Bücher von Muhammad Aslam

This book is designed to provide a comprehensive introduction to R programming for data analysis, manipulation and presentation. It covers fundamental data structures such as vectors, matrices, arrays and lists, along with techniques for exploratory data analysis, data transformation and manipulation. The book explains basic statistical concepts and demonstrates their implementation using R, including descriptive statistics, graphical representation of data, probability, popular probability distributions and hypothesis testing. It also explores linear and non-linear modeling, model selection and diagnostic tools in R.The book also covers flow control and conditional calculations by using ¿¿if¿¿ conditions and loops and discusses useful functions and resources for further learning. It provides an extensive list of functions grouped according to statistics classification, which can be helpful for both statisticians and R programmers. The use of different graphic devices, high-level and low-level graphical functions and adjustment of parameters are also explained. Throughout the book, R commands, functions and objects are printed in a different font for easy identification. Common errors, warnings and mistakes in R are also discussed and classified with explanations on how to prevent them.

Planting geometry (45 cm apart single rows x 8 cmplant to plant distance with in row), supplying ofirrigation water at 80 % available soil moisturedepletion of field capacity cum de-topping (removalof 2 cm growing tips) at 70 days after sowing,fertilizer banding cum seed inoculation withbiofertilizer, flat sowing with hand weeding at 30and 60 days after sowing and application of growthregulator (NAA) @ 200 ml ha-1 in three split doses,45, 90 and 135 days after sowing could improvechickpea seed yield up to 43.77 % by applying modernproduction technology

The most common biological strategies for improving drought stress resistance include screening available maize germplasm for drought tolerance, conventional breeding strategies, and marker-assisted and genomic-assisted breeding and development of transgenic maize.