For this particular example,the variables of interest are stored as key:value pairs anda single data cell could contain multiple (unknown) number of key:value pairs.The objective is to separate these key-value pairs and store the values in co... [Read more...]

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In my previous post, I went over basics of survival analysis, that included estimating Kaplan-Meier estimate for a given time-to-event data. In this post, I'm exploring on Cox's proportional hazards model for survival data. KM estimator helps in figuri... [Read more...]

In my previous post, I went over basics of survival analysis, that included estimating Kaplan-Meier estimate for a given time-to-event data. In this post, I'm exploring on Cox's proportional hazards model for survival data. KM estimator helps in figuring out whether survival function estimates for different groups are same or ... [Read more...]

I recently was looking for methods to apply to time-to-event data and started exploring Survival Analysis Models. In this post, I'm exploring basic KM estimator which is a nonparametric estimator of the survival function using a real dataset (on time t... [Read more...]

I recently was looking for methods to apply to time-to-event data and started exploring Survival Analysis Models. In this post, I'm exploring basic KM estimator. It is a nonparametric estimator of the survival function. There are couple of instances when the KM estimator comes in handy - When the survival ... [Read more...]

Following up on my earlier posts on accessing Open Government Data from R, I've wrapped this code into an R package - ogdindiar. It's available on GitHub at https://github.com/steadyfish/ogdindiarIt provides one simple function - fetch_data() to download required data resource from the https://data.gov.... [Read more...]

The current release of dplyr (v 0.4.1) offers lot more flexibility regarding usage of important verbs in non-interactive mode. In this post, I'm exploring different possible use-cases.group_by_, select_, rename_:For group_by_, select_ and rename_,... [Read more...]

As I mentioned in my previous blog post, Government of India have started an Open Data Portal for making various data public. Most of the data-sets on the portal are available for manual download. Some of the data-sets though are also available to be a... [Read more...]

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Through this blog I intend to work on some data analysis projects, publish the results here and get feedback from other data experts. I have exposure to R, Python, MATLAB and would be using suitable one of them based on needs. My interests range from W... [Read more...]