hanappe and others.
Distributed under the LGPL license.
SoundFont(R) is a registered trademark of E-mu Systems, Inc.
Type 'help' for help topics.
000-000 Yamaha Grand Piano
000-001 Bright Yamaha Grand
000-002 Electric Piano
000-003 Honky Tonk
000-004 Rhodes EP
000-005 Legend EP 2
000-006 Harpsichord
000-007 Clavinet
...
...
...
128-035 Jazz 3
128-036 Jazz 4
128-040 Brush
128-041 Brush 1
128-042 Brush 2
128-048 Orchestra Kit
This is not exactly "non-iterative", but it's the only way I could find to get a list of all the presets in a soundfont file.
fluid_preset_t* preset = new fluid_preset_t();
// Reset the iteration
sf->iteration_start(sf);
// Go through all the presets within the soundfont
int more = 1;
while (more) {
more = sf->iteration_next(sf, preset); // Will return 0 if no more soundfonts left
if (more) {
// Get preset name
char* presetname = preset->get_name(preset);
int banknum = preset->get_banknum(preset);
int num = preset->get_num(preset);
// Do something with the presetname, bank number and program number
// Such as add it to some list so that you can refer to it later
}
}
... where sf is a soundfont object.
Found this while going through the API documentation at http://fluidsynth.sourceforge.net/api/index.html. Note the menu at the top with links to the data structures, files, etc.
I tried this:
static void inspectsoundfont()
{
fluid_sfont_t* sfont = fluid_synth_get_sfont_by_id(synth, font_id);
for (int bank = 0; bank < 16384; bank++)
{
for (int num = 0; num < 128; num++)
{
fluid_preset_t* preset = fluid_sfont_get_preset(sfont, bank, num);
if (preset == nullptr)
continue;
const char* name = fluid_preset_get_name(preset);
std::cout << "bank: " << bank << " index: " << num << " " << name << std::endl;
}
}
}
synth is the synthesiser object, and font_id is from fluid_synth_sfload. Gave me a list of banks and preset names.
Related
I'd like to extend my instrumental Profiler in order to avoid it affect too much performances.
Im my current implementation, I'm using a ProfilerHelper taking one string, which is put whereever you want in the profiling f().
The ctor is starting the measurement and the dector is closing it, logging the Delta in an unordered_map entry, which is key is the string.
Now, I'd like to turn all of that into a faster stuff.
First of all, I'd like to create a string LUT (Look Up Table) contaning the f()s names at compile time, and turn the unordered_map to a plain vector which is paired by the string function LUT.
Now the question is: I've managed to create a LUT but std::string_view, but I cannot find a way to extend it at compile time.
A first rought trial sounds like this:
template<unsigned N>
constexpr auto LUT() {
std::array<std::string_view, N> Strs{};
for (unsigned n = 0; n < N; n++) {
Strs[n] = "";
}
return Strs;
};
constexpr std::array<std::string_view, 0> StringsLUT { LUT<0>() };
constexpr auto AddString(std::string_view const& Str)
{
constexpr auto Size = StringsLUT.size();
std::array<std::string_view, Size + 1> Copy{};
for (auto i = 0; i < Size; ++i)
Copy[i] = StringsLUT[i];
Copy[Size] = Str;
return Copy;
};
int main()
{
constexpr auto Strs = AddString(__builtin_FUNCTION());
//for (auto const Str : Strs)
std::cout << Strs[0] << std::endl;
}
So my idea should be to recall the AddString whenever needed in my f()s to be profiled, extending this list at compile time.
But of course I should take the returned Copy and replace the StringsLUT everytime, to land to a final StringsLUT with all the f() names inside it.
Is there a way to do that at compile time?
Sorry, but I'm just entering the magic "new" world of constexpr applied to LUT right in these days.
Tx for your support in advance.
Hi i'm new in pointcloud library. I'm trying to show clustering result point on rviz or pcl viewer, and then show nothing. And i realize that my data show nothing too when i subcsribe and cout that. Hopefully can help my problem, thanks
This is my code for clustering and send node
void cloudReceive(const sensor_msgs::PointCloud2ConstPtr& inputMsg){
mutex_lock.lock();
pcl::fromROSMsg(*inputMsg, *inputCloud);
cout<<inputCloud<<endl;
pcl::search::KdTree<pcl::PointXYZRGB>::Ptr tree (new pcl::search::KdTree<pcl::PointXYZRGB>);
tree->setInputCloud(inputCloud);
std::vector<pcl::PointIndices> cluster_indices;
pcl::EuclideanClusterExtraction<pcl::PointXYZRGB> ec;
ec.setClusterTolerance(0.03);//2cm
ec.setMinClusterSize(200);//min points
ec.setMaxClusterSize(1000);//max points
ec.setSearchMethod(tree);
ec.setInputCloud(inputCloud);
ec.extract(cluster_indices);
if(cluster_indices.size() > 0){
std::vector<pcl::PointIndices>::const_iterator it;
int i = 0;
for (it = cluster_indices.begin(); it != cluster_indices.end(); ++it){
if(i >= 10)
break;
cloud_cluster[i]->points.clear();
std::vector<int>::const_iterator idx_it;
for (idx_it = it->indices.begin(); idx_it != it->indices.end(); idx_it++)
cloud_cluster[i]->points.push_back(inputCloud->points[*idx_it]);
cloud_cluster[i]->width = cloud_cluster[i]->points.size();
// cloud_cluster[i]->height = 1;
// cloud_cluster[i]->is_dense = true;
cout<<"PointCloud representing the Cluster: " << cloud_cluster[i]->points.size() << " data points"<<endl;
std::stringstream ss;
ss<<"cobaa_pipecom2_cluster_"<< i << ".pcd";
writer.write<pcl::PointXYZRGB> (ss.str(), *cloud_cluster[i], false);
pcl::toROSMsg(*cloud_cluster[i], outputMsg);
// cout<<"data = "<< outputMsg <<endl;
cloud_cluster[i]->header.frame_id = FRAME_ID;
pclpub[i++].publish(outputMsg);
// i++;
}
}
else
ROS_INFO_STREAM("0 clusters extracted\n");
}
And this one is the main
int main(int argc, char** argv){
for (int z = 0; z < 10; z++) {
// std::cout << " - clustering/" << z << std::endl;
cloud_cluster[z] = pcl::PointCloud<pcl::PointXYZRGB>::Ptr(new pcl::PointCloud<pcl::PointXYZRGB>);
cloud_cluster[z]->height = 1;
cloud_cluster[z]->is_dense = true;
// cloud_cluster[z]->header.frame_id = FRAME_ID;
}
ros::init(argc,argv,"clustering");
ros::NodeHandlePtr nh(new ros::NodeHandle());
pclsub = nh->subscribe("/pclsegmen",1,cloudReceive);
std::string pub_str("clustering/0");
for (int z = 0; z < 10; z++) {
pub_str[11] = z + 48;//48=0(ASCII)
// z++;
pclpub[z] = nh->advertise <sensor_msgs::PointCloud2> (pub_str, 1);
}
// pclpub = nh->advertise<sensor_msgs::PointCloud2>("/pclcluster",1);
ros::spin();
}
This isn't an exact answer, but I think it addresses your issue & may ease your debugging.
RViz can directly subscribe to a published point cloud, the one I'm assuming you're trying to see in the cloud_receive callback. If you set the Frame to whichever frame it's being published at, and add it from the available topics, you should see the points. (Easier than trying to rebroadcast it as different topics).
Also, I recommend looking at the rostopic command line tool. You can do rostopic list to check if it's being published, rostopic bw to see if it's really publishing the expected volume of data (ex bytes vs kilobytes vs megabytes), rostopic hz to see how frequently (if ever) it's publishing, and (briefly) rostopic echo to look at the data itself. (This is me assuming from your question it's more an issue with the data coming into your node).
If you're having trouble, not with data coming into the node, nor with the visualization of pointcloud data in general, but with the transformed data that's supposed to come out of the node, I would check that the clustering worked, & reduce your code moreso to just having 1 publisher publish something. You may be doing something weird. Like messing up your pointers. You could also turn on stronger compilation warnings for your node with -Wall -Wextra -Werror or step through the execution of it via gdb (launch-prefix="xterm -e gdb --args").
The solution is, i change the ASCII number into lexical_cast. Thanks for your response, i hope this can help other
for (int z = 0; z < CLOUD_QTD; z++) {
// pub_str[11] = z + 48;
std::string topicName = "/pclcluster/" + boost::lexical_cast<std::string>(z);
global::pub[z] = n.advertise <sensor_msgs::PointCloud2> (topicName, 1);
}
I think I'm very close to getting this to print. However it still isn't. There is no exception thrown and it does seem to be hitting the zebra printer, but nothing. Its a long shot as I think most people are in the same position I am and know little about it. Any help anyone can give no matter how small will be welcomed, I'm losing the will to live
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
using (var stream = new MemoryStream())
{
if (responseStream == null)
{
return;
}
responseStream.CopyTo(stream);
stream.Position = 0;
using (var zipout = ZipFile.Read(stream))
{
using (var ms = new MemoryStream())
{
foreach (var e in zipout.Where(e => e.FileName.Contains(".png")))
{
e.Extract(ms);
}
if (ms.Length <= 0)
{
return;
}
var binaryData = ms.ToArray();
byte[] compressedFileData;
// Compress the data using the LZ77 algorithm.
using (var outStream = new MemoryStream())
{
using (var compress = new DeflateStream(outStream, CompressionMode.Compress, true))
{
compress.Write(binaryData, 0, binaryData.Length);
compress.Flush();
compress.Close();
}
compressedFileData = outStream.ToArray();
}
// Encode the compressed data using the MIME Base64 algorithm.
var base64 = Convert.ToBase64String(compressedFileData);
// Calculate a CRC across the encoded data.
var crc = Calc(Convert.FromBase64String(base64));
// Add a unique header to differentiate the new format from the existing ASCII hexadecimal encoding.
var finalData = string.Format(":Z64:{0}:{1}", base64, crc);
var zplToSend = "~DYR:LOGO,P,P," + finalData.Length + ",," + finalData;
const string PrintImage = "^XA^FO0,0^IMR:LOGO.PNG^FS^XZ";
try
{
var client = new System.Net.Sockets.TcpClient();
client.Connect(IpAddress, Port);
var writer = new StreamWriter(client.GetStream(), Encoding.UTF8);
writer.Write(zplToSend);
writer.Flush();
writer.Write(PrintImage);
writer.Close();
client.Close();
}
catch (Exception ex)
{
// Catch Exception
}
}
}
}
}
}
private static ushort Calc(byte[] data)
{
ushort wCrc = 0;
for (var i = 0; i < data.Length; i++)
{
wCrc ^= (ushort)(data[i] << 8);
for (var j = 0; j < 8; j++)
{
if ((wCrc & 0x8000) != 0)
{
wCrc = (ushort)((wCrc << 1) ^ 0x1021);
}
else
{
wCrc <<= 1;
}
}
}
return wCrc;
}
The following code is working for me. The issue was the commands, these are very very important! Overview of the command I have used below, more can be found here
PrintImage
^XA
Start Format Description The ^XA command is used at the beginning of ZPL II code. It is the opening bracket and indicates the start of a new label format. This command is substituted with a single ASCII control character STX (control-B, hexadecimal 02). Format ^XA Comments Valid ZPL II format requires that label formats should start with the ^XA command and end with the ^XZ command.
^FO
Field Origin Description The ^FO command sets a field origin, relative to the label home (^LH) position. ^FO sets the upper-left corner of the field area by defining points along the x-axis and y-axis independent of the rotation. Format ^FOx,y,z
x = x-axis location (in dots) Accepted Values: 0 to 32000 Default
Value: 0
y = y-axis location (in dots) Accepted Values: 0 to 32000
Default Value: 0
z = justification The z parameter is only
supported in firmware versions V60.14.x, V50.14.x, or later. Accepted
Values: 0 = left justification 1 = right justification 2 = auto
justification (script dependent) Default Value: last accepted ^FW
value or ^FW default
^IM
Image Move Description The ^IM command performs a direct move of an image from storage area into the bitmap. The command is identical to the ^XG command (Recall Graphic), except there are no sizing parameters. Format ^IMd:o.x
d = location of stored object Accepted Values: R:, E:, B:, and A: Default Value: search priority
o = object name Accepted Values: 1 to 8 alphanumeric characters Default Value: if a name is not specified, UNKNOWN is used
x = extension Fixed Value: .GRF, .PNG
^FS
Field Separator Description The ^FS command denotes the end of the field definition. Alternatively, ^FS command can also be issued as a single ASCII control code SI (Control-O, hexadecimal 0F). Format ^FS
^XZ
End Format Description The ^XZ command is the ending (closing) bracket. It indicates the end of a label format. When this command is received, a label prints. This command can also be issued as a single ASCII control character ETX (Control-C, hexadecimal 03). Format ^XZ Comments Label formats must start with the ^XA command and end with the ^XZ command to be in valid ZPL II format.
zplToSend
^MN
Media Tracking Description This command specifies the media type being used and the black mark offset in dots. This bulleted list shows the types of media associated with this command:
Continuous Media – this media has no physical characteristic (such as a web, notch, perforation, black mark) to separate labels. Label length is determined by the ^LL command.
Continuous Media, variable length – same as Continuous Media, but if portions of the printed label fall outside of the defined label length, the label size will automatically be extended to contain them. This label length extension applies only to the current label. Note that ^MNV still requires the use of the ^LL command to define the initial desired label length.
Non-continuous Media – this media has some type of physical characteristic (such as web, notch, perforation, black mark) to separate the labels.
Format ^MNa,b
a = media being used Accepted Values: N = continuous media Y = non-continuous media web sensing d, e W = non-continuous media web sensing d, e M = non-continuous media mark sensing A = auto-detects the type of media during calibration d, f V = continuous media, variable length g Default Value: a value must be entered or the command is ignored
b = black mark offset in dots This sets the expected location of the media mark relative to the point of separation between documents. If set to 0, the media mark is expected to be found at the point of separation. (i.e., the perforation, cut point, etc.) All values are listed in dots. This parameter is ignored unless the a parameter is set to M. If this parameter is missing, the default value is used. Accepted Values: -80 to 283 for direct-thermal only printers -240 to 566 for 600 dpi printers -75 to 283 for KR403 printers -120 to 283 for all other printers Default Value: 0
~DY
Download Objects Description The ~DY command downloads to the printer graphic objects or fonts in any supported format. This command can be used in place of ~DG for more saving and loading options. ~DY is the preferred command to download TrueType fonts on printers with firmware later than X.13. It is faster than ~DU. The ~DY command also supports downloading wireless certificate files. Format ~DYd:f,b,x,t,w,data
Note
When using certificate files, your printer supports:
- Using Privacy Enhanced Mail (PEM) formatted certificate files.
- Using the client certificate and private key as two files, each downloaded separately.
- Using exportable PAC files for EAP-FAST.
- Zebra recommends using Linear sty
d = file location .NRD and .PAC files reside on E: in firmware versions V60.15.x, V50.15.x, or later. Accepted Values: R:, E:, B:, and A: Default Value: R:
f = file name Accepted Values: 1 to 8 alphanumeric characters Default Value: if a name is not specified, UNKNOWN is used
b = format downloaded in data field .TTE and .TTF are only supported in firmware versions V60.14.x, V50.14.x, or later. Accepted Values: A = uncompressed (ZB64, ASCII) B = uncompressed (.TTE, .TTF, binary) C = AR-compressed (used only by Zebra’s BAR-ONE® v5) P = portable network graphic (.PNG) - ZB64 encoded Default Value: a value must be specified
clearDownLabel
^ID
Description The ^ID command deletes objects, graphics, fonts, and stored formats from storage areas. Objects can be deleted selectively or in groups. This command can be used within a printing format to delete objects before saving new ones, or in a stand-alone format to delete objects.
The image name and extension support the use of the asterisk (*) as a wild card. This allows you to easily delete a selected groups of objects. Format ^IDd:o.x
d = location of stored object Accepted Values: R:, E:, B:, and A: Default Value: R:
o = object name Accepted Values: any 1 to 8 character name Default Value: if a name is not specified, UNKNOWN is used
x = extension Accepted Values: any extension conforming to Zebra conventions
Default Value: .GRF
const string PrintImage = "^XA^FO0,0,0^IME:LOGO.PNG^FS^XZ";
var zplImageData = string.Empty;
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
using (var stream = new MemoryStream())
{
if (responseStream == null)
{
return;
}
responseStream.CopyTo(stream);
stream.Position = 0;
using (var zipout = ZipFile.Read(stream))
{
using (var ms = new MemoryStream())
{
foreach (var e in zipout.Where(e => e.FileName.Contains(".png")))
{
e.Extract(ms);
}
if (ms.Length <= 0)
{
return;
}
var binaryData = ms.ToArray();
foreach (var b in binaryData)
{
var hexRep = string.Format("{0:X}", b);
if (hexRep.Length == 1)
{
hexRep = "0" + hexRep;
}
zplImageData += hexRep;
}
var zplToSend = "^XA" + "^FO0,0,0" + "^MNN" + "~DYE:LOGO,P,P," + binaryData.Length + ",," + zplImageData + "^XZ";
var label = GenerateStreamFromString(zplToSend);
var client = new System.Net.Sockets.TcpClient();
client.Connect(IpAddress, Port);
label.CopyTo(client.GetStream());
label.Flush();
client.Close();
var cmd = GenerateStreamFromString(PrintImage);
var client2 = new System.Net.Sockets.TcpClient();
client2.Connect(IpAddress, Port);
cmd.CopyTo(client2.GetStream());
cmd.Flush();
client2.Close();var clearDownLabel = GenerateStreamFromString("^XA^IDR:LOGO.PNG^FS^XZ");
var client3 = new System.Net.Sockets.TcpClient();
client3.Connect(IpAddress, Port);
clearDownLabel.CopyTo(client3.GetStream());
clearDownLabel.Flush();
client3.Close();
}
}
}
}
}
}
Easy once you know how.
Zebra ZPL logo example in base64
Python3
import crcmod
import base64
crc16 = crcmod.predefined.mkCrcFun('xmodem')
s = hex(crc16(ZPL_LOGO.encode()))[2:]
print (f"crc16: {s}")
Poorly documented may I say the least
I am trying to extract topic from 7 millons of Twitter data. I have assumed each tweet as a document. So, I stored all tweets in a file where each line (or tweet) treated as a document. I used this file as a input file for Mallet api.
public static void LDAModel(int numofK,int numbofIteration,int numberofThread,String outputDir,InstanceList instances) throws Exception
{
// Create a model with 100 topics, alpha_t = 0.01, beta_w = 0.01
// Note that the first parameter is passed as the sum over topics, while
// the second is the parameter for a single dimension of the Dirichlet prior.
int numTopics = numofK;
ParallelTopicModel model = new ParallelTopicModel(numTopics, 1.0, 0.01);
model.addInstances(instances);
// Use two parallel samplers, which each look at one half the corpus and combine
// statistics after every iteration.
model.setNumThreads(numberofThread);
// Run the model for 50 iterations and stop (this is for testing only,
// for real applications, use 1000 to 2000 iterations)
model.setNumIterations(numbofIteration);
model.estimate();
// Show the words and topics in the first instance
// The data alphabet maps word IDs to strings
Alphabet dataAlphabet = instances.getDataAlphabet();
FeatureSequence tokens = (FeatureSequence) model.getData().get(0).instance.getData();
LabelSequence topics = model.getData().get(0).topicSequence;
Formatter out = new Formatter(new StringBuilder(), Locale.US);
for (int position = 0; position < tokens.getLength(); position++) {
// out.format("%s-%d ", dataAlphabet.lookupObject(tokens.getIndexAtPosition(position)), topics.getIndexAtPosition(position));
out.format("%s-%d ", dataAlphabet.lookupObject(tokens.getIndexAtPosition(position)), topics.getIndexAtPosition(position));
}
System.out.println(out);
// Estimate the topic distribution of the first instance,
// given the current Gibbs state.
double[] topicDistribution = model.getTopicProbabilities(0);
// Get an array of sorted sets of word ID/count pairs
ArrayList<TreeSet<IDSorter>> topicSortedWords = model.getSortedWords();
// Show top 10 words in topics with proportions for the first document
String topicsoutput="";
for (int topic = 0; topic < numTopics; topic++) {
Iterator<IDSorter> iterator = topicSortedWords.get(topic).iterator();
out = new Formatter(new StringBuilder(), Locale.US);
out.format("%d\t%.3f\t", topic, topicDistribution[topic]);
int rank = 0;
while (iterator.hasNext() && rank < 10) {
IDSorter idCountPair = iterator.next();
out.format("%s (%.0f) ", dataAlphabet.lookupObject(idCountPair.getID()), idCountPair.getWeight());
//out.format("%s ", dataAlphabet.lookupObject(idCountPair.getID()));
rank++;
}
System.out.println(out);
}
// Create a new instance with high probability of topic 0
StringBuilder topicZeroText = new StringBuilder();
Iterator<IDSorter> iterator = topicSortedWords.get(0).iterator();
int rank = 0;
while (iterator.hasNext() && rank < 10) {
IDSorter idCountPair = iterator.next();
topicZeroText.append(dataAlphabet.lookupObject(idCountPair.getID()) + " ");
rank++;
}
// Create a new instance named "test instance" with empty target and source fields.
InstanceList testing = new InstanceList(instances.getPipe());
testing.addThruPipe(new Instance(topicZeroText.toString(), null, "test instance", null));
TopicInferencer inferencer = model.getInferencer();
double[] testProbabilities = inferencer.getSampledDistribution(testing.get(0), 10, 1, 5);
System.out.println("0\t" + testProbabilities[0]);
File pathDir = new File(outputDir + File.separator+ "NumofTopics"+numTopics); //FIXME replace all strings with constants
pathDir.mkdir();
String DirPath = pathDir.getPath();
String stateFile = DirPath+File.separator+"output_state.gz";
String outputDocTopicsFile = DirPath+File.separator+"output_doc_topics.txt";
String topicKeysFile = DirPath+File.separator+"output_topic_keys";
PrintWriter writer=null;
String topicKeysFile_fromProgram = DirPath+File.separator+"output_topic";
try {
writer = new PrintWriter(topicKeysFile_fromProgram, "UTF-8");
writer.print(topicsoutput);
writer.close();
} catch (Exception e) {
e.printStackTrace();
}
model.printTopWords(new File(topicKeysFile), 11, false);
model.printDocumentTopics(new File (outputDocTopicsFile));
model.printState(new File (stateFile));
}
public static void main(String[] args) throws Exception{
// Begin by importing documents from text to feature sequences
ArrayList<Pipe> pipeList = new ArrayList<Pipe>();
// Pipes: lowercase, tokenize, remove stopwords, map to features
pipeList.add( new CharSequenceLowercase() );
pipeList.add( new CharSequence2TokenSequence(Pattern.compile("\\p{L}[\\p{L}\\p{P}]+\\p{L}")) );
pipeList.add( new TokenSequenceRemoveStopwords(new File("H:\\Data\\stoplists\\en.txt"), "UTF-8", false, false, false) );
pipeList.add( new TokenSequence2FeatureSequence() );
InstanceList instances = new InstanceList (new SerialPipes(pipeList));
Reader fileReader = new InputStreamReader(new FileInputStream(new File("E:\\Thesis Data\\DataForLDA\\freshnewData\\cleanTweets.txt")), "UTF-8");
instances.addThruPipe(new CsvIterator (fileReader, Pattern.compile("^(\\S*)[\\s,]*(\\S*)[\\s,]*(.*)$"),
3, 2, 1)); // data, label, name fields
int numberofTopic=5;
int numberofIteration=50;
int numberofThread=6;
String outputDir="J:\\Topics\\";
//int numberofTopic=5;
LDAModel(numberofTopic,numberofIteration,numberofThread,outputDir,instances);
TimeUnit.SECONDS.sleep(30);
numberofTopic=10; }
I have got three files from the above program.
1. state file
2. topic proportion file
3. key topic list
I would like to find out the number of documents allocated per topic.
For example I got the following output from key topic list file
0.004 obama (5471) canada (5283) woman (5152) vote (4879) police(3965)
where first column means topic serial number, second column means topic weight, third column means words under this topic (number of words)
Here, I got number of words under this topic but I would also like to show the number of documents where I got this topic. It would be helpful to show this output as a separate file like this. For example,
Topic 1: doc1(80%) doc2(70%) .......
Could anyone please give some idea or any source code for this?
Thanks.
The information you are looking for is contained in the file "2. topic proportion" you mentioned. Note that every document contains each topic with some percentage (although the percentages may be large for one topic and extremly small for others). You will have to decide what you want to extract from the file: The dominant topic (it is in column 3); The dominant topic, but only when the percentage is at least 50% (sometimes, two topics have almost the same percentage) ...
Last semester in an assignment the class had to model a bank account in C++. This semester we are doing the same thing except in objective-c and in the form of an iOS app. I've just begun and have a basic storyboard set up to test my deposits however I cannot get my total balance to add up and I'm pretty sure it is because I instantiate my Account object with the deposit IBAction. How should this be done properly? I only need a push in the right direction and I'm confident I can hit the ground running from there with the rest. See attached code:
- (IBAction)deposit:(id)sender {
Account *acc =[[Account alloc]init];
double damount = [_textField.text doubleValue] ;
[acc deposit:(damount)];
_display.text = [NSString stringWithFormat:#"%f", acc.getBalance];
}
Original C++ code as requested:
int main(){
char szFName[32];
char szLName[32];
char szSIN[12];
char szAccType[10];
double dBalance;
int op;
Account *acc[MAX_ACCOUNTS];
int count=0;
while (count<MAX_ACCOUNTS)
{
cout << "Customer's First Name : " << flush;
cin >> szFName;
cout << "Customer's Last Name : " << flush;
cin >> szLName;
cout << "Customer's SIN : " << flush;
cin >> szSIN;
cout << "Account Type : " << flush;
cin >> szAccType;
cout << "Opening Balance : " << flush;
cin >> dBalance;
if ( !strcmp(szAccType,"Checking") )
acc[count] = new CheckingAcc(szFName, szLName, szSIN, szAccType, dBalance);
else if ( !strcmp(szAccType,"VIP") )
acc[count] = new VIPAcc(szFName, szLName, szSIN, szAccType, dBalance);
else if ( !strcmp(szAccType,"Saving") )
acc[count] = new SavingAcc(szFName, szLName, szSIN, szAccType, dBalance);
else
{
cout << "Incorect account type." << endl;
continue;
}
count++;
}
The problem you're facing is that you're creating a new bank account every time instead of maintaining a single account and adding to it.
In your original program you created an array of accounts acc that persisted during the lifetime of the user input. Since you've moved from a procedural program to a UI program with a run loop, you'll need a more persistent place to store it.
Generally, a good spot would be a property on your view controller or higher up if the objects need to persist longer than the view controller:
#property Account *account;
...
- (id)init
{
if (self) {
_account = [[Account alloc] init];
}
return self;
}
...
[self.account deposit:(damount)];
Since this is for class, you will probably want to review your textbook for topics like properties and instance variables.